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小麦返青前看色诊断及对症管理小麦叶色的深浅,可以反映出小麦植株的氮素水平和叶绿素含量高低。据观察,丰产麦田在返青-拔节-孕穗阶段叶色呈现青-黄-青的变化。返青阶段显青,植株体内氮素含量较高,有利于小穗小花发育,提高分蘖成穗率。而在生产上,往往由于生产...
Before returning to green, the diagnosis of color and symptomatic management of wheat leaf color depth, can reflect the level of nitrogen and chlorophyll content of wheat plants. It was observed that the high-yielding wheat fields showed green-yellow-green changes in the turning green-jointing-booting stages. Rejuvenation stage was green, plant nitrogen content is higher, is conducive to spikelet flower development, increase the rate of tillering into ears. In production, often due to production ...