1, sweet corn must be planted separately.

Should be isolated from ordinary corn or other types of sweet corn, the distance is generally more than 400 meters. If there are natural barriers such as trees, hills and roads, the isolation distance can be shortened appropriately. What needs special reminder is that different types of sweet corn should not be planted next to each other, but also separately.

2. Fine soil preparation and seedling protection

Strictly speaking, growing sweet corn should be the same as growing vegetables. First of all, we should choose the right land and do a good job in land consolidation. When the soil moisture is suitable, the rotary tiller should be used for farming to achieve the purpose of fine soil, upper virtual soil and lower solid soil. Because of the low starch content of sweet corn (especially super sweet corn) seeds and the weak ability of young buds to top the soil, sowing should not be too deep. Generally, cover the soil about 6cm, and pay attention to insect prevention at seedling stage.

Sweet corn should be planted in a reasonable distance.

When planting sweet corn, we must pay attention to the commodity characteristics of the ear, not simply consider the yield. Because the purchasing levels of ears are different, especially for export or processing, we should try our best to improve the purchasing rate of primary products and secondary products. Therefore, it is necessary to determine the appropriate planting density according to the commodity demand and economic benefits, and increase the economic income per unit area as much as possible. The specific planting density of varieties in a certain place should be determined according to the test results of relevant technical departments.

4. Plastic film mulching seedling transplanting

The time to market of sweet corn is closely related to economic benefits and has the characteristics of vegetables. In the north, if it can be listed as soon as possible and supply fresh sweet corn in the off-season of fruit, it will get higher economic benefits. The alternative method is to use early-maturing varieties, seedling transplantation and plastic film mulching. On the premise of using early-maturing varieties, it is best to add the latter two measures. These measures can achieve the goal of morning market and increase economic income.

5. Pay attention to sowing by stages and listing continuously.

Planting sweet corn means selling fresh and green corn in the market. It is necessary to consider the daily sales volume, determine the output according to the sales volume, and make a planting plan to avoid economic losses. In order to extend the sales or processing time, sowing by stages or planting early, middle and late maturing varieties can be used in production.

These are the key technologies of corn planting. I hope my answer is helpful to you.