Abstract

In order to effectively eliminate the disadvantages of improper disposing of residues and fully exploit the advantages of no-tillage seed drill technology, a machine for rice-wheat cyclic planting was developed by designing and attaching drilling and ditching assembly to a combine harvesting assembly. Tests carried out on drilling practice showed that, multi-functional machine for rice-wheat rotation, rubber track was adopted to substitute the traditional land wheel for drilling driving, cannot only effectively get rid of the intermittent drilling, but also can easily achieve the speed synchronization of harvesting and sowing practice; within the limitation of designed walking velocity, mean values of the row consistency and stability of seeding quantity as well as seeding uniformity were 93.9±1.4%, 98.4±0.5% and 76.2±5.3% respectively, which could meet the performance requirement of rice direct seeding with soil cover; for a suitable broken rate, the working length of the fluted roller is preferred to be not less than 9.4 mm if NJ210-80 roller feed was chosen to drill rice, the transmission ratio can be increased to reduce the rotary speed of the fluted roller to acquire a suitable seeding quantity, if the value exceeds the agronomic requirement of the local seeding date.

Keywords:

Combine harvester, direct seeding, multi-functional machine, rice-wheat rotation, testing,

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Competing interests

The authors have no competing interests.

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