How Much Money Is It If Its 1.69 Dollars Per Pound And Its 10 Pounds
- Equivalents for liquid measure out (volume)
- Equivalents for dry measure and weight
- Metric system conversion table
- Dilution of liquid pesticides at various concentrations
- Equivalent quantities of dry materials (wettable powders) for various quantities of water based on recommended pounds per 100 gallons
- Equivalent quantities of liquid materials (emulsion concentrates, etc.) for various quantities of h2o based on pints per 100 gallons
- Rate of application equivalent table
- Fertilizer conversions for specified square feet and row areas
- Fertilizer weight as measured by standard pot size
- Element concentrations for pounds soluble fertilizer in k gallons (U.Due south.) water
- Injection ratios and nitrogen concentrations for abiding fertilization
- Injector calibration with a conductivity meter
- Parts per 1000000 of desired nutrient to ounces of fertilizer carrier in 100 gallons of h2o (or grams in 1 liter) and vice versa
- Conversion factors among electrical conductivity (EC) units
- Various acids to add to irrigation water for acidification
- Amounts of food sources to combine in making diverse fertilizer formulas
- Formulas for boosted fertilizer calculations
- Miscellaneous conversions used in fertilizer calculations
- Osmocote® controlled-release fertilizers and their release periods
- Rates in lb/ydiii (kg/thou3) for incorporation of three of the nigh popular formulations of Nutricote into greenhouse root substrates
- Materials, rates necessary to lower the pH level of greenhouse potting substrate 0.5 to 1.0 units
- Estimate amount of materials required to change pH of potting mixes
- Dilution/conversion chart for various chemic growth regulators
- Pre-constitute fertilizer sources and rates of application
- Cornell Peat-lite Mix A for seedlings, bedding plants and potted plants
- Number of pots per bushel and per cubic yard of soil mix
- Number of nursery containers that tin exist filled from i yd3 of soil mix
- Coverage estimates for perlite, peat, topsoil and straw
- Plant spacing guide (greenhouse)
- Plant spacing guide (field/orchard)
- Estimated number of plants to fill up 100 ft2 bed expanse for foursquare (row) and triangular (equilateral) planting patterns using 4 to 14 inch spacing distances
- Number of bedding/groundcover plants required at various spacing for landscape planting
- Number of plants per acre at diverse spacings
- Times required to mow or trim backyard areas
- Volume of water delivered - past size of hose
- Cubic yards of soil needed at diverse depths and areas
- Areas covered in square feet at various depths
- Temperature conversion
- Formulas for computing greenhouse volume
- Formulas for computing variously shaped areas
Pesticide and fertilizer recommendations ofttimes are made on a pounds-per-acre or tons-per-acre basis for field production. However, greenhouse and nursery operators, mural professionals and orchardists ofttimes must convert these recommendations to smaller areas, such equally row anxiety or square feet per tree or per pot. Pints, cups, ounces, tablespoons and teaspoons often are the common units of measure. Metric units of measure can farther complicate conversion.
This publication is designed to help growers brand these calculations and conversions and to provide other information useful in the management, planning and operation of horticultural enterprises. A number of formulas for calculating fertilizer application rates on a parts-per-one thousand thousand footing are given. Tables for fertilizer injector scale using a electrical conductivity meter, as well equally pre-establish application rates for various soil mix components and amendments, also are provided. A brief explanation of how each tabular array is used is provided.
Tables 1 through iii assistance make up one's mind equivalent measures for liquid (volume) or dry (weight) chemical substances and too converting metric to English language units.
| Tabular array 1. Equivalents for liquid measure (volume) | |||||||||
| | |||||||||
| Gallons (gal) | Quarts (qt) | Pints (pt) | Fluid Ounces (fl oz) | Cups | Tablespoons (tbs) | Teaspoons (tsp) | Milliliters (ml) | Cubic Centimeters (cc) | Liters (50) |
| 1 | 4 | 8 | 128 | 16 | — | — | — | — | — |
| — | 1 | ii | 32 | 4 | — | — | — | — | — |
| — | — | 1 | xvi | 2 | 32 | — | — | — | — |
| — | — | — | ane | 1/viii | 2 | 6 | thirty | — | — |
| — | — | — | — | one | 16 | 48 | 240 | — | — |
| — | — | — | — | — | 1 | iii | 15 | — | — |
| — | — | — | — | — | — | i | v | — | — |
| — | — | — | — | — | — | — | 1 | 1 | — |
| — | — | — | — | — | — | — | m | 1000 | 1 |
| Table 2. Equivalents for dry measure and weight | ||
| Dry Measure | ||
| three level teaspoonfuls 16 level tablespoonfuls 2 cupfuls 2 pints | = = = = | i level tablespoonful 1 cupful i pint 1 quart |
| Weight | ||
| Pounds/Ounces | to | Metric |
| 220.46 pounds 100 pounds 2.204 pounds 1.102 pounds one pound/16 ounces 8 ounces 4 ounces 3.527 ounces 2 ounces 1 ounce 3/iv ounce 1/2 ounce i/4 ounce ane/eight ounce one/16 ounce 1/32 ounce i/64 ounce 1/128 ounce | = = = = = = = = = = = = = = = = = = | 100 kilograms (kg) 45.349 kilograms 1 kilogram 500 grams (g) 453.5900 grams 226.78 grams 113.39 grams 110 grams 56.70 grams 28.35 grams 21.25 grams 14.17 grams vii.08 grams 3.54 grams 1.77 grams 885 milligrams 442 milligrams 221 milligrams |
| Ounces | to | Grams |
| 3/eight ane/2 5/8 three/4 7/viii 1 two i/256 one/128 ane/64 ane/32 1/16 i/8 1/4 | = = = = = = = = = = = = = = | ten.631 xiv.75 17.718 21.162 24.805 28.349 56.698 0.111 0.221 0.443 0.886 ane.772 3.544 vii.087 |
| Table three. Metric arrangement conversion table | ||
| Liquid chapters | ||
| ane fluid ounce (fl oz) i pint (pt) = 16 fl oz 1 quart (qt) i gal (gal) 1 liter (l) i milliliter (ml) | = = = = = = | 30 milliliters (ml) 473 ml 946 ml three,785 ml 1,000 ml ane cubic centimeter (cc) |
| Dry textile weight | ||
| 1 ounce (avoirdupois) ane pound (lb) 1 kilogram (kg) | = = = | 28.iv grams (thousand) 453.half-dozen g 1,000 one thousand = 2.2 lb |
| Book | ||
| i cubic inch (in3) i cubic foot (ft3) 1 bushel (bu) 1 cubic yard (ydiii) | = = = = | sixteen.4 milliliters (ml) vii.48 gal = 28.3 liters (50) 1.24 ft3 = 35.2 liters 21.7 bu = 765 liters |
| Linear | ||
| ane inch (in) 1 foot (ft) i yard (yd) one meter (m) | = = = = | ii.54 centimeters (cm) 30.48 cm 91.44 cm 100 cm |
| Surface area | ||
| i square inch (in2) ane foursquare foot (ft2) 1 square yard (yd2) 1 acre (a) one square mile (Yard2) | = = = = = | 6.45 square centimeters (cm2) 0.09 foursquare meter (yard2) 0.84 square meter (gii) 0.40 hectare (ha) ii.59 square kilometer (kmii) |
Tables 4 through 7 help decide correct application rates for various pesticides.
| Table 4. Dilution of liquid pesticides at various concentrations | ||||
| Dilution | Amount Desired | |||
| 1 Gal | three Gal | 5 Gal | 15 Gal | |
| 1:100 | 2 tbs + 2 tsp | i/2 cup | 3/iv cup + 5 tsp | 1 loving cup + 3 tbs |
| 1:200 | 4 tsp | ane/4 cup | 6½ tbs | 1/2 cup + two tbs |
| 1:400 | 2 tsp | 2 tbs | 3 tbs | 4 tbs + 2½ tsp |
| 1:800 | i tsp | 1 tbs | 1 tbs + 2 tsp | 3 tbs + two½ tsp |
| 1:k | three/4 tsp | 2¼ tsp | 1 tbs + 1 tsp | 1 pt + 1/two cup |
| Example: Directions call for a 1:200 dilution. To set 3 gal of finished product, y'all would demand to add 1/iv cup. | ||||
| Table v. Equivalent quantities of dry out materials (wettable powders) for diverse quantities of water based on recommended pounds per 100 gallons | ||||||
| Water | Recommended Rates | |||||
| 100 gal | 1 lb | 2 lb | iii lb | 4 lb | v lb | 6 lb |
| l gal | ane/2 lb | 1 lb | i½ lb | 2 lb | 2½ lb | 3 lb |
| 25 gal | 4 oz | viii oz | 12 oz | 1 lb | 1¼ lb | 1½ lb |
| 12.5 gal | 2 oz | iv oz | 6 oz | 8 oz | x oz | 3/4 lb |
| 5 gal | 3 tbs | 1½ oz | 2½ oz | 3¼ oz | four oz | 5 oz |
| 1 gal | ane tsp | 2 tsp | ane tbs | four tsp | 5 tsp | two tbs |
| Example: Directions for use specify a rate of 4 lb per 100 gal water. To set up one gal of solution would crave iv tsp of textile. | ||||||
| Table 6. Equivalent quantities of liquid materials (emulsion concentrates, etc.) for diverse quantities of water based on pints per 100 gallons | ||||||
| Water | Recommended Rates | |||||
| 100gal | ane/2 pt | 1 pt | 2 pt | three pt | 4 pt | 5 pt |
| fifty gal | 4 fl oz | viii fl oz | i pt | 1½ pt | two pt | 2½ pt |
| 25 gal | 2 fl oz | iv fl oz | 8 fl oz | 12 fl oz | i pt | 1¼ pt |
| 12.five gal | one fl oz | 2 fl oz | four fl oz | 6 fl oz | 8 fl oz | 10 fl oz |
| five gal | 1 tbs | 1 fl oz | 2 fl oz | 2½ fl oz | 3 fl oz | 4 fl oz |
| 1 gal | 1/two tsp | 1 tsp | 2 tsp | 3 tsp | iv tsp | 5 tsp |
| Instance: Directions for apply specify a rate of iv pt per 100 gal water. To prepare v gal of solution would require 3 fl oz material. | ||||||
| Table vii. Rate of application equivalent table | ||
| Rate per Acre | Rate per 1000 sq ft | Rate per 100 sq ft |
| Liquid Materials | ||
| 1 pt | three/4 tbs | ane/4 tsp |
| i qt | 1½ tbs | ane/2 tsp |
| 1 gal | 6 tbs | ii tsp |
| 25 gal | 4⅔ pt | one/2 pt |
| l gal | iv⅔ qt | 1 pt |
| 100 gal | ii⅓ gal | i qt |
| 200 gal | 4⅔ gal | ii qt |
| 300 gal | 7 gal | 3 qt |
| 400 gal | ix¼ gal | 1 gal |
| 500 gal | 11½ gal | 1¼ gal |
| Dry Materials | ||
| 1 lb | ii½ tsp | i/4 tsp |
| 3 lb | 2¼ tbs | three/4 tsp |
| 4 lb | 3 tbs | one tsp |
| five lb | 4 tbs | 1¼ tsp |
| ten lb | 1/ii cup | 2 tsp |
| 100 lb | 2⅔ lb | ane/4 lb |
| 200 lb | 4⅔ lb | ane/ii lb |
| 300 lb | 7 lb | 3/4 lb |
| 400 lb | 9¼ lb | one lb |
| 500 lb | 11½ lb | 1¼ lb |
| Examples: For liquid materials, 100 gal per acre is equivalent to 2⅓ gal per 1000 fttwo or 1 qt per 100 fttwo. For dry materials, 4 lb per acre is equivalent to 3 tbs per 1000 ft2 or 1 tsp per 100 fttwo. | ||
Tables 8 through 9 aid decide the correct awarding rates for fertilizers when nutrition recommendations are based on fertilizer weight.
