https://www.scidev.net/sub-saharan-africa/farming/feature/conservation-agriculture-increasing-yields-incomes.html

-SCIDEVNET

With traditional farming practices, Makhanu says, his harvest was limited to six bags of maize, and less than one bag of beans. The CA-based techniques have increased his harvest to 30-35 bags of maize per acre, and he predicts yields increase as crop residues improves the organic matter in the soil..