Add Yahoo as a preferred source to see more of our stories on Google. A spreader sprays sewage sludge, which is rich in phosphorus, across a farm in Oklahoma. AP Photo/Joshua A. Bickel When people ...

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 ...

Plants can't do without phosphorus. But there is often a 'withdrawal limit' on how much phosphorus they can get from the soil. That's because phosphorus in soils is often in forms that plants can't ...

Phosphorus is essential for agriculture, yet this important plant nutrient is increasingly being lost from soils around the world. The primary cause is soil erosion. The study shows which continents ...

Plant and Soil, Vol. 418, No. 1/2, Part I: Special Issue Iron nutrition in plants (September 2017), pp. 541-555 (15 pages) Background and Aims Selenium accumulation in vegetation has resulted in ...

Phosphorus (P) is an essential nutrient for optimum plant growth. However, the continued application of manures and fertilizers to soils has led to an accumulation of P in many Delaware soils to ...

Soil science tells us we need nitrogen (N) to promote leaf and stem growth. It’s the first number in the 3-number analysis ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Dinesh Phuyal, University of Florida (THE CONVERSATION) When people think about ...