Study on Minimum Tillage with Water Saving Technology and Implement for Paddy Field

In this paper, a brand-new method of tillage and soil preparation for paddy field is discussed. The method uses a special roto tiller for rotary hoeing field in strip, instead of the traditional moldboard plow or rotary tillage. The characteristics of this tillage method are as follow: first, it reduces the power consumption and the operation cost significantly compared to traditional tillage and soil preparation for paddy field. For the adoption of new strip minimum tillage, soil humifying and rice seedling transplanting, the four operations of harrowing, smashing, leveling and dragging paddy residues were canceled, power consumption was reduced, and savings of cost for soil preparation ranged from 50-60 per cent. Second, compared to traditional soil preparation, the wastage of water for dunking field was saved from 30-40 per cent. Thus, it is a new and highly effective technology in saving water. Third, it can curtail the period of tillage and soil preparation for paddy field from the primary 10-15 days to 1-2 days. Fourth, it realized conservation tillage by reduced tillage and putting rootstalk and part of straws back into the field. Fifth, the method increases outputs and income by 18 per cent. This technology is an innovation and has a great function for the development of paddy production. Key words: Paddy conservation tillage, minimum tillage, water-savings, cost reduction, and income increment