Oklahoma State University

Fertilizers

Fertilizers

  Nutrient Content, %
Source N P2O5 K2O CaO MgO S Cl Form
Anhydrous ammonia 82             gas
Aqua ammonia 20-25             liquid
Ammonium chloride 25-26           66 solid
Ammonium nitrate                        33.5             solid
Ammonium sulfate
21-0-0-24
21         24   solid
Monoammonium phosphate
MAP 10-52-0
11 48-55   2 0.5 1-3   solid
Diammonium phosphate
DAP 18-46-0
18-21 46-54           solid
Ammonium phosphate-sulfate   13-16 20-39       3-14   solid
Ammonium polyphosphate
APP 10-34-0
10-11 34-37           liquid
Ammonium thiosulfate 12         26   liquid
Calcium nitrate 15     34       solid
Potassium nitrate 13   44 0.5 0.5 0.2 1.2 solid
Sodium nitrate 16           0.6 solid
Urea 46             solid
Urea-sulfate 30-40         6-11   solid
Urea-ammonium nitrate (UAN)    28-32             liquid
Urea-ammonium phosphate 21-38 13-42           solid
Urea phosphate 17 43-44           solid

 

1 gallon of 32-0-0 contains 3.54 lbs. of N and weighs about 11.1 lbs.
1 gallon of 28-0-0 contains 2.99 lbs. of N and weighs about 10.7 lbs.
1 gallon of 82-0-0 contains 4.25 lbs. of N and weighs about 5.2 lbs.

 

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