Innovation of strip fertilization planting for rice straw crushing with back-throwing and interrow-laying.

The index Y 1 showed a trend of first increasing and then decreasing with the increase of factor B (which was parabolic shape), and the peak value appeared at B 2 , indicating that too small or too large machine walking speed will cause Y 1 to increase. his is because the slower the machine travels, the more likely it is that the smashed straw will be intermittent during the strip paving process, which leads to an increase in the uniformity coefficient of the mulching straw per unit area.

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The results showed that the crushing spindle rotation-speed A had an extremely significant impact on Y 1 , followed by the machine ground speed B .

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