Worldwide, approximately 95 million hectares of cropland are under no-till management
"Worldwide, approximately 95 million hectares of cropland are under no-till management - a figure that is growing rapidly, particularly as rising fossil fuel prices increase the cost of tillage."
Source: Sara J. Scherr and Sajal Sthapit. "Farming and Land Use to Cool the Planet," State of the World 2009. 2009, 36.