ENVIRONMENTAL EDUCATION SERIES
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EXTENSION ENVIRONMENTAL EDUCATION, AUBURN UNIVERSITY, AL 36849-5647
Using Livestock Manure As Fertilizer
ANR-723, 1992. By Charles Mitchell, Extension Agronomist, Agronomy, Auburn University
Livestock manure is an excellent fertilizer for the soil, providing such nutrients as nitrogen, phosphorus, and potassium. Manure application can also benefit the soil's water holding capacity and tilth. When using livestock manure, however, one should follow good management practices in order to avoid hazards to the crop and the environment.

Sources Of Livestock Manure

Poultry waste, cattle manure, and swine manure are all used as organic fertilizers in Alabama. They are all excellent sources for nutrients; however, nutrient compositions will vary among operations and over time. Users of manures from broiler houses, lagoons, or feedlots should have an idea of the total and available nutrient content before they are applied to land.

Possible Problems

Because nitrate-nitrogen can leach into groundwater and both nitrogen and phosphorus can erode or runoff into streams, manure applications should be based strictly on the nutrient requirement of the crop. Therefore, the soil should be tested to determine nutrient needs for the crop to be grown.

Good Management Practices

The following precautions should be taken in order to prevent nutrient losses through leaching, erosion, and runoff:

  1. Eliminate excessive applications.
  2. Time applications appropriately, rotate crops,
  3. and use winter cover crops. Apply manure when it will be utilized by the crop.
  4. Incorporate or inject the applications into the
  5. soil. Do not leave the manure on the soil surface.
  6. Do not apply manure to steep slopes or during
  7. periods prone to erosion and runoff.
  8. Document the amounts and contents of material applied.
  9. Protect soil from erosion.
  10. Use filter strips or buffer zones between fields
  11. and nearby streams.

For more information, call your county Extension office. Look in your telephone directory under your county's name to find the number.
Issued in furtherance of Cooperative Extension work in agriculture and home economics, Acts of May 8 and June 30, 1914, and other related acts, in cooperation with the U.S. Department of Agriculture. The Alabama Cooperative Extension System (Alabama A&M University and Auburn University) offers educational programs, materials, and equal opportunity employment to all people without regard to race, color, national origin, religion, sex, age, veteran status, or disability.

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