| Table 8. Fertilizer conversions for specified foursquare feet and row area | ||||||||
| Material grouped by approximate weight per pint | Recommended rate per acre* | Fertilizer Rate for Specific Areas | ||||||
| 100 sq ft | 1000 sq ft | 10 sq ft | 100 sq ft | Per 10 feet of row spaced** | ||||
| 1 ft | 2 ft | iii ft | ||||||
| lb | lb | lb | tbs | pt | tbs | tbs | cup | |
| 10 oz per pint | ||||||||
| Sulfur or Dried Claret | 100 | 0.2 | two.3 | 1.2 | 0.4 | 1.ii | 2.four | 0.2 |
| 500 | ane.2 | eleven.v | 6.0 | ane.9 | 6.0 | 12.0 | i.one | |
| grand | ii.3 | 23.0 | 12.0 | 3.7 | — | — | — | |
| 13 oz per pint | ||||||||
| Urea or Ammonium Nitrate or Ammonium Chloride | 100 | 0.two | 2.3 | 0.ix | 0.three | 0.nine | 1.eight | 0.2 |
| 500 | 1.2 | 11.five | 4.5 | ane.4 | 4.5 | 9.0 | 0.8 | |
| m | 2.3 | 23.0 | 9.0 | 2.viii | — | — | — | |
| xvi oz per pint | ||||||||
| Ammonium Phosphate or Potassium Chloride or Gypsum or Mixed Fertilizers | 100 | 0.2 | 2.3 | 0.vii | 0.2 | 0.7 | 1.four | 0.one |
| 500 | 1.2 | 11.5 | three.five | 1.2 | 3.5 | 7.0 | 0.7 | |
| g | 2.3 | 23.0 | seven.0 | 2.3 | — | — | — | |
| 19 oz per pint | ||||||||
| Calcium Nitrate or Ammonium Sulfate or Superphosphate | 100 | 0.2 | 2.iii | 0.6 | 0.2 | 0.6 | 1.2 | 0.one |
| 500 | one.2 | xi.five | three.0 | 1.0 | 3.0 | 6.0 | 0.half dozen | |
| k | 2.3 | 23.0 | 6.0 | ii.0 | — | — | — | |
| 23 oz per pint | ||||||||
| Ground limestone or Potassium sulfatex | 100 | 0.2 | 2.3 | 0.5 | 0.2 | 0.5 | one.0 | 0.1 |
| 500 | one.2 | 11.5 | 2.5 | 0.8 | 2.5 | v.0 | 0.5 | |
| 1000 | 2.3 | 23.0 | 5.0 | i.vi | — | — | — | |
| 2000 | 4.6 | 46.0 | 10.0 | 3.2 | — | — | — | |
| * Any of the materials listed in the get-go cavalcade can be used at the rates shown beneath. **High Rates, not desirable in row fertilization, are omitted in the table. Example: Yous wish to apply calcium nitrate at the rate of 500 lbs per acre. It weighs approximately xix oz per pt. For application to 100 ft2, y'all demand one.ii lb or 1.0 pt. | ||||||||
| Table 9. Fertilizer weight as measured by standard pot size | ||||||
| Fertilizer | Pot Size | |||||
| ii¼" | three" | 3½" | iv" | v" | 6" | |
| Ammonium nitrate | 2 oz | 5½ oz | 9 oz | 15 oz | ane lb 12 oz | two lb 15 oz |
| Urea, 45-0-0 | 2½ oz | 6 oz | 9 oz | 1 lb | 1 lb xiii oz | iii lb |
| Superphosphate | two½ oz | 6 oz | 9½ oz | one lb | 1 lb 14 oz | 3 lb two oz |
| Dusting sulfur | 2½ oz | vi oz | 10 oz | 1 lb | ane lb 14 oz | iii lb 3 oz |
| Peters, 20-5-30 | 2½ oz | vi oz | 10 oz | 1 lb 1 oz | 1 lb 15 oz | three lb three oz |
| Ammonium sulfate | 3 oz | vii oz | eleven oz | 1 lb 3 oz | 2 lb 3 oz | 3 lb 11 oz |
| Osmocote, 14-14-xiv | three oz | 7½ oz | 12 oz | ane lb 4 oz | 2 lb five oz | 3 lb 13 oz |
| MagAmp, 12-62-0 | 3 oz | 7½ oz | 12 oz | 1 lb 4 oz | 2 lb 5 oz | 3 lb fourteen oz |
| Gypsum, CaSO4 | 3 oz | viii oz | 12½ oz | i lb 5 oz | 2 lb 7 oz | 4 lb one oz |
| Calcium nitrate | three oz | eight oz | 12½ oz | 1 lb half-dozen oz | 2 lb 8 oz | 4 lb two oz |
| Peters, fifteen-0-xv | 3½ oz | 8 oz | thirteen oz | ane lb 6 oz | 2 lb 9 oz | 4 lb 5 oz |
| Potassium chloride | 3½ oz | 9 oz | 14 oz | 1 lb eight oz | 1 lb 12 oz | 4 lb 9 oz |
| Sodium nitrate | 4 oz | ix oz | xv oz | one lb 9 oz | 2 lb xiv oz | 4 lb thirteen oz |
| Dolomitic limestone | 5½ oz | thirteen oz | 1 lb 5 oz | 2 lb 4 oz | 4 lb ii oz | 6 lb 14 oz |
| Dirt flower pots are frequently used for fertilizer measurement past greenhouse operators. The above shows average weights of several representative fertilizers as measured past standard clay pots when level full. The 3-inch standard is considered to comprise viii fl oz or 1 cup. Since the actual pot size varies with the manufacturer and the volume of a given weight of fertilizer varies with wet and compaction, deviations of 10 percent may be expected only up to forty percent may occur. | ||||||
Tables ten through 14 help determine the correct application rates for fertilizers with various assay when nutrition recommendations are based on parts per million and fertilizer injectors are used to evangelize liquid plant fertilizer. Table 12 is designed to help growers calibrate their injectors.
| Tabular array x. Chemical element concentrations for pounds soluble fertilizer in 1000 gal (U.S.) water | |||||||||||||
| Desired PPM | Pounds of Fertilizer Needed | ||||||||||||
| % Nitrogen (North) | % Phosphate (P2O5) | % Potash (KiiO) | |||||||||||
| 30 | 25 | 20 | xv | 10 | 20 | fifteen | ten | v | 25 | twenty | 15 | x | |
| 300 | eight.three | 10.0 | 12.5 | 16.7 | 23.0 | — | — | — | — | 12.0 | 15.0 | xx.0 | 30.0 |
| 275 | 7.viii | 9.2 | xi.4 | 15.3 | 23.0 | — | — | — | — | 11.0 | 13.7 | eighteen.2 | 27.5 |
| 250 | 7.3 | 8.4 | x.two | thirteen.9 | 21.eight | — | — | — | — | 10.0 | 12.v | 16.7 | 26.2 |
| 225 | 6.ii | 7.5 | 9.3 | 12.5 | 18.7 | — | — | — | — | nine.0 | 11.three | xv.0 | 22.5 |
| 200 | five.6 | 6.7 | 8.4 | xi.1 | sixteen.7 | 19.2 | — | — | — | 8.0 | 10.0 | 13.3 | 20.0 |
| 175 | 4.9 | v.eight | 7.3 | 9.vii | 14.half-dozen | sixteen.eight | 22.iv | — | — | 7.0 | 8.8 | 10.7 | 17.5 |
| 150 | 4.2 | 5.0 | 6.3 | 8.iii | 12.v | 14.4 | 19.2 | 28.8 | — | 6.0 | 7.6 | 10.0 | fifteen.0 |
| 125 | 3.5 | 4.2 | 5.three | seven.0 | 10.ii | 12.0 | 16.0 | 24.0 | 48.0 | 5.0 | half dozen.2 | 8.4 | 12.v |
| 100 | 2.8 | iii.four | four.2 | 5.half dozen | 8.3 | ix.6 | 12.6 | 19.ii | 38.4 | iv.0 | 5.0 | six.7 | ten.0 |
| 75 | ii.one | two.v | 3.1 | 4.2 | 6.2 | 7.2 | 9.6 | 14.four | 28.8 | three.0 | 3.8 | 5.0 | 7.5 |
| 50 | one.4 | ane.seven | ii.1 | 2.eight | four.two | four.8 | six.4 | 9.six | 19.ii | 2.0 | 2.5 | 3.iv | five.0 |
| 25 | 0.7 | 0.9 | 1.i | 1.four | 2.ane | 2.4 | 3.2 | 4.eight | ix.six | 1.0 | i.3 | 1.7 | 2.5 |
| Instance: Yous wish to apply 200 ppm N using a 20-10-xx soluble fertilizer. Reading across from 200 ppm under the 20 percent Due north column, y'all observe 8.4 lb are needed for m gal h2o. NOTES: one oz/2 gal is about 30 lb/1000 gal; 1 oz/3 gal is about 20 lb/yard gal; 1 oz/5 gal is about 12 lb/chiliad gal. 1 oz/gal = 7490 ppm; i oz/100 gal = 75 ppm. To determine Parts Per Million (ppm) of an element in a fertilizer, simply multiply the per centum of that element by 75. The answer will be the ppm of the element per oz of the fertilizer in 100 gal of water. As an case, Ammonium Sulfate contains approximately 20 percentage Nitrogen. 20 pct multiplied past 75 is 15, which is the ppm of Nitrogen in one oz of Ammonium Sulfate per 100 gal of water. | |||||||||||||
| Table 11. Injection ratios and nitrogen concentrations for constant fertilizationane | |||
| Ratio | Ounces of Fertilizer per Gal Concentrate | ||
| 100 ppm N | 150 ppm N | 200 ppm N | |
| 30% N formulaa | |||
| 1:200 | 13.5 | twenty.two | 27.0 |
| 1:200 | ix.0 | 13.v | eighteen.0 |
| ane:150 | vi.7 | 10.1 | 13.five |
| 1:128 | 5.seven | eight.half-dozen | 11.5 |
| 1:100 | 4.5 | vi.seven | 9.0 |
| 1:fifty | 2.ii | 3.3 | 4.5 |
| ane:30 | 13.0 | 2.0 | two.7 |
| 1:24 | 1.0 | 1.six | ii.1 |
| 1:15 | 0.67 | ane.0 | 1.3 |
| 25% N formulab | |||
| 1:300 | xvi.5 | 24.7 | 33.0 |
