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 ...

Plants need phosphorus to grow. Farmers’ use of mineral phosphorus fertilisers has greatly increased soil phosphorus fertility and, consequently, crop yields. However, these fertilisers are made from ...

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 ...

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 ...