Nitrogen is used in agriculture as the basic element of many fertilizers. It is an essential factor for plant growth but also a potential source of pollution. Photo: Adrian S. Pye Attribution-ShareAlike 2.0 Generic (CC BY-SA 2.0)

Double-edged nitrogen is one more reason for a sustainable agriculture

How to manage nitrogen use to reduce environmental impact and protect soils. An Australian study provides guidance for firms and consumers

Re Soil Foundation