| 1:200 | eleven.0 | 16.5 | 22.0 |
| one:150 | 8.2 | 12.three | 16.5 |
| 1:128 | 7.0 | 10.5 | 14.0 |
| 1:100 | v.5 | 8.ii | 11.0 |
| 1:50 | 2.7 | 4.one | five.5 |
| one:xxx | 1.half-dozen | ii.4 | iii.3 |
| 1:24 | 1.three | 1.nine | 2.6 |
| ane:15 | 0.82 | 1.two | i.6 |
| xx% Due north formulac | |||
| ane:300 | 20.ii | thirty.3 | twoscore.5 |
| 1:200 | 13.5 | xx.ii | 27.0 |
| ane:150 | 10.1 | 15.ane | 20.two |
| one:128 | 8.6 | 12.9 | 17.2 |
| i:100 | half-dozen.7 | 10.1 | thirteen.5 |
| 1:50 | 3.3 | v.0 | vi.7 |
| one:30 | 2.0 | iii.0 | iv.0 |
| 1:24 | 1.half dozen | ii.four | 3.2 |
| 1:15 | 1.0 | 1.5 | two.0 |
| 15% Due north formulad | |||
| 1:300 | 27.0 | 40.5 | 54.0 |
| 1:200 | 18.0 | 27.0 | 36.0 |
| 1:150 | 13.5 | 20.two | 27.0 |
| 1:128 | 11.five | 17.ii | 23.0 |
| 1:100 | 9.0 | 13.five | 18.0 |
| ane:50 | 4.5 | 6.7 | ix.0 |
| 1:thirty | 2.7 | 4.0 | five.4 |
| one:24 | ii.1 | 3.2 | 4.3 |
| 1:15 | ane.3 | ii.0 | 2.seven |
| oneFrom Brawl RedBook, 16th Edition, published by Ball Publishing. Reprinted with permission adue east.g, 30-x-ten be.one thousand., 25-5-twenty, 25-10-10, 25-0-25 ce.g., 20-20-20, xx-five-thirty, 21-7-7 de.g., 15-15-15, 15-30-fifteen, sixteen-4-12 | |||
| Tabular array 12. Injector calibration with a conductivity meter1 | ||||||
| A. Peters Unmarried Chemical element Fertilizer Components | ||||||
| ppm Nitrogen | Ammonium Nitrate NH4NO3 34% Northward | Ammonium Sulfate (NH4)2So4 21% N | Sodium Nitrate NaNO3 16% N | Potassium Nitrate KNOthree 14% N | Calcium Nitrate Ca(NO3)2 15.5% N | Epsom Common salt MgSOiv 10% Mg |
| 50 | 0.23 | 0.45 | 0.43 | 0.48 | 0.37 | 0.38 |
| 75 | 0.35 | 0.68 | 0.65 | 0.71 | 0.55 | 0.56 |
| 100 | 0.46 | 0.90 | 0.86 | 0.95 | 0.74 | 0.75 |
| 125 | 0.58 | 1.13 | 1.08 | 1.18 | 0.92 | 0.94 |
| 150 | 0.69 | 1.35 | ane.29 | 1.42 | one.eleven | 1.13 |
| 175 | 0.81 | ane.58 | ane.51 | 1.66 | i.30 | 1.31 |
| 200 | 0.92 | one.90 | 1.72 | 1.90 | 1.48 | ane.50 |
| 225 | 1.04 | 2.03 | ane.94 | 2.xiv | one.66 | i.69 |
| 250 | 1.15 | two.25 | 2.15 | 2.37 | 1.85 | 1.88 |
| 275 | ane.27 | 2.48 | two.37 | 2.61 | 2.04 | two.06 |
| 300 | one.38 | 2.70 | two.58 | 2.85 | ii.22 | 2.25 |
| 350 | 1.61 | 3.15 | 3.01 | iii.32 | two.59 | 2.63 |
| 400 | ane.84 | iii.60 | 3.44 | iii.eighty | 2.96 | 3.00 |
| 450 | 2.07 | 4.05 | 3.87 | four.27 | 3.33 | 3.38 |
| 500 | 2.30 | 4.fifty | 4.30 | four.75 | 3.70 | three.75 |
| 550 | two.53 | 4.95 | 4.73 | 5.22 | 4.07 | 4.13 |
| 600 | 2.76 | v.xl | v.16 | 5.seventy | iv.44 | four.fifty |
| 650 | two.99 | 5.85 | five.59 | 6.17 | 4.81 | four.88 |
| 700 | three.22 | 6.30 | 6.02 | half dozen.65 | five.18 | 5.25 |
| 750 | three.45 | 6.75 | 6.45 | 7.12 | 5.50 | five.63 |
| 800 | three.68 | 7.twenty | 6.88 | seven.sixty | v.92 | vi.00 |
| 850 | iii.91 | 7.65 | 7.31 | eight.07 | half dozen.29 | half-dozen.38 |
| 900 | iv.14 | eight.10 | vii.74 | viii.55 | half-dozen.66 | half-dozen.75 |
| 950 | 4.37 | 8.55 | eight.17 | 9.02 | 7.03 | 7.xiii |
| 1000 | 4.60 | 9.00 | 8.threescore | 9.50 | vii.40 | 7.50 |
| aneAdjusted from Grace Horticultural Products. W.one R. Grace & Co. Cambridge, Massachusetts 02140. NOTES: i) For utilise with meters in millimhos with Peters® Single Element Fertilizer Components. 2) These are readings made with distilled water. iii) Exam your plain irrigation water starting time and subtract that reading from the fertilizer-injected h2o. For example, your water test indicates 0.5 mmhos and you are applying 500 ppm North with calcium nitrate. Your calibration reading is 3.70 - 0.five = 3.20 mmhos. | ||||||
| Table 12. Injector calibration with a conductivity meter1 | |||||||
| B. Peters Mixed Soluble Fertilizer Analysis | |||||||
| ppm Nitrogen | 20-20-20 xx-nineteen-18 | 20-10-xv | twenty-5-30 | 25-5-20 | 25-10-10 xxx-10-x | v-11-26 Hydrosol | 15-16-17 15-eleven-29 fifteen-20-25 |
| 50 | 0.23 | 0.31 | 0.22 | 0.12 | 0.09 | 1.00 | 0.32 |
| 75 | 0.34 | 0.47 | 0.33 | 0.18 | 0.14 | ane.fifty | 0.48 |
| 100 | 0.45 | 0.62 | 0.44 | 0.24 | 0.18 | 2.00 | 0.65 |
| 125 | 0.56 | 0.78 | 0.56 | 0.30 | 0.23 | 2.l | 0.82 |
| 150 | 0.68 | 0.93 | 0.69 | 0.36 | 0.27 | 3.00 | i.00 |
| 175 | 0.79 | i.09 | 0.81 | 0.43 | 0.32 | three.fifty | 1.20 |
| 200 | 0.90 | 1.24 | 0.94 | 0.51 | 0.36 | 4.00 | 1.xl |
| 225 | 1.01 | ane.40 | 1.07 | 0.57 | 0.41 | 4.50 | 1.56 |
| 250 | i.xiii | ane.55 | i.20 | 0.62 | 0.47 | 5.00 | 1.72 |
| 275 | ane.24 | 1.71 | 1.32 | 0.71 | 0.51 | 5.fifty | 1.91 |
| 300 | 1.35 | 1.86 | 1.43 | 0.80 | 0.54 | half-dozen.00 | ii.10 |
| 350 | i.58 | ii.17 | 1.66 | 0.92 | 0.64 | half dozen.50 | 2.45 |
| 400 | 1.80 | 2.48 | ane.90 | one.04 | 0.74 | 7.00 | 2.fourscore |
| 450 | 2.03 | two.79 | 2.fifteen | 1.eighteen | 0.85 | 7.50 | three.xv |
| 500 | two.25 | 3.10 | 2.40 | 1.32 | 0.96 | eight.00 | 3.50 |
| 550 | 2.48 | three.41 | ii.61 | 1.45 | 1.06 | - | iii.84 |
| 600 | 2.lxx | 3.72 | two.82 | 1.58 | ane.16 | - | 4.18 |
| 650 | 2.93 | 4.03 | 3.03 | 1.71 | 1.26 | - | 4.52 |
| 700 | three.15 | four.34 | 3.24 | one.84 | 1.36 | - | 4.80 |
| 750 | 3.38 | 4.65 | three.45 | 1.98 | 1.46 | - | 5.20 |
| 800 | three.60 | 4.96 | 3.66 | two.xi | ane.56 | - | 5.54 |
| 850 | 3.83 | 5.27 | 3.87 | 2.24 | ane.66 | - | 5.88 |
| 900 | 4.05 | v.58 | 4.08 | 2.37 | i.76 | - | 6.22 |
| 950 | iv.28 | 5.89 | 4.29 | two.fifty | 1.86 | - | vi.56 |
| 1000 | iv.50 | 6.xx | iv.v | 2.63 | 1.96 | - | six.90 |
| aneAdapted from Grace Horticultural Products. Due west.1 R. Grace & Co. Cambridge, Massachusetts 02140. NOTES: ane) For use with meters in millimhos with Peters® Fertilizer formulations. two) These readings are made with distilled h2o. 3) Test your obviously irrigation h2o first and subtract that reading from the fertilizer-injected water. For example, your water examination indicates 0.2 mmhos and you are applying 200 ppm N with 15-15-xv fertilizer. Your scale reading is 1.30 - 0.2 = 1.10 mmhos. | |||||||
| Table 12. Injector calibration with a conductivity meter1 | |||||||
| B. Peters Mixed Soluble Fertilizer Assay (cont.) | |||||||
| ppm Nitrogen | 15-fifteen-15 | 15-10-xxx | 15-30-15 | 15-0-15 | xvi-four-12 | 21-7-seven Acid | 21-seven-vii Neutral |
| 50 | 0.thirty | 0.32 | 0.31 | 0.36 | 0.32 | 0.28 | 0.21 |
| 75 | 0.46 | 0.51 | 0.47 | 0.55 | 0.48 | 0.42 | 0.32 |
| 100 | 0.62 | 0.seventy | 0.62 | 0.74 | 0.64 | 0.56 | 0.42 |
| 125 | 0.79 | 0.87 | 0.78 | 0.94 | 0.81 | 0.70 | 0.53 |
| 150 | 0.96 | 1.50 | 0.93 | 1.15 | 0.98 | 0.84 | 0.63 |
| 175 | one.13 | 1.23 | 1.09 | ane.35 | 1.14 | 0.98 | 0.74 |
| 200 | ane.30 | 1.41 | one.24 | 1.55 | i.31 | ane.12 | 0.84 |
| 225 | 1.47 | ane.59 | i.40 | 1.72 | 1.47 | 1.26 | 0.95 |
| 250 | 1.65 | one.78 | one.55 | 1.90 | 1.62 | ane.40 | 1.05 |
| 275 | 1.82 | ane.95 | ane.71 | 2.09 | 1.81 | 1.54 | 1.16 |
| 300 | one.98 | 2.12 | 1.86 | two.28 | 2.00 | 1.68 | ane.26 |
| 350 | two.31 | 2.45 | ii.17 | 2.64 | ii.29 | 1.96 | i.47 |
| 400 | 2.65 | 2.78 | 2.48 | iii.00 | ii.58 | two.24 | 1.68 |
| 450 | 2.98 | 3.12 | 2.79 | iii.34 | ii.93 | 2.52 | i.89 |
| 500 | 3.25 | iii.46 | 3.x | 3.68 | iii.28 | 2.80 | 2.10 |
| 550 | iii.55 | 3.76 | 3.41 | iii.98 | three.57 | 3.08 | 2.31 |
