Summer maize (2340, -4.00, -0.17%) has a short growth period and can mature normally. It must take necessary pre-maturing technical measures.
　　 1. Foliar fertilization In the middle stage of corn growth, 0.3% potassium dihydrogen phosphate plus zinc and boron micro-fertilizer mixture can be sprayed to promote the formation of corn kernels, improve stress resistance and early maturity.
　　 2 , prevention of pests and diseases to reduce the harm of pests and diseases to the late corn, improve the utilization of light energy, and promote the transformation and accumulation of nutrients in summer corn. Therefore, it is necessary to prevent and control corn brown spot, large leaf spot, aphids and corn borer.
　　 3 , interlaced to go to the "corns went to the head, the strength is as big as a cow." After the emasculation of the corn, the nutrients and water required for tassel flowering can be transferred to the growth and development of the ear. Second, male flowers are at the top of the plant, removing some male flowers to prevent shading, which is beneficial to corn photosynthesis. Therefore, interlacing can speed up the maturity of corn. Method of emasculation: You can go one line at a time or one plant at a time. The most suitable period for emasculation is that the tassel has just been taken out, and the hand can be carried while holding it. After the end of the pollination, all the remaining tassels are removed.
　　 4 , remove the empty plants will not be able to bear the plants and diseased plants, not only save water and fertilizer, but also conducive to ventilation and light.
　　 5 , suede sunburn at the end of the corn milk maturity, gently cut the leaves of the corn ears , so that the corn kernels directly receive sunlight, can promote the corn grain nutritional transformation and dehydration, early maturity for 7 to 8 days.
　　 6. Harvesting the plant in the corn wax maturity stage, plan the corn roots, grab it out and transport it out of the field, and place it in the shade behind the house or under the tree. It is best to pile the soil and pour some water to keep it. The long-term green leaf function promotes the transportation of nutrients in the stems and leaves to the grain, increases the grain weight, the storage pile should not be too large, and the stacking time should not be too long, preferably 15 to 20 days.
(Source: Yunxian Agricultural Bureau Information Unit)
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