Listing of Commonly Available Fertilizer Materials

Nitrogen — Table 4 provides a listing and information on commonly available nitrogen sources.

Table 4. Nitrogen fertilizer materials

Material

Analysis

Physical form

Handling Precautions/ Comments

Anhydrous ammonia

82-0-0

gas

  • Extremely irritating to eyes and respiratory system in concentrations up to 0.07 % by volume; 0.17 % causes convulsive coughing; 0.5 to 1.0 % is rapidly fatal after short exposure;
  • Will burn if a source of ignition is present
  • Flammable and explosive mix tures are formed with air in concen trations of 16 to 25 % NH3 by volume.
  • Need specialized equipment for application, used primarily for agronomic crops on relatively level land.

Urea

46-0-0

solid (prills, granules, crystalline)

Good storage and handling properties

Ammonium nitrate

34-0-0

solid (prills or granules)

—Strong oxidizer; readily absorbs water;can be explosive when mixed with carbonaceous materials

UAN solutions

(28-32)-0-0

liquid

--Normally 33 to 35 % is urea and 45 to 47 % is ammonium nitrate.; weighs about 11.1 pounds per gallon; salting out may occur at 32 F.

Ammonium sulfate

(crystalline or granules)

-- Used primarily as an acidifying fertilizer or source of sulfur

Phosphorus -- Table 5 provides a listing of and information on commonly available sources of phosphorus.

Table 5. Phosphorus fertilizer materials

Material

Analysis

Physical Form

Citrate Soluble

Water Soluble

Handling Precautions

Diammonium phosphate

18-46-0

solid, granule

----

100

Avoid excess dust

Monoammonium phosphate

11-48-0

solid, granule

100

Avoid excess dust

Triple superphosphate

0-46-0

solid, granule

13

84

Avoid excess dust

Ordinary superphosphate

0-20-0

solid, granule

18

78

Avoid excess dust

Ammonium polyphosphate

11-37-0 10-34-0

liquid

----

----

Eye irritant, dike to contain spilled material

Potassium -- Table 6 provides a listing and information on commonly available potassium sources.

Table 6. Potassium fertilizer materials

Material

Analysis

Physical Form

Handling Precautions

potassium chloride

0-0-60

solid,granule

Avoid excess dust

potassium sulfate

0-0-50 + 18

solid, granule

Avoid excess dust

potassium nitrate

13-0-44

solid, granule, crystal

Avoid excess dust

Complete and Mixed Fertilizers — Table 7 provides a listing of some of the more commonly available complete or mixed fertilizer materials.

Table 7. Some complete and mixed fertilizer materials

Mixed Materials

Percent (%)

Pounds of Fertilizer to Supply One Pound of Primary Nutrient

N

P2O5

k2o

N

P2O5

k2o

19-19-19

19

19

19

5.3

5.3

5.3

15-15-15

15

15

15

6.7

6.7

6.7

10-10-10

10

10

10

10

10

10

6-12-12

6

12

12

16.7

8.3

8.3

12-24-24

12

24

24

8.3

4.2

4.2

5-10-15

5

10

15

20

10

6.7

18-46-0

18

46

0

5.5

2.2

NA

11-37-0*

11

37

0

9.1

2.7

NA

Micronutrient Fertilizer

Secondary Nutrients and Micronutrients - Table 8 provides a list of some of the more commonly available secondary and micronutrient sources.

Table 8. A listing of some secondary and micronutrient fertilizer materials

Nutrient Material

Nutrient Content (%)

Pounds of Material

for One Lb. Nutrient

Magnesium

Magnesium Oxy-Sulfate (granular)

36

2.8

Dolomitic Limestone*

9

11.1

Magnesium Sulfate (Epsom Salts)

9

11.1

Magnesium-Potassium Sulfate

11

9.1

Sulfur

K-Mag (Sul-po-mag)

21-22

4.5-4.7

Elemental Sulfur

85-100

1.0-1.2

Calcium Sulfate (Gypsum)

15-18

5.5-6.7

Ammonium Sulfate

24

4.2

Boron

Borax

10-15

6.7-10

Solubor

20.5

4.9

Calcium

Calcitic Limestone*

35

2.8

Calcium Sulfate (Gypsum)

22.5

4.4

Bone Meal

15

6.7

Iron

Iron Sulfate

40

2.5

Iron Chelates (soluble powder)

20

5.0

Manganese

Manganese Oxy-sulfate

28

3.6

Manganese Chelates (soluble powder)

20

5.0

Zinc

Zinc Oxy-Sulfate

36

2.8

Zinc Chelates (soluble powder)

25

4.0

  • Should not be used as a nutrient source unless there is a need for lime.
  • Should not be used as a nutrient source unless there is a need for lime.
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