| 600 | 3.85 | 4.06 | 3.72 | 4.28 | 3.86 | 3.36 | 2.52 |
| 650 | 4.fifteen | iv.36 | four.03 | iv.58 | four.15 | 3.64 | 2.73 |
| 700 | 4.45 | 4.66 | 4.34 | iv.88 | 4.44 | iii.92 | 2.94 |
| 750 | four.75 | iv.95 | iv.65 | v.20 | iv.72 | four.20 | three.fifteen |
| 800 | five.05 | 5.25 | 4.96 | 5.fifty | 4.98 | 4.48 | 3.36 |
| 850 | five.35 | five.55 | v.27 | five.eighty | v.24 | 4.76 | iii.57 |
| 900 | 5.65 | 5.85 | 5.58 | 6.x | 5.50 | 5.04 | 3.78 |
| 950 | five.95 | six.fifteen | 5.89 | 6.twoscore | 5.76 | v.32 | 3.99 |
| 1000 | half-dozen.25 | 6.45 | half dozen.xx | 6.70 | 6.00 | 5.lx | 4.20 |
| 1Adapted from Grace Horticultural Products. W.ane R. Grace & Co. Cambridge, Massachusetts 02140. NOTES: 1) For use with meters in millimhos with Peters® Fertilizer formulations. 2) These readings are fabricated with distilled water. 3) Test your plain irrigation h2o first and subtract that reading from the fertilizer-injected water. For example, your water test indicates 0.2 mmhos and you are applying 200 ppm N with 15-fifteen-15 fertilizer. Your calibration reading is 1.30 - 0.ii = one.10 mmhos. | |||||||
| Tabular array 13A. Parts per one thousand thousand of desired food to ounces of fertilizer carrier in 100 gallons of water and vice versa1 | ||||||||
| Ounces of Fertilizer Carrier in 100 Gallons | Percentage of Desired Nutrient in Fertilizer Carrier | |||||||
| 12 | 13 | xiv | 15.v | 16 | xx | 20.5 | 21 | |
| 1 | ix | 9.7 | 10.5 | 11.6 | 12.0 | fifteen.0 | 15.three | xv.7 |
| 2 | 18 | xix.v | 21.0 | 23.2 | 24.0 | 29.9 | 30.7 | 31.four |
| iii | 27 | 29.three | 31.4 | 35.0 | 35.nine | 44.9 | 46.0 | 47.2 |
| 4 | 36 | 38.9 | 41.nine | 46.4 | 47.9 | 59.ix | 61.four | 62.9 |
| 6 | 54 | 58.4 | 62.ix | 70.0 | 71.9 | 89.nine | 92.1 | 94.3 |
| viii | 72 | 77.8 | 83.eight | 92.eight | 95.eight | 119.7 | 122.vii | 125.seven |
| 16 | 144 | 155.7 | 167.7 | 185.half dozen | 191.vii | 239.v | 245.five | 251.five |
| 24 | 216 | 233.five | 251.5 | 278.iv | 287.5 | 359.two | 368.2 | 377.2 |
| 32 | 288 | 311.4 | 335.4 | 371.iii | 383.4 | 479.0 | 490.ix | 502.9 |
| 40 | 359 | 389.2 | 419.2 | 464.0 | 479.ii | 598.7 | 613.seven | 628.six |
| 48 | 431 | 467.0 | 503.0 | 556.8 | 575.0 | 718.5 | 736.iv | 754.4 |
| 56 | 503 | 544.seven | 586.9 | 649.7 | 670.9 | 838.2 | 859.2 | 880.1 |
| 64 | 575 | 622.7 | 670.7 | 742.4 | 766.seven | 958.0 | 981.nine | 1005.eight |
| 1From Nelson, P.V. 1998. Greenhouse Operations and Management, 5th ed. Published by Prentice Hall, Inc. Reprinted with permission. | ||||||||
| Table 13A. Parts per million of desired nutrient to ounces of fertilizer carrier in 100 gallons of h2o and vice versai (cont) | ||||||
| Ounces of Fertilizer Carrier in 100 Gallons | Pct of Desired Food in Fertilizer Carrier | |||||
| 33 | 44 | 45 | 53 | 60 | 62 | |
| one | 24.vii | 32.9 | 33.7 | 39.vii | 44.ix | 46.iv |
| two | 49.four | 65.ix | 67.four | 79.three | 89.8 | 92.0 |
| 3 | 74.i | 98.eight | 101.0 | 117.0 | 134.seven | 139.ii |
| 4 | 98.viii | 131.seven | 134.7 | 158.7 | 179.6 | 185.6 |
| 6 | 148.2 | 197.6 | 202.1 | 238.0 | 269.4 | 278.iv |
| eight | 197.half-dozen | 263.4 | 269.4 | 317.3 | 359.two | 371.2 |
| sixteen | 395.2 | 526.nine | 538.9 | 634.6 | 718.v | 742.iv |
| 24 | 592.7 | 790.3 | 808.iii | 952.0 | 1077.vii | 1113.6 |
| 32 | 790.three | 1053.7 | 1077.seven | 1269.3 | 1436.9 | 1484.8 |
| 40 | 987.nine | 1317.2 | 1347.1 | 1586.half-dozen | 1796.2 | 1856.1 |
| 48 | 1185.v | 1580.6 | 1616.5 | 1903.ix | 2155.4 | 2227.two |
| 56 | 1383.0 | 1844.0 | 1886.0 | 2221.2 | 2514.6 | 2598.iv |
| 64 | 1580.six | 2107.v | 2155.iv | 2538.6 | 2873.9 | 2969.7 |
| aneFrom Nelson, P.Five. 1998. Greenhouse Operations and Management, fifth ed. Published past Prentice Hall, Inc. Reprinted with permission. | ||||||
| Table 13B. Parts per million of desired nutrient to ounces of fertilizer carrier in 100 gallons of water and vice versa1 | ||||||||
| Grams of Fertilizer Carrier in i Liter | PPM of Desired Food in Fertilizer Carrier | |||||||
| 0.ane | 12 | 13 | 14 | 16 | 16 | 20 | xx.5 | 21 |
| 0.2 | 24 | 26 | 28 | 31 | 3 | 40 | 41.0 | 42 |
| 0.3 | 36 | 39 | 42 | 47 | 48 | lx | 61.5 | 63 |
| 0.four | 48 | 52 | 56 | 62 | 64 | fourscore | 82.0 | 84 |
| 0.6 | 72 | 78 | 84 | 93 | 96 | 120 | 123.0 | 126 |
| 0.eight | 96 | 104 | 112 | 124 | 128 | 160 | 164.0 | 168 |
| 1.0 | 120 | 130 | 140 | 155 | 160 | 200 | 205.0 | 210 |
| i.5 | 180 | 195 | 210 | 233 | 240 | 300 | 307.0 | 315 |
| 2.0 | 240 | 260 | 280 | 310 | 320 | 400 | 410.0 | 420 |
| 2.5 | 300 | 325 | 350 | 388 | 400 | 500 | 512.v | 525 |
| 3.0 | 360 | 390 | 420 | 465 | 480 | 600 | 615.0 | 630 |
| 3.5 | 420 | 455 | 490 | 543 | 560 | 700 | 717.5 | 735 |
| 4.0 | 480 | 520 | 560 | 620 | 640 | 800 | 820.0 | 840 |
| 1From Nelson, P.5. 1998. Greenhouse Operations and Management, 5th ed. Published past Prentice Hall, Inc. Reprinted with permission. | ||||||||
| Tabular array 13B. Parts per million of desired nutrient to grams of fertilizer carrier in i liter water and vice versa1 (cont) | ||||||
| Grams of Fertilizer Carrier in 1 Liter | PPM of Desired Food in Fertilizer Carrier | |||||
| 0.1 | 33 | 44 | 45 | 53 | 60 | 62 |
| 0.2 | 66 | 88 | xc | 106 | 120 | 124 |
| 0.iii | 99 | 132 | 135 | 159 | 180 | 186 |
| 0.4 | 132 | 176 | 180 | 212 | 240 | 248 |
| 0.6 | 198 | 264 | 270 | 318 | 360 | 372 |
| 0.viii | 264 | 352 | 360 | 424 | 480 | 496 |
| ane.0 | 330 | 440 | 450 | 530 | 600 | 620 |
| i.5 | 495 | 660 | 675 | 795 | 900 | 930 |
| 2.0 | 660 | 880 | 900 | 1060 | 1200 | 1240 |
| 2.5 | 825 | 1100 | 1125 | 1325 | 1500 | 1550 |
| three.0 | 990 | 1320 | 1350 | 1590 | 1800 | 1860 |
| 3.v | 1155 | 1540 | 1575 | 1855 | 2100 | 2170 |
| four.0 | 1320 | 1760 | 1800 | 2120 | 2400 | 2480 |
| aneFrom Nelson, P.Five. 1998. Greenhouse Operations and Management, fifth ed. Published by Prentice Hall, Inc. Reprinted with permission. | ||||||
| Table 14. Conversion factors among electrical conductivity (EC) unitsone | ||
| From | To | Multiply by: |
| mmhos/cm or mS/cm or dS/cm | mhos 10 10-5/cm | 100 |
| mhos 10 10-5/cm | mmhos/cm or mS/cm or dS/cm | 0.01 |
| mmhos/cm or mS/cm or dS/cm | ∝mhos or mhos x ten-6 | yard |
| ∝mhos or mhos x x-six | mmhos/cm or mS/cm or dS/cm | 0.001 |
| mmhos/cm or mS/cm or dS/cm | ppm | 6702 |
| ppm | mmhos/cm or mS/cm or dS/cm | 0.00149252 |
| mhos ten x-v/cm | ppm | half-dozen.702 |
| ppm | mhos x 10-5/cm | 0.149252 |
| ∝mhos or mhos x ten-6 | ppm | 0.67022 |
| ppm | ∝mhos or mhos 10 x-6 | 1.49252 |
| 1 Adjusted from T.J. Cavins, et al., 2000. 2 Some labs report EC in terms of ppm or convert EC to ppm. Although 670 is the basis used in this instance, the conversion factor can vary between 640 and 700. This conversion gene is an average due to the variability in the type of fertilizer salts that contribute to the substrate EC in each sample, and it should be considered a broad approximation. Expressing EC in terms of mS/cm or mhos/cm is the preferred method. | ||
Tabular array xv is designed to help growers decide which acid to add and in what quantities to acidify their irrigation water.
