Alfalfa is native to semi-arid southwest Asia, and countries such as Iran, Georgia and Afghanistan, where it has developed under very hot, dry conditions. Although much of it is irrigated, it also ...

Nitrogen-based fertilizers are essential for modern agriculture, and compounds like ammonia and urea are also widely used in ...

Organic farming has long been touted as an environmentally friendly alternative to conventional agriculture. A new study in the Proceedings of the National Academy of Sciences (PNAS) provides strong ...