While we are seeing some very positive crop responses to poultry litter & manure use on crops and this is a valuable source of crop nutrients, note that appropriate agronomic use requires a calibrated spreader resulting in a relatively uniform distribution. Below are some links to help with using poultry litter.

Guidelines for the Commercial Application of Poultry Litter

Poultry Manure as a Fertilizer Source

Calibration Procedures for Solid and Semi-Solid Animal waste Application Equipment – Weight-Area Method

Calibration Procedures for Semi-Solid Animal Waste Application Equipment – Load Area Method Spreader System

Poultry Litter Spreader Calibration Video