Hammer claw and flail-type straw returning machines can be matched with 50, 55, 60, 65, 70 type multi-brand tractors, and have good comminution effect on wheat, corn and other straws. After returning straw, it can improve the soil structure, loosen the soil, improve ventilation, increase the ability to store water and nutrients, and increase the yield. The soil organic matter content in the field where the straw is returned to the field is increased by 0.01%, and the capacity is reduced. This improves the state of soil compaction caused by the long-term use of chemical fertilizers, and effectively prevents the dry alkalization of the land from creating good soil basic conditions for crop growth. Afterwards, the land yield per unit of land increased by 42.2 kg, and the rate of increase was 8.9%. The growth of corn plants was robust, and the rate of spike formation was high. Compared with the land that was not returned to the field, the yield per mu was increased by 51 kg and the yield increase was 8.2%.
Straw incineration causes environmental pollution. The realization of straw returning to fields can greatly reduce labor intensity, save labor time, free up a large number of laborers from heavy field work and transfer them to secondary and tertiary industries, which effectively protects farmers' income, accords with the country's optimized production structure, and accelerates The requirements for the development goals and guidelines of rural industrialization form a benign agricultural ecological cycle.
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