Fertilizer nutrients in livestock and poultry manure
To keep the addition of nutrients from manure and fertilizer in balance with the nutrient removal by crops requires a record-keeping system that includes soil tests, laboratory analysis of the manure nutrient content, manure application rates, and crop yields. To obtain reliable nutrient data, it is necessary that the manure be well mixed before and during the loading, sampling, transport and land application processes.
Archive version. For the most recent information see extension.missouri.edu.