Practice has proved that the selection of good maize varieties is the most economical and effective measure to win the harvest of corn. To the legitimate three-evidence seed business units to purchase, and request for invoices for purchase in case of quality problems in the future. The three certificates are the seed business license, business license and seed quality certification. According to the production level, select good seeds. Different varieties have different adaptability. Under high fertilizer and water conditions, the yield has a relatively high level. It is advisable to use varieties with high yield potential, such as Yuyu 22, Chenghai 1, Chenghai 6, and Chenghai 9, and the conditions are poor. The dry and thin land with a relatively low production capacity is directly selected from varieties such as Shandan 2 and Shandan 5l. According to different farming systems, select good varieties. In two-year-old areas, early, middle and late-maturing corn varieties are selected according to wheat ripeness, and attention should be paid to balanced production increase throughout the year; in early-maturing areas, early-maturing varieties should be selected, such as Ludan 50, Zhengdan 8, and Shandan. No. 22, Xiyu No. 3 and so on. Use coated seeds. The advantages of coated seeds are many, such as seedlings, seedlings, early-on-mu, anti-seedling virus, insect pests (such as thrips and dwarfism), and can increase production by about 10%. Keep good varieties properly. After the seeds are purchased, they should be stored in a well-ventilated, cool, and dry place in a well-ventilated woven bag or cloth bag. Timely sowing. Wheat ridge interplanting should be controlled according to the growth of wheat, sowing the wheat 7 to 10 days before the harvest; paste sowing should also seize the time after the wheat harvest timely sowing.
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