| Table xv. Various acids to add to irrigation water for acidificationone | ||||||
| Annotation: The table is an example from software called Alkalinity Calculator, available at world wide web.ces.ncsu.edu/depts/hort/floriculture/software/alk.html. It is an acidification analysis done on a water sample with a starting pH of 8.0 and alkalinity of 200 ppm CaCO3 acidified to an terminate signal pH of 5.8. For your specific h2o sample, download the Alkalinity Calculator and follow the directions listed on the website. You will need to obtain a h2o report on your irrigation water prior to running the software. Yous will need to know the water pH and alkalinity of your sample and have an idea about what end-indicate pH y'all want to obtain after acidification. The software also gives you information about the cost of the acidification treatment. | ||||||
| ALTERNATIVE ACIDS TO ADD TO IRRIGATION H2o | ||||||
| Amounts | Acids | |||||
| Phosphoric Acid (75%) | Phosphoric Acrid (85%) | Sulfuric Acid (35%) | Sulfuric Acid (93%) | Nitric Acid (61.4%) | Nitric Acid (67%) | |
| For Pocket-sized Volumes | ||||||
| ml per liter | 0.253 | 0.207 | 0.348 | 0.087 | 0.234 | 0.209 |
| fl oz per gallon | 0.032 | 0.027 | 0.044 | 0.011 | 0.030 | 0.027 |
| ml per gallon | 0.956 | 0.785 | 1.316 | 0.330 | 0.884 | 0.793 |
| For a 1:100 Injector | ||||||
| fl oz per gallon (conc.) | 3.23 | 2.65 | four.45 | 1.12 | two.99 | 2.68 |
| ml per gallon (conc.) | 95.63 | 78.47 | 131.59 | 32.98 | 88.forty | 79.28 |
| For a i:128 Injector | ||||||
| fl oz per gallon (conc.) | iv.14 | 3.40 | v.lxx | ane.43 | 3.83 | 3.43 |
| ml per gallon (conc.) | 122.41 | 100.44 | 168.44 | 42.22 | 113.16 | 101.48 |
| For a ane:200 Injector | ||||||
| fl oz per gallon (conc.) | 6.47 | five.31 | viii.ninety | two.23 | 5.98 | five.36 |
| ml per gallon (conc.) | 191.27 | 156.94 | 263.19 | 65.97 | 176.81 | 158.56 |
| NUTRIENTS ADDED By EACH Type OF Acid | ||||||
| Nutrients Added | Phosphorus | Phosphorus | Sulfur | Sulfur | Nitrogen | Nitrogen |
| Amount Added (ppm) | 94.6 | 94.6 | l.3 | l.3 | 43.7 | 43.seven |
| Use the information above for modifying your fertility program. | ||||||
Tables sixteen through 20 help determine which fertilizers to use based on chemical analysis, reaction in substrate, longevity in substrate (slow release fertilizers), and incorporation rates for some popular slow release fertilizers. Tables 17 and xviii are specifically designed to provide detailed data on fertilizer calculations, which as well assist make up one's mind correct application rates.
| Tabular array 16. Amounts of nutrient sources to combine in making diverse fertilizer formulasone | ||||||||||||
| Fertilizer Proper name | Nutrient Sources2 | |||||||||||
| Assay | 33 -0 -0 | thirteen -0 -44 | 15.5 -0 -0 | xvi -0 -0 | 21 -0 -0 | 45 -0 -0 | 0 -0 -60 | 12 -62 -0 | 21 -53 -0 | % of North as NH4 + Urea | Reaction in Substrate4 | |
| Ammonium nitrate | 33-0-0 | X | 50 | A | ||||||||
| Potassium nitrate | 13-0-44 | X | 0 | North | ||||||||
| Calcium nitrate | 15.5-0-0 | 10 | 6 | B | ||||||||
| Sodium nitrate | 16-0-0 | X | 0 | B | ||||||||
| Ammonium sulfate | 21-0-0 | X | 100 | A | ||||||||
| Urea | 45-0-0 | X | 100 | SA | ||||||||
| Potassium chloride | 0-0-60 | X | - | N | ||||||||
| Monoammonium phosphate | 12-62-0 | X | 100 | A | ||||||||
| Diammonium phosphate3 | 21-53-0 | X | 100 | SA | ||||||||
| Magnesium nitrate | 10-0-0 | 0 | B | |||||||||
| Chrysanthemum green | 18-0-22 | 1 | 2 | 1 | 47 | A | ||||||
| General Summer | 20-10-24 | one | ane | 2 | 1 | 83 | A | |||||
| General low phosphate | 21-4-20 | 7 | four | 1 | 55 | A | ||||||
| General summer | 21-17-xx | i | ii | iii | 3 | 90 | A | |||||
| Full general | 17-6-27 | 4 | 4 | one | 57 | A | ||||||
| UConn Mix | 19-5-24 | half-dozen | two | two | 1 | 49 | N | |||||
| Editor'south favorite | xx-5-30 | 13 | 4 | 2 | 57 | SA | ||||||
| xx-20-twenty substitute | xx-20-22 | four | 1 | 3 | 67 | SA | ||||||
| Starter and pink hydrangea | 12-41-15 | 1 | ii | 65 | SA | |||||||
| Starter and pink hydrangea | 17-35-sixteen | 1 | 4 | 10 | 100 | SA | ||||||
| Northward-K only | xvi-0-24 | 2 | 1 | two | 40 | SA | ||||||
| N-K merely | 20-0-xxx | ane | ii | 28 | SA | |||||||
| Blue hydrangea | 13-0-22 | 2 | i | 100 | VA | |||||||
| Blue hydrangea | 15-0-15 | iii | 1 | 100 | VA | |||||||
| Acid | 21-9-ix | 3 | 1 | 7 | i | 2 | 79 | VA | ||||
| Spring carnation | 10-0-17 | v | 2 | 0 | B | |||||||
| Winter nitrate | 15-0-15 | one | two | 5 | B | |||||||
| Winter potash | 15-0-22 | 1 | 1 | 4 | B | |||||||
| Lily substitute | 16-4-12 | i | iv | 6 | 1 | 22 | N | |||||
| Loftier K | 15-x-xxx | 7 | 1 | 2 | 28 | N | ||||||
| iFrom Nelson, P.V. 1998. Greenhouse Operations and Direction, 5th ed. Published past Prentice Hall, Inc. Reprinted with permission. 2For names of nutrient sources, encounter the offset ix entries in the Name column. threeDiammonium phosphate may exist pelletized and coated. To dissolve, utilise very hot water and stir vigorously. Sediment formation should not cause concern. Employ crystalline potassium chloride if possible. 4B = basic; North = neutral; SA = slightly acid; A = acid; VA = very acid. Note: For example, an 18-0-22 formula fertilizer tin be formulated by blending together ane lb of ammonium nitrate plus 2 lbs of potassium nitrate plus 1 lb of ammonium sulfate. This formulation is determined by locating the 18-0-22 formula in the Assay column. And then the three numbers i, 2 and 1 are located in the row subsequently this formula. Each of the three numbers is traced to the X above information technology and then to the nutrient source to the left of the X. | ||||||||||||
| Tabular array 17. Formulas for additional fertilizer calculations | ||
| Compound | Formula | Weight |
| Ammonium Nitrate Ammonium Sulfate Calcium Nitrate Potassium Nitrate Potassium Chloride Potassium Sulfate Urea | NHivNO3 (NH4)2SO4 Ca(NO3)ii KNO3 KCl M2So4 CO(NH2)2 | 80.8 132.0 164.0 101.1 74.6 174.2 sixty.0 |
| Element | Symbol | Atomic Weight |
| Calcium Carbon Chlorine Hydrogen Nitrogen Oxygen Phosphorus Potassium | Ca C Cl H N O P k | twoscore.1 12.0 35.5 1.0 xiv.0 16.0 31.0 39.1 |
Using Chemicals
1)
mg of fertilizer source/liter of water = (ppm)(formula weight) (atomic weight of element)(number of units in formula of fertilizer source)
2)
ppm = (mg of fertilizer/liter of water)(atomic weight of element)(number of units of element in formula of fertilizer source) (formula weight of fertilizer source)
3) to catechumen mg/fifty to lbs/100 gal, multiply mg by 0.0008344
iv) to convert lbs/100 gal to mg/l, divide lbs by 0.0008344
EXAMPLE: How many pounds of potassium sulfate (10002And theniv) need to be dissolved in 100 gallons of water to make 100 ppm G solution. Get the formula weight of potassium sulfate (MiiSO4) and the atomic weight of potassium from Table 14. Then:
1) mg of Thousand2SO4 / liter of water = (100 x 174.2) ÷ (39.1 x 2) = 222.8 mg/L
ii) 222.8 mg/Fifty 10 0.00083440 = 0.186 lbs potassium sulfate/100 gal
Using Premixed Fertilizers
1)
mg of mixed fertilizer/liter of h2o = (ppm of N desired)(100) (% N in fertilizer)
2)
ppm of P = (mg of mixed fertilizer/liter of h2o)(% P2O5)(0.4366) 100
3)
ppm of K = (mg of mixed fertilizer/liter of water) (% M2O) (0.8301) 100
4)
mg of mixed fertilizer/liter of water = (ppm of P desired)(100) (% P2Ofive)(0.4366)
5)
mg of mixed fertilizer/liter of water = (ppm of 1000 desired)(100) (% MtwoO) (0.8301)
6)
