1. Isolation and planting: Sweet corn should be isolated from other types of sweet corn. The distance is usually more than 300 meters, or the time interval should be used, but the sowing period should be more than 20 days, which is based on the principle that two types of corn pollen do not meet.
2, timely sowing: the temperature is stable through 12 ° C for the appropriate sowing date.
3, fine seedling: sweet corn seed 瘪, less starch, low emergence rate, using soil group seedlings to nurse seedling transplanting, improve seedling rate: in the seedling compound fertilizer as the base fertilizer, use the wet field mud to squeeze into small eggs size discharge, do not stay Gap, then use your fingers to smear a small hole on each mud pill, sowing should not be too deep, 1.5 cm deep is appropriate, and pay attention to prevent seedling pests, try to use coated seeds.
4, reasonable close planting: seedlings grow to 2 leaves and one heart to 3 leaves one heart period for transplanting and planting, double planting, planting 3200-3400 plants.
5, scientific fertilization and water management: soil testing and formula fertilization, more organic fertilizer, acre of organic fertilizer 1500 kg 45% ternary compound fertilizer 20 kg as the base fertilizer. The topdressing application was applied to the interplanted plants three times, and 45% of the ternary compound fertilizer was applied to each acre, 50 kg, and the soil was cleaned; the soil moisture in the field during the whole growth period was maintained at about 60%.
6, pest control. Mainly for prevention, try to use biological pesticides with high efficiency, low toxicity and low residual pesticides to strictly control the safety interval of pesticides and ensure the safe quality of sweet corn.
7, timely harvest: sweet corn harvested 18-22 days after pollination is appropriate, the ear is high in sweetness, delicious and delicious, high yield.
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