Managing manure for optimum economic crop production with minimum environmental impact requires a knowledge of the manure’s nutrient content. While standardized or book values listing average nutrient contents of manures are available, they are of little value because of the large variation that exists among different manure storage and handling systems.
Instead, manure analysis is recommended for the accurate determination and optimum management of manure nutrients. The Standard Manure Test of the Denele program provides the minimum analysis needed to develop a nutrient management plan. Advanced Manure Testing is also available; that provides all of the analyses in Standard Manure Test 1 plus additional secondary and trace elements. The phosphorus source coefficient provides a measure of the relative availability of P in manure to runoff and is for use in the P Index. Individual and optional tests are also available. Denele Analytical is a certified manure-testing laboratory.
Compost testing is important for characterizing the beneficial physical and chemical properties of compost as well as for identifying potential problems with compost use. The laboratory employs testing procedures from the U.S. Compost Council’s Test Methods for the Examination of Composting and Composts.