During the corn flower grain stage (ie, male to mature), the stems and leaves stop growing and enter the reproductive growth period centered on grain development. The main measures for this period of management are:
1. Apply the attacking fertilizer. Application of attacking fertilizer during tasseling to flowering can promote grain filling and increase grain weight. Combined with watering, 5-10 kg of urea is applied per mu. It is especially important for high-yield fields of over 800 kg.
2. Watering in time. The corn flower stage plant requires a large amount of water. If the water is lacking, the fertilization is poor, the leaves are prematurely degraded, the photosynthesis and nutrient transport capacity are decreased, the abortive grain is increased, and the grain weight is decreased, especially in the 20 days after flowering. Therefore, in the case of drought in the flowering stage, the corn should be poured with water in a timely manner to maintain the water holding capacity in the field at about 80%; the milk ripening to wax maturity is maintained at 75% to 70%.
3, science to the male. Vigorously promote the corn to go to the male, and when the male ear is just exposed, it is strictly forbidden to bring leaves.
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