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 ...

A soil test for phosphorus represents an index of phosphorus availability to crops. A soil test needs to correlate to crop response in order to provide a useful index of crop response and any ...

Long-term use of fertilizer and manure nutrients on the Delmarva Peninsula has led to an enrichment of agricultural soils with phosphorus (P). Consequently, many soils in Delaware are now considered ...

In the manual, all processes from sample preparation to PFAS content measurement, including soil sampling and pretreatment, are explained in an easy-to-understand manner with illustrations. Concern ...

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 ...

Farmers across Africa are faced with eroded, phosphorus-limited soils, leading to low crop yields, despite having some of the world’s richest phosphate deposits in Morocco. Soil scientists at Mohammed ...

Agriculture departments in Liberia, along with partner organizations in the development of the agricultural sector, are using Integrated Soil Fertility Management (ISFM) modeling, soil diagnostics, ...