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我县夏玉米的产量较高,但是不稳。据调查分析,夏玉米产量不稳的原因是气候问题,而其中最主要的是由于夏季降水不匀,发生早涝灾害造成的。 夏玉米从播种到成熟需水的规律是:播种时需水较多些,以利于出苗;到苗期(从出苗到拔节前)需水要少些,有利于蹲苗,在抽雄前15天到开花是玉米生长最旺盛的时
My county summer corn production is higher, but unstable. According to the survey and analysis, the reason for the unstable summer maize production is the climate issue, of which the most important one is the uneven precipitation in summer and the early floods and floods. Summer corn from sowing to mature law of water demand is: more water when sowing, in order to facilitate emergence; to the seedling (from emergence to jointing) before the water less, is conducive to squatting, 15 days before tasseling When the flowering is the most vigorous growth of corn