The University of Delaware (UD) has rated soils in terms of the likelihood of profitable responses to additions of phosphorus (P) and potassium (K) from fertilizers, manures, and other soil amendments ...

Soil contains an array of micronutrients and these form the building blocks for crops destined to be eaten, processed, or fed to livestock. It is vital for both consumers and industry that ...

When people think about agricultural pollution, they often picture what is easy to see: fertilizer spreaders crossing fields or muddy runoff after a heavy storm. However, a much more significant ...