Combination blade roller for straw returning cultivator

Abstract

The straw was buried in field in transitory and busy farming season whether it’s paddy or dry land. Mechanized straw application was beneficial to solve the problem of straw burning, and also conducive to the fertility of soil and beneficial to soil improvement. It was an important measure to develop ecological agriculture and agriculture sustainable development. In order to solve the problem of crop residue burning, we designed a straw burying rotary tiller. It can bury crop straw not only in wet land, but also in dry land. It is suitable for tillage in middle and lower reaches of Yangtze River, where the principal crop rotation is wet land rice after dry land crop annually. Based on our previous research achievements, the cultivator for high stubble returning in paddy field and so on, are widely used. So there are two main kinds of cultivating blades in this rotary tiller. They are rotary blades IIT245 and spiral blades. The former blades are used to cut soil, while the latter blades are to bury straw. The results provide the basis for the structure optimization of the cultivator for straw returning and the improvement of its working performance, and also provide a suitable implement to achieve high stubble straw mulching and soil tillage in paddy field and dry land.