High quality cultivation techniques of sweet corn (1)

In recent years, the popularization  application area of sweet corn has gradually expanded,  the economic benefits are more considerable. In order to promote the production of sweet corn to make great progress, wholesale manufacturers of quick-frozen sweet corn comprehensively analyzed the cultivation practice for several years,  put forward the technical points of sweet corn cultivation, which is the raw material of quick-frozen sweet corn, for reference.

1. Selected varieties

The following four principles should be paid attention to in the selection of varieties: first, considering the local ecological conditions, selecting the suitable varieties with compact plant type, high yield  multi resistance; secondly, if processing into canned products, the ordinary sweet corn can be selected; thirdly, if the fresh fruit ears are listed on the market, the super sweet corn varieties should be selected; fourthly, the early, middle  late maturing varieties should be cultivated together  listed successively. In recent years, sweet corn varieties cultivated locally include tianrumi 8, Jingtian 3, Jingtian 8, Tiantian, etc.

2. Isolation control

If sweet corn  other types of corn cross pollination, the sweetness will be greatly reduced, thus reducing  even losing the actual value of sweet corn. Therefore, isolation measures should be taken to ensure the purity of quality. In production, there are mainly two kinds of isolation measures, namely, space isolation  time isolation. Spatial isolation means that the distance between sweet corn  other types of maize should be more than 400m; temporal isolation means that the sowing date of sweet corn  other types of maize should be one month different.

3. Early sowing

The sowing date of spring maize mainly depends on the temperature, which should be started when the soil layer of 5-10 cm reaches 10-12 ℃,  the sowing time is  the last ten days of March to the first ten days of April. Summer maize should be planted as early as possible after harvesting,  should be sown  the middle of May to the middle of June. The earlier the sowing, the higher the yield.

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