In the process of corn seed production, proper close planting must be done to improve seed quality, yield, and value of commodities. Specifically speaking, we should pay attention to the following two points: 1, a reasonable dense planting, precision seeding. The most suitable maize population is the most suitable group. About 5,500 to 6,000 plants/667 square meters of seeding area are planted at a rate of about 1 kg for the male parent and 4 kg for the female parent to improve the uniformity of the population of the corn planted; Water, in order to promote the robustness of corn plants, deep rooted leaves, large panicles, can produce robust and qualified seeds. 2, timely set seedlings, remove weeds. Under normal circumstances, the system requires three-leaf seedlings, five-leaf stage seedlings, mothers to remove large seedlings, weak seedlings, diseased seedlings, etc., leaving the growth and orderly seedlings. The paternal remains have typical large, medium and small seedlings to prolong the time of loose powder. At the same time, attention should be paid to the combination and the removal of miscellaneous strains from the fixed seedlings to ensure that the system corn has a good group structure. In order to better promote the healthy growth of corn plants, the panicle develops well and produce more qualified hybrid corn seeds.
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