mg of mixed fertilizer/liter of water = (mg of mixed fertilizer/liter of water)(% N) 10
| Table 18. Miscellaneous conversions used in fertilizer calculations | ||
| 1 millimeter or cubic centimeter of water weighs one gram | ||
| 1 liter of water weighs 1 kilogram | ||
| 1 gallon of h2o weighs 8.34 pounds | ||
| 1 part per million (ppm) 1 part per million 1 part per meg | = 0.0001 percent = 1 milligram/liter =0.013 ounces in 100 gallons of water | |
| ane pct 1 percent 1 pct 1 percent one percent | = 10,000 ppm = ten grams per liter = ten,000 grams per kilogram = 1.33 ounces by weight per gallon of water = 8.34 pounds per 100 gallons of h2o | |
| 0.1 percent 0.01 percent 0.001 percentage 0.0001 percent | = 1000 ppm = 100 ppm = 100 ppm = 100 ppm | = one thousand milligrams per liter = 100 milligrams per liter = 10 milligrams per liter = 1 milligram per liter |
| Approximate weight-volume measurements for making small volumes of water soluble fertilizers | ||
| i cup | = 8 oz or 0.v lbs of fertilizer | |
| 2 cups | = 1 lb of fertilizer | |
| 1 tablespoon | = 0.5 oz of fertilizer | |
| 2 tablespoons | = 1 oz of fertilizer | |
| Useful conversions | ||
| 1 ton/acre | = twenty.eight grams/foursquare foot | |
| i ton/acre | = 1 lb/21.78 square feet | |
| 1 gram/foursquare foot | = 96 lbs/acre | |
| ane lb/acre | = 0.0104 g/foursquare foot | |
| 100 lbs/acre | = 0.2296 lbs/100 square feet | |
| grams/square foot x 96 | = lbs/acre | |
| lbs/square foot 10 43,560 | = lbs/acre | |
| 100 square feet | = one/435.half-dozen or 0.002296 acres | |
| Weight conversions from lbs/acre to weight/100 foursquare feet | ||
| lbs/acre | amount applied/100 square feet | |
| 100 | iii.7 oz | |
| 200 | 7.4 oz | |
| 300 | 11.1 oz | |
| 400 | 14.8 oz | |
| 500 | 1 lb 2.5 oz | |
| 600 | 1 lb six oz | |
| 700 | 1 lb x oz | |
| 800 | 1 lb 13 oz | |
| 900 | 2 lb 1 oz | |
| 1000 | 2 lb 5 oz | |
| 2000 | 4 lb 10 oz | |
| Percent to Ratio Conversion | ||
| 2.0% | 1:l | |
| 1.5% | 1:67 | |
| 1.0% | 1:100 | |
| 0.nine% | ane:111 | |
| 0.viii% | 1:128 | |
| 0.vii% | 1:143 | |
| 0.6% | 1:167 | |
| 0.5% | 1:200 | |
| 0.four% | 1:250 | |
| 0.3% | 1:333 | |
| 0.two% | ane:500 | |
| Table19. Osmocote® controlled-release fertilizers and their release periodsone | ||
| Analysis | Longevity2 (months) | Product Proper noun |
| 14-14-14 | three-iv | Osmocote®3 |
| 19-6-12 | iii-4 | Osmocote®3 |
| thirteen-13-13 | eight-ix | Osmocote®3 |
| 18-half dozen-12 | 8-9 | Osmocote®iii Fast Commencement |
| 18-half-dozen-12 | eight-9 | Osmocote®three |
| 17-7-12 | 12-14 | Osmocote®iii |
| 15-9-12 | 3-4 | Osmocote® Plus |
| 15-ix-12 | 5-6 | Osmocote® Plus |
| 15-ix-12 | 8-9 | Osmocote® Plus |
| 15-9-12 | 12-14 | Osmocote® Plus |
| 15-nine-12 | fourteen-16 | Osmocote® Plus |
| 16-8-12 | 8-nine | Osmocote® Plus Minors Tablets |
| nineteen-5-viii + Minors | 8-9 | Osmocote® Pro with Poly-S |
| nineteen-v-9 + Minors | 12-xiv | Osmocote® Pro with Poly-Southward |
| xx-5-8 + Minors | eight-9 | Osmocote® Pro with Poly-S |
| 24-four-8 | 8-9 | Osmocote® Pro with Resin Coated Urea |
| 24-4-7 | 12-14 | Osmocote® Pro with Resin Coated Urea |
| 24-iv-half-dozen | 14-16 | Osmocote® Pro with Resin Coated Urea |
| 21-4-7 w/ Mg & Fe | 8-9 | Osmocote® Pro with Resin Coated Urea |
| 21-3-7 w/ Mg & Fe | 12-xiv | Osmocote® Pro with Resin Coated Urea |
| 22-4-ix + Minors | 5-6 | Osmocote® Pro with Resin Coated Urea |
| 22-four-8 + Minors | 8-9 | Osmocote® Pro with Resin Coated Urea |
| 22-4-7 + Minors | 12-xiv | Osmocote® Pro with Resin Coated Urea |
| 22-4-6 + Minors | fourteen-16 | Osmocote® Pro with Resin Coated Urea |
| 20-4-9 | 8-9 | Osmocote® Pro with Methylene Urea and Ureaform |
| 20-four-8 | 12-fourteen | Osmocote® Pro with Methylene Urea and Ureaform |
| 23-4-8 + Minors | 14-16 | Osmocote® Pro + ScottKote™ |
| 19-7-10 + Iron | 3-four | Osmocote® Pro with Uncoated NPK and Iron |
| eighteen-7-10 + Fe | viii-9 | Osmocote® Pro with Uncoated NPK and Fe |
| 17-7-10 + Atomic number 26 | 12-14 | Osmocote® Pro with Uncoated NPK and Fe |
| 13-10-thirteen | five-6 | Osmocote® Pro with IBDU and Minors |
| 15-10-10 | eight-9 | Osmocote® Pro with IBDU and Minors |
| 18-8-viii | 8-9 | Osmocote® Pro with IBDU and Minors |
| 20-4-8 | eight-9 | Osmocote® Pro with IBDU and Minors |
| eighteen-5-9 | 12-14 | Osmocote® Pro with IBDU and Minors |
| 17-6-12 + Minors | 3-4 | Sierra® Tablets |
| 17-6-10 + Minors | viii-nine | Sierra® Tablets |
| 1 From the Scotts Company and Subsidiaries, Marysville, OH 43041. 2 At an average root substrate temperature of 70 degrees F (21 degrees C). 3 Half dozen trace elements plus magnesium. | ||
| Tabular array twenty. Rates in lb/ydiii (kg/m3) for incorporation of iii of the most pop formulations of Nutricote into greenhouse root substrates1 | ||||||
| Release Type (daysthree) | Sensitive Crops | Medium-Feeding Crops | Heavy-Feeding Crops | |||
| xiii-13-13 | ||||||
| 70 | 2.5 | (1.v) | five | (3.0) | 8.5 | (5.1) |
| 100 | 3.5 | (2.ane) | ||||
| 140 | 5 | (3.0) | 9 | (5.four) | 13 | (seven.8) |
| 180 | half dozen | (three.6) | 11 | (6.6) | 17 | (10.ii) |
| 270 | 8 | (iv.8) | 13 | (7.8) | 21 | (12.six) |
| 360 | 11 | (vi.vi) | 15 | (9.0) | 25 | (15.0) |
| fourteen-xiv-14 | ||||||
| 40 | 2 | (ane.two) | 5 | (three.0) | 8 | (4.7) |
| seventy | four | (2.4) | nine | (5.4) | 14 | (8.three) |
| 100 | 5 | (3.0) | 12 | (7.1) | 20 | (11.9) |
| 140 | viii | (4.7) | fifteen | (9.0) | 22 | (13.0) |
| 180 | 12 | (7.1) | 20 | (11.9) | 28 | (sixteen.6) |
| 270 | sixteen | (nine.five) | 24 | (fourteen.2) | 32 | (xix.0) |
| 360 | twenty | (11.9) | 28 | (xvi.six) | 36 | (21.3) |
| 18-6-8 | ||||||
| seventy | 2 | (1.2) | 4.v | (ii.7) | vii.v | (4.5) |
| 100 | iii | (1.8) | six.5 | (iii.9) | 11 | (half dozen.6) |
| 140 | four.5 | (2.7) | 8 | (4.eight) | 12 | (vii.2) |
| 180 | vi | (3.vi) | 11 | (half-dozen.6) | 14 | (8.4) |
| 270 | 8 | (4.8) | xiii | (7.eight) | 16 | (12.0) |
| 360 | 11 | (6.6) | 15 | (9.0) | eighteen | (13.8) |
| 1 From Nelson, P.V. 1998. Greenhouse Operations and Management, 5th  ed. Published by Prentice Hall, Inc. Reprinted with permission. | ||||||
Tables 21 through 22 are designed to assist growers in correcting the pH of the growing substrate.
| Table 21. Materials and rates necessary to lower the pH level of greenhouse potting substrate 0.v to one.0 units1 | |||
| Material | Pounds to contain in lbs/ydthree | Pounds to dissolve in 100 gal waterii | Rate of change in pH |
| Aluminum sulfate | 1.5 | 6.0 | Rapid |
| Fe sulfate | 1.v | 6.0 | Moderate |
| Finely ground elemental sulfur | 0.75 | - | Slow |
| 1 Adjusted from Bailey, D.A. 1996. 2 Apply this deluge as a normal watering, about 1 quart per foursquare foot or 8 fluid ounces per 6-inch pot. | |||
| Table 22. Estimate amount of materials required to change pH of peat-based potting mixesi | ||
| Outset pH | Pounds per cubic yard to modify acerbity to pH five.7 for: | |
| 50% Peat 50% Moss | 100% Peat | |
| 7.52 | two.0 | 3.4 |
| 7.0 | one.5 | ii.five |
| 6.v | 1.0 | 2.0 |
| five.03 | two.v | 3.five |
| four.v | 5.six | vii.4 |
| 4.0 | 7.9 | 11.5* |
| 3.5 | ten.5* | 15.58 |
| 1 Adapted from Conover, C.A., and R.T. Poole. 1984. 2 Add sulfur or acidifying mixture to lower pH to 5.7. three Add dolomitic lime or equivalent corporeality of calcium to heighten pH to v.7. * Addition of more than than 10 pounds of dolomitic per ydiii tin can cause micro-nutrient deficiencies. | ||
Table 23 will help when applying various institute growth regulators.
