The no-till sowing and planting technology of corn has been widely promoted in our town, especially the spring drought is more serious this year. Conventional planting is often incomplete, and the emergence of no-till seeding technology is generally better than conventional planting. The key technology for no-till cultivation is
1. Flat work: Planting on the surface of flat cultivated land, no ridges, reducing the surface area of ​​cultivated land by flat work and reducing soil water evaporation. 2, straw cover returning to the field: in the harvesting operation, the straw is evenly covered in the cultivated land table 3, no-till seeding: operation with no-till seed drill, one-time deep fertilization, cutting straw, seed bed finishing, single seeding, covering soil Repression and other processes. 4. Chemical weeding: Weeding with herbicides under the cover of corn stalks, generally using spray machinery after emergence. 5, autumn deep pine: use a special deep loose machine to carry out deep pine after crop harvest. The technical effects are mainly reflected in: First, improve the ability of soil water storage and preservation. As the crop straw is covered, the surface runoff and water evaporation of the rainwater are reduced, and the soil water storage capacity is increased. The second is to improve soil fertility. The straw itself contains a lot of nutrients such as organic carbon, nitrogen, phosphorus and potassium. The straw covers the surface all the year round. Generally, it can rot one-third of the season, so that a large amount of organic matter enters the soil, which increases soil nutrients and improves soil fertility. The third is the improvement of soil biological properties. No-till reduces the disturbance to the soil, maximally protects the original properties of the soil and protects the soil organisms. The fourth is the cost-effectiveness. The cost of fuel, fertilizer and labor for no-till cultivation is reduced, and the cost per hectare can be reduced by about 1,000 yuan. The fifth is to protect farmland and reduce dust. In the sandstorm area, no-till straw cover technology can effectively reduce wind erosion. The sixth is to protect the ecological environment and promote the sustainable use of farmland. Large-scale implementation of straw returning to the field, effectively preventing farmers from burning straw, preventing the formation of haze weather and sandstorms.
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