Organic Farming More Energy Efficient

Organic farming results in a smaller yield than conventional agriculture, but it is far more energy efficient and better for the land, according to a 21-year study published in May 31, 2002 issue of Science. The findings are based on a study begun in 1978, in which scientists compared potatoes, barley, winter wheat, beets and grass clover grown using different methods -- organic vs. conventional, i.e, those that are heavily reliant on pesticides and other chemical treatments. The organic fields averaged 20 percent less yield, but also between 34 and 53 percent less fertilizer and energy, and 97 percent fewer pesticides. Per unit of energy, the organic systems produced more food, and the organic soils housed a larger and more diverse community of organisms.

Source: BBC News, Alex Kirby, 30 May 2002