French revolution legume secret

摘要

Nitrogen has become the 'green gold' of cropping systems. It is a central component of plant amino acids and proteins as well as a catalyst in producing the plant life-blood, chlorophyll. No state is more conscious of nitrogen's importance than Western Australia, where it dominated the average 75,500 dollar worth of fertilisers applied to grain farms in 2001/02. To help reduce these costs, growers looked increasingly to legume crop rotations, such as lupins, to naturally import the element.