Corn Field Trials

Intro to Work in this Field

The purpose of this work is to update Wisconsin N recommendations to include processed manure and provide manure application rate guidelines that will improve N use efficiency and reduce losses to the environment. The objectives are to :

1. estimate N mineralization from raw and processed manures on different soil types in a laboratory study;
2. evaluate the effect of application timing (Fall vs Spring) on N availability and residual N from raw and processed manure;
3. evaluate the effect of application timing (Fall vs Spring) on nitrate leaching and nitrous oxide emission from raw and processed manure;
4. evaluate the effect of an N stabilizer on the availability of N and N loss from manure.

Field Location: