date:Oct 11, 2012
eciation of productivity differences within fields.
Kitchen says areas of fields that have become less productive for growing grain crops tend to coincide with areas of the field where the largest environmental problems are seen, such as lost sediment, nutrients and herbicides.
Our awareness that these two issues, lost productivity and environmental concerns, coincide spatially in fields made us look for ways to aggressively counter them, Kitchen said. That has led us in the last several years