Use fine varieties. After several years of trials and demonstrations, high-yield, high-quality, multi-resistance corn hybrid Yuyu 22, Yuyu 31, and Nongda 108 were selected as main varieties. The seed used for the coating needs to meet the national level seed standard, with 1.5 kg-2 kg per mu. Cultivate strong seedlings. In order to cultivate healthy corn seedlings, we must focus on the following areas: Select the best seedbed. We choose fertile soil, Honda head or garden where water is poured as seedbed. According to Honda's 10 square meters per acre nursery, grow 8 meters - 9 meters, 1.2 meters wide seedbed, leave a 35 cm ridge back between the seedbeds. Formulated nutritious soil. The seedbed will be made by shallow ploughing and thinning, shoveling out 2 centimeters - 3 centimeters of topsoil, and placing it on the ground outside, using 20 grams of urea, 80 grams of diammonium, and 60 grams of potash per square meter of bed surface. The proportion of each seedbed is calculated and the surface soil shoveled out is thoroughly mixed. sowing. The seeding period is controlled on May 20 -25. When sowing, first sprinkle the nutrient soil into half of the height of the seedbed, and then pour enough water. After the water seeps, draw a square of 5 cm (6 cm) for each square. Then, plant one seed per square and cover the soil after sowing. Seed management. Agrochemicals were sprayed after covering the nutrient soil and the amount was 4 g per 10 m2 bed. Usually depending on the seedbed sensation, once every 3 days, pouring water, small water infiltration, keep the bed dry and wet alternating. Watering was stopped 2 days before transplanting, and a rooting powder was sprayed 3 days before planting. The concentration of 20 g/kg was extremely favorable for root growth after transplanting. Safety Raincoat Reflective,High Visibility Raincoat,Safety Raingear,Class 3 Raincoat Ningbo Staneex Imp. & Exp. Co., Ltd. , https://www.staneex.com