Nitrogen Dynamics in Crop Rotations Utilizing Dairy Manure.

Nitrogen transformations in crop production systems with alkaline soils receiving repeated application of dairy compost and dairy manure are not well understood. In this session, we will be discussing several current studies from Southcentral Idaho that are focused on repeated applications of dairy manure to irrigated cropping systems. The discussion will be focused on the impact of repeated dairy manure and dairy compost applications on nitrous oxide emissions, in situ N mineralization via the buried polyethylene bag method, post-harvest deep soil nitrate testing, total soil N accumulations, and crop N uptake.