Research and application on appraising method of tech-economic performances of tillage machinery for paddy field

According to the tillage demand of paddy field in north area, the target system to appraise tech-economic performances of tillage machinery was build up in this paper, calculating models of targets and appraising method were also discussed in this paper. Performances of three kinds of tillage machinery for paddy field were appraised and analyzed applying the theory. The paper supplies a new method to appraise tech-economic performances of tillage machinery and a reference for other machinery selection of other mechanization operation.