Selection and selection of varieties that are suitable for consumers' tastes and relatively long picking time, and have high yield, good sweetness, pure aroma, soft texture, rich nutrition, uniform ear size, thin seed coat, yellow grain, white cob , Seeds with high germination rate, strong seedling potential, good resistance, and strong lodging resistance can be sown in stages. The method of planting in stages with early, middle and late-maturing varieties can extend the harvesting period to increase the benefits. The open field cultivation can be planted from late March to early August. Greenhouses and plastic greenhouses can be planted earlier or later. Usually five months in spring and 15 days in summer and autumn so that the annual supply of sweet corn can be listed. Isolation planting prevents crosses with other corn varieties, reduces sweetness, and affects quality. Sweet corn must be isolated and planted. The isolation zone is required to be more than four hundred meters, and it can also adopt time difference isolation, requiring the flowering period to be more than one month apart. Fine seedlings of sweet corn seed dried, poor ability to germinate the top soil, germination rate is low, seedling growth is weak, the soil requirements are higher. Generally, it is necessary to deepen, flatten, and finely pulverize the soil to loosen the soil and create a favorable soil environment for seed germination and seedling growth. The seeds must be carefully selected to remove insect seeds, bad seeds, and moldy seeds. The soil moisture should be suitable when sowing, sowing should not be too deep, covering about five centimeters of soil, and ensuring that the cover soil depth consistent, and strive to full seedlings. Application of base fertilizer between the holes, but also pay attention to the prevention and control of underground pests, 50% available phoxim seed dressing or irrigation. Field management In the general conditions of soil fertility, phosphorus and potassium fertilizers were applied as basic seed fertilizers. Moisture management should pay attention to flood control at the seedling stage and drought protection in the middle and later stages. As sweet corn grows slowly, and seedlings are prone to grass shortages, weeds must be culled as early as possible. To prevent and control corn borer from jointing to large bellmouth stage, use low-toxicity pesticides such as phoxim, prevent and treat it in small bell mouth period, ensure that pesticides are used with caution, use less, and use pesticides earlier, which not only effectively controls pests, but also does not cause residual pesticides. And affect the quality of corn. Sweet corn is grouted until the milk ripening period, if there are locusts, etc., BT emulsion can be used to spray the ear. Earthing roots promote growth, increase yield, and increase sweetness. Yancheng Rongtai Labware Co.,Ltd , https://www.rongtailab.com