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UT Soil & Nutrient Management
UT Fertilizer Recommendations
Soil Fertility
- Overview of Tennessee Soils
- Nutrient Management
Soil Management
- Soil Health
- Cover crops
Projects
Links

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UT Soil & Nutrient Management
UT Fertilizer Recommendations
Soil Fertility
- Overview of Tennessee Soils
- Nutrient Management
Soil Management
- Soil Health
- Cover crops
Projects
Links

Fertilizers

Nitrogen sources

Anhydrous ammonia (82 percent)
Ammonium sulfate (21 percent)
Ammonium nitrate (33-34 percent)
Urea (46 percent)
Urea ammonium nitrate (28-32 percent)

Phosphorus sources

Ammonium polyphosphate (34-37 percent)
Di-ammonium phosphate (46 percent)
Mono-ammonium phosphate (48-61 percent)
Triple superphosphate (45 percent)

Potassium sources

Muriate of potash or Potassium chloride (60 percent)
Potassium magnesium sulfate (21-22 percent)
Potassium nitrate (44-46 percent)
Potassium sulfate (48-53 percent)

Sulfur sources

Ammonium sulfate (24 percent)
Potassium sulfate (18 percent)
Magnesium sulfate (13 percent)
Gypsum (18 percent)
Zinc sulfate (18 percent)
Thiosulfate (10-26 percent)
Elemental sulfur

Zinc sources

Zinc sulfate (22-36 percent)
Zinc chelates (6-14 percent)
Zinc lignosulfonate (10 percent)

Boron sources

Borax (11 percent)
Boric acid (17 percent)
Sodium pentaborate (18 percent)

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(865) 974-7342

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Tennessee

Knoxville, TN 37996
(865) 974-1000

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