1, appropriate time seedlings, Dingmiao. The growth of sweet corn at seedling stage is relatively weak. When seeded in direct seeding, the time for setting seedlings for thinning should be slightly later than that of ordinary corn, with 4-5 leaf internodes and 6-7 leaves being seedlings. It is necessary to transfer seedlings to make up for shortages and ensure that the seedlings are fully grown.
2, weeding, weeding. When weeding and weeding, we should master shallow-deep-light principles. From jointing to tasselling, combined with cultivator weeding light soil 2-3 times.
3, to go. Sweet corn is easier to produce than ordinary corn and should be picked up promptly.
4, skillfully applied fertilizer. Should be based on the fertilizer requirements of sweet corn in two phases of top dressing. Once there are 7-8 leaves before jointing, 4-5 kg ​​of urea is applied per acre; another time, about 10 days before heading, 4-5 kg ​​of urea is applied per acre.
5, irrigation drainage. In the mid-fertility stage of sweet corn, especially in the 15 days before and after the heading and flowering period, it will grow rapidly and must have sufficient moisture. Water shortage or excess water all affect the yield and quality of sweet corn. Therefore, unirrigated conditions and poor drainage are not suitable for growing sweet corn.
6, timely harvest. Generally about 20 days after pollination can be harvested. The color of the fruit is normally yellow, and the grain is full. The material that flows out of the granules when it bursts is milky or pasty, that is, it is a suitable harvesting period.
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