1. Mechanical extermination can fertilize the soil and lay the foundation for mechanical planting. After mechanical smashing and comminution, the organic matter in the soil can be increased, the soil aggregate structure can be rearranged and combined, the soil can be changed from hardened type to loose type, air permeability and water permeability can be increased, drought resistance and sluice resistance can be improved, and conditions for mechanical sowing can be created. .
2. Mechanical extermination can loosen the soil and create conditions for crop growth. Mechanical extermination is generally 6-8 cm deep, and a loose zone is formed on the ridges, so that the original soil reconstitutes a new structure, which increases air permeability and water permeability, loosens the soil, and promotes premature ripening of crops.
3, mechanical smashing can keep fertilizer and keep smashing. Since the mechanical smashing is the original ridge operation, the original soil layer will not be destroyed, and the organic matter in the original soil layer will be maintained. These organic matters will be concentrated in the original ridge together with the humus produced by the root sorghum, so that the crop can have sufficient nutrients.
4. When mechanical smashing can grab crops, it can provide guarantees for late-maturing and high-yielding crops. Due to the high work efficiency, mechanical smashing can greatly shorten the time of smut removal and advance the sowing date, which can guarantee the cultivation of late-maturing high-yield crop varieties.
5. Mechanical extermination can reduce labor intensity and increase work efficiency. The use of mechanical extermination saves 17 man-days per day from labor, and the saved labor can be used for other agricultural production activities.
6. Mechanical extermination can change soil physical and chemical properties and create conditions for increasing grain production. The use of mechanical decoction causes the rhizome to be crushed and decomposed to produce a chemical reaction, resulting in a new type of neutralizing substance that neutralizes the alkaline substances in the soil and significantly improves the state of soil compaction.
7. Mechanical extermination can eliminate shallow pests and increase production. The depth of mechanical ploughing and ploughing is generally 6-8 cm, which can eliminate various pests and diseases hidden in the shallow layers of the soil and provide a prerequisite for increasing grain production.
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