First, choose high-quality, high-yield, disease-resistant hybrid corn varieties; The selection of high-quality, disease-resistant, and high-yielding corn hybrids is the basis for the high yield of corn. He chose four varieties of Xindanyu 13, Beiyu 288, Zhengdan 958 and Danyu 39. Second, appropriate sowing; Appropriate sowing date of corn is mainly determined according to the corn planting system, temperature, lyrics, and variety. Due to the low temperature this spring, the sowing date has been postponed slightly, and sowing began on May 5. Third, soil testing and formula fertilization; Fertilizer should grasp the combination of nitrogen, phosphorus, potassium and trace elements, balanced fertilization, deep application of fertilizers, stage fertilizer, water and fertilizer combination to improve fertilizer efficiency. The amount of fertilization should be fully considered according to various factors such as the law of fertilizer absorption, yield level, soil fertility, fertilizer nutrient content and utilization. He applied fertilization strictly according to the fertilization recommendations issued by the county, basically scientific fertilization. Fourth, the machine sowing dense planting, corn sowing volume is generally 3.5-4 kg per mu, 3500-4000 strains of Mu Liumiao; V. (15:15:15) 40 kg per mu, 1 kg potassium fertilizer, 2 kg urea. Sixth, strengthen field management. First, post-emergence chemical weeding before seedlings and uniform spraying of ridges; The second is that when the leaves are 4 leaves, the seedlings will be equidistantly seeded. The third is timely fertilizer, topdressing 40 kg of urea per acre in the 11-12 leaf stage of corn, top dressing depth of 10-12 cm, 8-10 cm from the plant; Seven, timely harvest, to overcome the old habit of yellow loquat leaf harvest, try to postpone the harvest period, the disappearance of the corn grain milk line that the loquat leaf yellowing 7-10 days after the beginning of harvest, reduce the 1000-grain weight drop, prompting corn production. . Due to Wang Zhiming’s choice of suitable local varieties, he adhered to the technical regulations of standardized corn cultivation, scientific fertilization and medication, strengthened field management, and achieved a good harvest. His successful experience will surely drive the surrounding farmers and thus achieve agriculture. The ultimate goal of technology promotion work is to increase farmers' income and income, and popularize advanced scientific farming techniques. Trolley Ultrasound Scanner,Color Doppler Ultrasound,Doppler Ultrasound Diagnostic Instrument,Trolley Full Digital Ultrasound Scanner Mianyang United Ultrasound Electronics Co., Ltd , https://www.uniultrasonic.com