| Tabular array 23A. Dilution/conversion chart for A-REST (0.0264% active ingredient)ane | |||||
| Spray | |||||
| Spray Solution (ppm) | Fluid Ounces per Gallon of Final Solution | Milliliters per Gallon of Final Solution | Milliliters per Liter of Final Solution | ||
| 1 | 48 | 14.34 | 3.79 | ||
| 3 | one.45 | 43.02 | xi.36 | ||
| 10 | 4.85 | 143.39 | 37.88 | ||
| 25 | 12.12 | 358.47 | 94.70 | ||
| fifty | 24.24 | 716.93 | 189.39 | ||
| 75 | 36.36 | 1075.40 | 284.09 | ||
| 100 | 48.48 | 1433.87 | 378.79 | ||
| Drench | |||||
| Dose (Milligrams per 6-in Pot) | Deluge Volume per 6-in Pot* (Fluid Ounces) | ppm solution | Fluid Ounces per Gallon of Concluding Solution | Milliliters per Gallon of Terminal Solution | Milliliters per Liter of Final Solution |
| 0.125 | 4 | 1.06 | 0.51 | 15.15 | 4.0 |
| 0.25 | 4 | ii.11 | 1.02 | 30.30 | eight.01 |
| 0.50 | iv | four.23 | 2.05 | 60.61 | 16.01 |
| 0.75 | 4 | 6.34 | 3.07 | 90.91 | 24.02 |
| 1.00 | 4 | eight.45 | four.10 | 121.21 | 32.02 |
| 1Adapted from Hammer, P.A. 1992. *two fl oz/4-in pot; 3 fl oz/v-in pot; x fl oz/8-in pot | |||||
| Table 23B. Dilution/conversion nautical chart for CYCOCEL (11.8% active ingredient)1 | |||||
| Spray | |||||
| Spray Solution (ppm) | Fluid Ounces per Gallon of Final Solution | Milliliters per Gallon of Final Solution | Milliliters per Liter of Concluding Solution | ||
| ane,000 | 1.08 | 32.08 | 8.47 | ||
| one,500A | one.63 | 48.12 | 12.71 | ||
| 2,000 | 2.17 | 64.sixteen | xvi.95 | ||
| 2,500 | 2.71 | 80.20 | 21.19 | ||
| 3,000B | iii.25 | 96.24 | 25.42 | ||
| v,000 | 5.42 | 160.forty | 42.37 | ||
| Drench | |||||
| Dose (Milligrams per 6-in Pot) | Drench Volume per 6-in Pot* (Fluid Ounces) | ppm solution | Fluid Ounces per Gallon of Final Solution | Milliliters per Gallon of Final Solution | Milliliters per Liter of Final Solution |
| 355 | six | 2,000 | 2.17 | 64.18 | 16.95 |
| 532 | 6 | 3,000B | 3.25 | 96.18 | 25.42 |
| 710 | 6 | 4,000 | 4.34 | 128.36 | 33.90 |
| 1Adapted from Hammer, P.A. 1992. ACommonly referred to equally 1:eighty. BUnremarkably referred to as one:40. *2 fl oz/2.25- to three-in pot; 3 fl oz/iv-in pot; 4 fl oz/v-in pot; viii fl oz/eight-in pot. | |||||
| Table 23C. Dilution/conversion nautical chart for B-NINE WSG (85% active ingredient)1 | |||
| Spray | |||
| Spray Solution (ppm) | Ounces per Gallon of Final Solution | Grams per Gallon of Last Solution | Grams per Liter of Final Solution |
| one,000 | 0.16 | 4.45 | 1.xviii |
| ii,500 | 0.39 | 11.13 | 2.94 |
| 5,000 | 0.79 | 22.26 | five.88 |
| vii,500 | ane.18 | 33.forty | viii.82 |
| oneAdapted from Hammer, P.A. 1992. | |||
| Table 23D. Dilution/conversion nautical chart for BONZI (0.4% active ingredient)1 | |||||
| Spray | |||||
| Spray Solution (ppm) | Fluid Ounces per Gallon of Final Solution | Milliliters per Gallon of Final Solution | Milliliters per Liter of Final Solution | ||
| one | 0.032 | 0.95 | 0.25 | ||
| 3 | 0.096 | 2.84 | 0.75 | ||
| five | 0.160 | 4.73 | 1.25 | ||
| 10 | 0.320 | 9.46 | 2.50 | ||
| 15 | 0.480 | xiv.xx | 3.75 | ||
| 25 | 0.800 | 23.66 | 6.25 | ||
| 45 | 1.440 | 42.59 | 11.25 | ||
| threescore | 1.920 | 56.78 | fifteen.00 | ||
| 90 | 2.880 | 85.17 | 22.l | ||
| Deluge | |||||
| Dose (Milligrams per half-dozen-in Pot) | Drench Volume per 6-in Pot* (Fluid Ounces) | ppm | Fluid Ounces per Gallon of Terminal Solution | Milliliters per Gallon of Final Solution | Milliliters per Liter of Final Solution |
| 0.ane | four | 0.85 | 0.03 | 0.8 | 0.21 |
| 0.2 | 4 | 1.69 | 0.05 | i.6 | 0.42 |
| 0.5 | 4 | iv.23 | 0.14 | 4.0 | one.06 |
| 1.0 | iv | 8.45 | 0.27 | 8.0 | two.11 |
| ane.9 | four | xvi.06 | 0.51 | 15.two | 4.02 |
| 1Adapted from Hammer, P.A. 1992. * ii fl oz/4-in pot; iii fl oz/5-in pot; 10 fl oz/eight-in pot. | |||||
| Tabular array 23E. Dilution/conversion chart for SUMAGIC (0.055% active ingredient)one | |||||
| Spray | |||||
| Spray Solution (ppm) | Fluid Ounces per Gallon of Final Solution | Milliliters per Gallon of Terminal Solution | Milliliters per Liter of Last Solution | ||
| one | 0.26 | 7.57 | 2 | ||
| three | 0.77 | 22.71 | 6 | ||
| five | 1.28 | 37.85 | x | ||
| 10 | two.56 | 75.71 | xx | ||
| 15 | 3.84 | 113.56 | 30 | ||
| 25 | 6.40 | 189.27 | l | ||
| 30 | 7.68 | 227.12 | 60 | ||
| 50 | 12.80 | 378.54 | 100 | ||
| Drench | |||||
| Dose (Milligrams per 6-in Pot) | Drench Volume per half dozen-in Pot* (Fluid Ounces) | ppm | Fluid Ounces per Gallon of Final Solution | Milliliters per Gallon of Final Solution | Milliliters per Liter of Final Solution |
| 0.02 | 4 | 0.17 | 0.04 | ane.28 | 0.34 |
| 0.03 | four | 0.25 | 0.06 | 1.92 | 0.51 |
| 0.04 | 4 | 0.34 | 0.09 | 2.56 | 0.68 |
| 0.05 | 4 | 0.42 | 0.11 | three.xx | 0.85 |
| 0.06 | 4 | 0.51 | 0.13 | 3.84 | 1.01 |
| 0.09 | iv | 0.76 | 0.19 | v.76 | 1.52 |
| 0.12 | four | ane.01 | 0.26 | 7.68 | 2.03 |
| 0.20 | four | i.69 | 0.43 | 12.eighty | 3.38 |
| 1Adapted from Hammer, P.A. 1992. * 2 fl oz/4-in pot; iii fl oz/5-in pot; 10 fl oz/8-in pot. | |||||
| Tabular array 23F. Dilution/conversion nautical chart for FLOREL (iii.9% active ingredient)i | |||
| Spray | |||
| Spray Solution (ppm) | Fluid Ounces per Gallon of Last Solution | Milliliters per Gallon of Final Solution | Milliliters per Liter of Final Solution |
| 300 | 0.97 | 28.72 | 7.59 |
| 325 | 1.05 | 331.xi | viii.22 |
| 500 | 1.62 | 47.86 | 12.64 |
| 750 | ii.43 | 28.89 | 18.97 |
| 975 | 3.xvi | 93.34 | 24.66 |
| 1,000 | iii.24 | 95.73 | 25.29 |
| 1Adapted from Hammer, P.A. 1992. | |||
| Tabular array 23G. Dilution/conversion chart for PRO-GIBB (iv% active ingredient)i | |||
| Spray | |||
| Spray Solution (ppm) | Fluid Ounces per Gallon of Concluding Solution | Milliliters per Gallon of Final Solution | Milliliters per Liter of Last Solution |
| 2.5 | 0.008 | 0.24 | 0.06 |
| v.0 | 0.016 | 0.47 | 0.13 |
| 100.0 | 0.320 | nine.46 | ii.50 |
| 250.0 | 0.800 | 23.66 | half dozen.25 |
| 300.0 | 0.960 | 28.39 | 7.50 |
| 500.0 | i.600 | 47.31 | 12.50 |
| iAdjusted from Hammer, P.A. 1992. | |||
| Table 23H. Dilution/conversion chart for FASCINATION1 | |||
| Spray | |||
| ppm BA/GA | Fluid Ounces per Gallon of Concluding Solution | Milliliters per Gallon of Concluding Solution | Milliliters per Liter of Last Solution |
| 1/1 | 0.007 | 0.2 | 0.06 |
| 5/v | 0.04 | i.one | 0.iii |
| ten/10 | 0.07 | two.one | 0.vi |
| 25/25 | 0.18 | five.3 | one.4 |
| 50/50 | 0.36 | ten.5 | 2.8 |
| 75/75 | 0.53 | 15.eight | 4.two |
| 100/100 | 0.71 | 21.0 | 5.5 |
| 1Adjusted from Hammer, P.A. 1992. | |||
Tables 24 through 25 are designed to assist growers who desire to prepare their own substrate mix.
