Why Sustainable Agriculture?
Some 8.98 million farmers have adopted sustainable agriculture practices on 28.92 million hectares in Asia, Latin America and Africa. Reliable data from 89 projects show higher productivity and yields: 50-100% increase in yield for rainfed crops, and 5-10% for irrigated crops. Top successes include Burkina Faso, which turned a cereal deficit of 644 kg per year to an annual surplus of 153 kg; Ethiopia, where 12 500 households enjoyed 60% increase in crop yields; and Honduras and Guatemala, where 45 000 families increased yields from 400-600 kg/ha to 2 000-2 500 kg/ha. Long-term studies in industrialized countries show yields for organic comparable to conventional agriculture, and sometimes higher.