Prevention of corn lack of alopecia areata

There are two main causes of birthlessness and baldness. One is poor pollination or late spinning, and sparse field pollen. Such as loose powder when rain and rain, affecting the normal flowering pollination; or flowering in case of high temperature and dry weather, insufficient soil moisture, pollen, filament life is shortened; or during the pollination period, no wind pollination bad. Second, the density is not suitable or lack of nutrition. The lack of water will affect the production and operation of organic matter, and it can also cause corn tipping.
Prevention measures: We must do a good job of fertilizer and water management to ensure that corn has sufficient water and nutrients. Especially during the flowering filling period, water shortage and defertilization should not occur.
The planting density should be adapted so that when photosynthesis is too low, the photosynthesis is low, organic matter is less, and normal pollination is affected. Therefore, the average density of summer corn is 4,000 to 5,000, and the higher fertility is the lower density, and the lower the fertility, the higher the density.
In terms of management, artificially assisted pollination should be performed when weak seedlings are to be biased and the ears are developed neatly and uniformly, and when some late-growing ears or climate are unfavorable. When planting, select good varieties.

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