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玉米果穗顶部常有一部分不能形成籽粒,俗称秃顶。秃顶对产量的影响很大。造成玉米秃顶的原因主要是玉米花丝受粉不良或孕穗期脱肥早衰,导致籽粒败育。现介绍几种防治玉米秃顶行之有效的办法,供大家在生产中参考使用。一、重施攻穗肥玉米追肥应本着前轻、中重、后补的原则,在大喇叭口期(15个叶片左右时),随浇水亩追施尿素10公斤或硝铵10～15公斤;
Often corn ear top part of the formation of grains, commonly known as bald. Bald has a big impact on production. The main reason for the baldness of corn is the poor performance of corn silk flour or bastard, which leads to the abortion of seeds. Now introduce several kinds of effective prevention and treatment of bald corn, for everyone in the production of reference. First, re-attack corn spike Corn top dressing should be based on the principle of light, medium, and then fill in the big bell mouth period (about 15 leaves), with the top dressing of urea 10 kg of ammonium nitrate or ammonium nitrate 10 ~ 15 kg