"No-till plots yielded a third more wheat and soybean than conventionally ploughed plots and reduced soil erosion by up to 90%. No-till has the additional benefit of reducing labor and fossil fuel use and enhancing soil biodiversity - all while cycling nutrients and storing carbon."
Source: Sara J. Scherr and Sajal Sthapit. "Farming and Land Use to Cool the Planet," State of the World 2009. 2009, 36. Their Source: A. Calegari, "No-tillage System in Parana State, South Brazil," in E.M. Bridges et al,. eds., Response to Land Degradation (Enfield, NH: Science Publishers, 2001), pp. 344-45.