| Tabular array 24. Pre-plant fertilizer sources and rates of applicationi,2 | |||
| Nutrient Source | Rate per Cubic K (per yard3) | ||
| Soil-Based Media | Soilless Media | ||
| To provide calcium and magnesium | |||
| When a pH rise is desired: | Dolomitic limestone | 0-ten lbs (0-half dozen kg) | ten lbs (6 kg) |
| When no pH shift is desired: | Gypsum for calcium | 0-v lbs (0-3 kg) | 0-5 lbs (0-3 kg) |
| Epsom salt for magnesium | 0-1 lbs (0-0.6 kg) | 0-one lb (0-0.6 kg) | |
| To provide phosphorus* | |||
| Superphosphate (0-45-0) | 1.five lb (0.9 kg) | 2.25 lbs (1.three kg) | |
| To provide sulfur | |||
| Gypsum (calcium sulfate) | 1.five lbs (0.ix kg) | 1.v lbs (0.9 kg) | |
| To provide micronutrients: iron, manganese, zinc, copper, boron, molybdenum | |||
| Esmigran | 3-six lbs (one.viii-three.6 kg) | three-6 lbs (1.8-3.6 kg) | |
| Micromax | 1-1.5 lbs (0.half-dozen-0.9 kg) | 1-1.5 lb (0.six-0.9 kg) | |
| Promax | 1-one.5 lbs (0.6-0.nine kg) | 1-i.5 lb (0.half-dozen-0.9 kg) | |
| F-555HF | three oz (112 g) | 3 oz (112 g) | |
| F-111HR | 1 lb (0.6 kg) | 1 lb (0.6 kg) | |
| To provide nitrogen and potassium (optional) | |||
| Calcium nitrate, or | 1 lb (0.vi kg) | 1 lb (0.half dozen kg) | |
| Potassium nitrate | 1 lb (0.6 kg) | one lb (0.6 kg) | |
| 1From Nelson, P.V. 1998. Greenhouse Operations and Management, 5th ed. Published by Prentice Hall, Inc. Reprinted with permission. 2Rates in this table are for crops other than seedlings. Only limestone is necessary in seedling substrates. Optional nutrient sources for seedling substrate include upwards to 1 lb (0.6 kg) each of superphosphate, gypsum, and calcium nitrate; no potassium nitrate; and the low end of the charge per unit range for micronutrients. *These are maximum rates designed to supply phosphorus for three to iv months if pH is maintained in a desirable range for the crop and the leaching percent is at or below 20 percent. | |||
| Table 25. Cornell Peat-Low-cal Mix A for seedlings, bedding plants and potted plants* | ||
| Materials Used | Amount per Cubic Yard1 | Amount per Bushel |
| Spagnum peat moss | 0.five cubic one thousand (thirteen bushels) | 0.5 bushel |
| Horticultural grade vermiculite #ii size for seed germination #2 or 3 for transplanting | 0.v cubic yard (13 bushels) | 0.v bushel |
| Superphosphate, or | 1 to 2 pounds | 20.v to 41.0 grams (one to 2 tablespoons) |
| Treble superphosphate2 | 0.5 to 1 pound | 10.3 to 20.five grams (0.vi to 1.2 tablespoons) |
| Basis dolomitic limestoneii | 5 to 10 pounds | 103 to 206 grams (5.2 to 10.4 tablespoons) |
| Gypsum2 | 2.0 pounds | 41 grams (2.v tablespoons) |
| Calcium nitrate | 0.5 pound | 10 grams (i.2 tablespoons) |
| Potassium nitrate | 0.5 pound | 10 grams (1.2 tablespoons) |
| Trace element material (Use Only Ane) | ||
| Esmigran, or | 4.0 pounds | 81 grams (4.0 tablespoons) |
| Micromax | ane.5 pounds | 31 grams (i.7 tablespoons) |
| Wetting agent (Use Only One3) | ||
| Aqua-Gro 2000 granular, or | 1.0 pound | --- |
| Aqua-Gro 2000-L liquid4 | three-5 fluid ounces | 0.5 level teaspoon |
| PsiMatric liquid5 | 2-4 fluid ounces | 0.five level teaspoon |
| 1A cubic grand equals 27 cubic feet or approximately 22 bushels. A 15 to twenty percent shrink occurs in mixing. Therefore, an additional 5 cubic feet or 4 bushels are used to obtain a full cubic chiliad. twoIf treble superphosphate is used, gypsum is added to supply sulphur. If just five pounds of limestone are used for pH control, then add the gypsum that supplied calcium and sulphur. iiiThe granular Aqua-Grow is preferred. iv3 ounces/thou for formation/seedlings, 5 ounces/g for bedding plants and pot plants. 52 ounces/g for germination/seedlings, 4 ounces/yard for bedding plants and pot plants. *Adapted from Fonteno. W.C. 1994 | ||
| Table 28. Coverage estimates for perlite, peat, topsoil and straw | |||||
| Thickness | four cu ft Perlite | 6 cu ft Canadian peat (compressed) | 1 cu yd* Peat mulches, Topsoil, etc. | 1 Bale | |
| Pinestraw | Wheatstraw | ||||
| two in | 28 sq ft | 72 sq ft | 162 sq ft | 90 sq ft | 180 sq ft |
| 1 in | 48 sq ft | 144 sq ft | 324 sq ft | 180 sq ft | 360 sq ft |
| 1/2 in | 96 sq ft | 288 sq ft | 648 sq ft | 360 sq ft | 720 sq ft |
| 1/four in | 192 sq ft | 576 sq ft | 1296 sq ft | 720 sq ft | 1440 sq ft |
| *1 cubic yard (ydiii) = 27 cubic feet (ft3) | |||||
Tables 29 through 30 aid determine correct spacing and number of plants at each spacing for both greenhouse and field situations.
| Table 29. Plant spacing guide (greenhouse) | |||
| Spacing | Plants/sq ft | Plants/A of product surface area | Plants/A of footing covered* |
| 8" x nine" | two.0 | 87,000 | 58,000 |
| viii" x viii" | ii.3 | 98,000 | 65,000 |
| 8" x vii" | 2.6 | 114,000 | 76,000 |
| viii" x 6" | three.0 | 130,000 | 87,000 |
| 6" x 7" | iii.4 | 147,000 | 98,000 |
| 6" 10 6" | four.0 | 174,000 | 116,000 |
| 6" x 5" | 4.8 | 208,000 | 139,000 |
| five" x v" | 5.8 | 252,000 | 168,000 |
| 5" x 4" | 7.2 | 313,000 | 209,000 |
| v" x 3" | 9.half dozen | 418,000 | 279,000 |
| iv" x three" | 12.0 | 522,000 | 348,000 |
| *Assuming 1/three of production surface area devoted to aisles, etc. | |||
| Table thirty. Institute spacing guide (field/orchard)* | ||||||||||||
| Spacing Between Rows of Plants | Spacing Betwixt Plants Within the Row | |||||||||||
| Feet | half dozen | 8 | x | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | |
| 4 | 1815 | 1361 | 1089 | 907 | 777 | 680 | 605 | 544 | 495 | 453 | 418 | |
| 6 | 1218 | 907 | 726 | 605 | 518 | 453 | 403 | 363 | 330 | 302 | 279 | |
| 8 | 907 | 680 | 544 | 453 | 388 | 339 | 302 | 272 | 247 | 226 | 209 | |
| 10 | 726 | 544 | 435 | 362 | 311 | 272 | 242 | 218 | 207 | 181 | 167 | |
| 12 | 605 | 453 | 362 | 302 | 259 | 226 | 201 | 181 | 165 | 151 | 139 | |
| 14 | 518 | 388 | 311 | 259 | 222 | 194 | 172 | 155 | 141 | 129 | 119 | |
| 16 | 453 | 339 | 272 | 226 | 194 | 169 | 151 | 136 | 123 | 113 | 104 | |
| xviii | 403 | 302 | 242 | 201 | 172 | 151 | 134 | 121 | 110 | 100 | 93 | |
| twenty | 363 | 272 | 218 | 181 | 155 | 136 | 121 | 108 | 99 | 90 | 83 | |
| 22 | 330 | 247 | 207 | 165 | 141 | 123 | 110 | 99 | 90 | 82 | 76 | |
| 24 | 302 | 226 | 181 | 151 | 129 | 113 | 100 | 90 | 82 | 75 | 69 | |
| 26 | 279 | 209 | 167 | 139 | 119 | 104 | 93 | 83 | 76 | 69 | 64 | |
| Number of Plants Per Acre | ||||||||||||
| *To make up one's mind the number of plants per acre for spacings not given in the table, multiply the distance in the row by the distance betwixt rows and divide that number into 43,560. | ||||||||||||
Formulas for calculating greenhouse book
These formulas are helpful in determining heating and cooling costs for greenhouses.
For the following formulas:
L = length
W = width
Due westane = width of short bridge
Westtwo = width of long span
He = height from floor to eave
Hr = height from eave to top
Uneven-span greenhouses
Figure 1-A. Formula for calculating uneven-span greenhouse book.
Greenhouse volume in cubic feet = [(W x Hdue east) + ([W1 x Hr] ÷ two) + ([Westwardtwo ten Hr] ÷ 2)] x L
Even-span greenhouses
Figure i-B. Formula for calculating even-span greenhouse volume.
Greenhouse volume in cubic feet = [(Westward x He) + ([Due west x Hr] ÷ 2)] 10 L
Quonset structures
Figure 1-C. Formula for calculating quonset greenhouse volume.
Greenhouse volume in cubic feet = [(Westward x He) + ([3.14 10 Hr²] ÷ 2)] 10 Fifty
Acknowledgments
The authors wish to acknowledge the following sources, certain tables from which were adjusted to apply in this publication.
- Ball RedBook, sixteen ed. 1998. Vic Ball (Ed.) Brawl Publishing.
- Bedding Plants IV. 1994. J. Holcomb (Ed.) Ball Publishing.
- Cornell Recommendations for Commercial Floricultural Crops, Function one. Cultural Practices and Production Programs.
- Greenhouse Operation and Direction, 5th ed. 1998. P. Five. Nelson.
- Hummert's Helphul Hints, 1999-2000 ed. Hummert International.
- Installation and Maintenance of Landscape Plants Bedding Plants. D.A. Bailey and M.A. Powell. 1999. North Carolina Land Academy A&T Land University Cooperative Extension. Horticulture Information Leaflet 555.
- Light and fertilizer recommendations for production of acclimatized potted foliage plants. C.A. Conover and R.T. Poole, 1984, Leaf Digest (7) six: i-6.
- Greenhouse Media Lab Acrid Addition Calculator to Control Alkalinity in Irrigation Water. B.Eastward. Whipker, D.A. Bailey, P.V. Nelson, Due west.C. Fonteno, and P.A. Hammer. Cooperative Extension Services of the Northeast States.
- Nutrition of Greenhouse Crops, pH and EC Meters â?? Tools for Substrate Analysis. 2000. T.J. Cavins, J.L. Gibson, B.E. Whipker, and W.C. Fonteno. North Carolina State University Research Study. Florex.001.
- Tips on Growing Bedding Plants, 4 ed. 1999. O.F.A. Services Inc.
- Tips on the Use of Chemical Growth Regulators on Floriculture Crops. 1992. O.F.A. Services Inc.
- Tons to Teaspoons, L2285, Academy of California Cooperative Extension Service.
- H2o, Media and Diet. 1996. Alkalinity, pH and Acidification, Chapter four. David Reed (Ed.) Brawl Publishing.
DISCLAIMER: Trade named products listed does not imply endorsement over similar products, which may also exist available.
Status and Revision History
Published on Mar 01, 2002
Unpublished/Removed on Feb 24, 2009
Published on Apr 29, 2009
Published with Total Review on Apr 25, 2012
Published with Full Review on February 22, 2016
Published with Full Review on Aug 01, 2017
Published with Full Review on Aug 10, 2020
Source: https://extension.uga.edu/publications/detail.html?number=B931&title=Conversion+Tables%2C+Formulas+and+Suggested+Guidelines+for+Horticultural+Use
Posted by: martinarro1982.blogspot.com
0 Response to "How Much Money Is It If Its 1.69 Dollars Per Pound And Its 10 Pounds"
Post a Comment