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夏玉米的产量90—95%是靠光合作用制造与积累的,加强夏玉米中后期管理,延长光合时间,增加光合面积,减少无效消耗,提高光合效率,即可达到穗大、粒多、粒重粒饱,夺取高产的目的。夏玉米的中后期管理,主要指的是拔节到抽雄和抽雄到成熟两个阶段。现就这两个阶段的生育特点谈一些意见,供各地参考。一、拔节到抽雄(穗期)
Summer maize yield 90-95% is by photosynthesis manufacturing and accumulation, strengthen the summer maize management, to extend the photosynthetic time, increase photosynthetic area, reduce ineffective consumption, improve photosynthetic efficiency, you can reach the spike, grain, grain Heavy grain full, to win the purpose of high yield. Summer maize in the late management, mainly refers to the jointing to tasseling and tasseling to mature two stages. Now on the characteristics of these two stages of fertility to talk about some of the views for reference. First, the jointing to tasseling (spike)