Spring corn is mechanized, high-yield and efficient
Scale, standardization and mechanization are the only way for modern corn production in China. Densification planting and full mechanization are important ways for high-yield and high-yield corn. With key technologies such as rational close planting, precision on-demand, mechanical fertilization, mechanical fight, straw returning, and mechanical harvesting as the core, many years of experimental demonstrations in Xinjiang Construction Corps and Heilongjiang Reclamation Area On the basis of the formation of corn dense planting high-yield full-scale mechanized production technology. Technical points: 1. Choose varieties that are resistant to dense, anti-fall, and suitable for mechanical harvesting. Choose the varieties that have been approved by the state or the province, have been planted in the local area and have excellent performance, such as density tolerance, lodging resistance, mechanical precision on-demand and mechanical harvesting. The grain direct harvest requires a variety of fast dehydration and short growth period of 5 to 7 days. 2. Densification planting. According to local climatic conditions, soil conditions, production conditions, variety characteristics and production purposes, reasonable plant spacing will ensure proper density. The light conditions in the northwestern region are better. Generally, the mid-late maturing varieties retain 6000 to 6500 plants/mu; the medium and early-maturing varieties are 7000-7500 plants/mu. There are 6000~6500 plants/mu in early-maturing varieties in Northeast China, and 5000-5500 plants/mu in medium-maturing varieties. 3. Use mechanical precision seeding. The germination rate of single-seeding seeds should be higher than 96%. Through the foot, timely sowing, etc., to ensure that Miao Qi, Miaoyun, Miaoquan, Miaozhuang, improve group uniformity. Seeding with fertilizer should be planted and fertilizer separated. 4. Fertilize in stages. According to the corn yield target and the level of soil fertility, the soil testing formula fertilization is carried out, and the recommended formula or formula special fertilizer for soil testing at various soil and fertilizer stations is used. In the areas where conditions permit, 2 to 3 tons of high-quality organic fertilizer per acre or about 1 tons of refined organic fertilizer; all phosphate fertilizer, 30% to 40% of nitrogen fertilizer (if the fertilizer can be reduced accordingly) and 70% potassium fertilizer as base fertilizer . The remaining fertilizer is subjected to a one-time mechanical chase before the small bell period. 5. Control and prevent falling. For the lodging areas where the lodging is frequent and the density is high, the growth is too strong, and the varieties have poor lodging resistance, the chemical control agents such as jade gold, tontianbao, hydroxyethene, etc. can be sprayed in the 6~8 leaf-expansion stage of corn. , control the length of the base internode, enhance the strength of the stem, prevent lodging. 6. Timely late harvest, mechanical harvest. Choose the right harvesting machine according to the planting distance and the quality of the work. After the corn is ripe, the ears can be harvested. Grain mechanical harvesting can be carried out 2 to 4 weeks after physiological ripening (complete disappearance of grain milk line), grain moisture content should be below 28%, harvesting, peeling, threshing and stalk treatment at the same time (cutting) Silage or crushing back to the field). 7. Straw returning to the field, fertilizing the soil. Use a forage picking and baling machine to bundle the straw into a feed, or use a straw returning machine to crush the straw. Use the flip plough to turn the ground, the depth is 30 ~ 40 cm. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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