How can summer corn be planted with high yield?

How can summer corn be planted with high yield? Please introduce the planting method in detail. The planting method of summer corn can refer to the following: first, select excellent varieties. Such as: Jifeng 58, Xingkang 2, Jidan 31. Second, seed treatment. Seed drying promotes post-ripening and improves seed vigor; seed dressing with 1605 or methylamine phosphate fertilizer solution, sowing for 2 to 3 hours, drying and sowing; seed dressing with boron, zinc and molybdenum with 2 grams per kilogram. Third, sow seeds. Summer corn should be sowed as early as possible, and the sowing amount should be completed before June 25, depending on the size of the grain, generally about 5 jin, with a sowing depth of 4 cm. Fourth, seedling management. 1. Check and replenish the seedlings: make sure that the seedlings are complete, complete and strong. 2. and time fixed seedlings: 3 leaf stage seedlings, 4 leaves 5 leaf stage fixed seedlings. 3. Reasonable close planting. There are about 5000 seedlings per mu of early-maturing dwarf varieties, 4000 plants of middle-maturing varieties and 3500-4000 plants of late-maturing varieties. 4. Strengthen the management of water and fertilizer to promote the early development of seedlings. Summer maize seedling stage is short, rapid development, field management is often lost, seedling stage should be early management to promote. Fifth, panicle stage management: 1. Topdressing. After the beginning of jointing, corn should be topdressing 8kg of stalk fertilizer (urea) and 15kg of ear fertilizer (urea) at the big trumpet stage. 2. Watering. Timely watering summer maize jointing in case of drought to promote the normal growth and development of summer maize; timely watering and panicle watering at the big trumpet opening stage, which has the greatest water demand in this period, it is necessary to ensure the suitable supply of water and fertilizer, improve the water absorption capacity of roots and increase the photosynthetic rate of leaves, promote the occurrence of a large number of secondary roots, promote the normal growth and development of female and male ears, and ensure that the ear is large and has more grains. 3. Timely drainage in case of waterlogging. In the late growth stage of maize, the root activity gradually weakens, and waterlogging will seriously affect the growth of maize. Therefore, timely drainage and waterlogging prevention should be carried out. Sixth, artificial pollination should be done well during flowering. It can generally increase production by 8-10%. 7. Go male. Castration is a simple and easy measure to increase production, generally increasing production by about 10%. During the appropriate period of emasculation, it is appropriate to master that the male ear has just pulled out the parietal leaf without dispersing the powder. except for the edge of the ground, the field should be castrated by separate plants. Eighth, harvest in due time. Harvest in time when the bracts of more than 90% of the plants in the corn field turn yellow and loose, the grains harden and the nails pinch without dent. Click to get more corn planting techniques click to get more food crop planting techniques