Add Yahoo as a preferred source to see more of our stories on Google. Soil type affects how it retains water and nutrients.Photograph: iStock/Getty Images (Photograph: iStock/Getty Images) I often ...

Soils have a natural characteristic called the cation exchange capacity (CEC) that allows them to hold (and exchange) cations (e.g., Ca+2 or Na+). These cations are held tight enough on the CEC that ...

Since the alfalfa in the rest of the field didn’t show any signs of potassium deficiency, I suggested that the farmer take a composite soil sample from just the high areas, which represented about one ...

Scientists have uncovered how different types of biochar influence the movement of water in agricultural soils that contain excessive phosphorus, offering new insights into how farmers can reduce ...