When people think about agricultural pollution, they often picture what is easy to see: fertilizer spreaders crossing fields ...

Phosphorus is crucial for crop growth. But too little can lower crop yields, and too much can lead to pollution downstream.

Phosphorus is crucial for crop growth. But too little can lower crop yields, and too much can lead to pollution downstream.

A Penn State-led study analyzed data from 430 rivers across the U.S. and found that phosphorus loss from agricultural lands has increased over the past four decades, despite efforts to reduce it. This ...

Plants need phosphorus, an essential nutrient, to grow. This nutrient is present in fertilizers and applied to crops to increase their yields. One downside of too much phosphorus in this agricultural ...

Q: You mentioned in a previous article that fertilized soils often contain too much phosphorus. Is there a problem with this? Mark, Tulsa A: There are problems with excess phosphorus in both ...