Ratoon rice cultivation is a kind of green production technology of paddy rice under the new circumstance,which can increase multiple-cropping index,promote the profit of rice field and save the cropping cost. This kind of cropping technology meet the needs of rice development in some specific rice planting areas along the Yangtze River. The present study have identified the key technologies and indicators in the process of mechanized production for ratoon rice along the Yangtze River areas in Anhui Provinc...