Manure analysis is a critical component of proper nutrient management planning. Table or book values of manure nutrient concentrations can serve as a starting point for planning purposes, but actual manure sample analysis provides a better indication of manure nutrient concentrations and will help better define application rates. Utilizing manure testing will help achieve the potential as a crop nutrient source, and result in reduced chance for misapplication that could lead to lower crop productivity or increased environmental risk.