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压麦有利小麦生长整齐,植株生长稳健,有利于防倒,促进花器官形成和发育,有利于子粒的形成和灌浆,获得穗大、粒多、粒饱。以往的做法是小麦拔节后碾压。据我们在晚茬丰产麦田试验,在同一块麦田,分别于小麦起身前、起身后、拔节后碾压,效果不同,如右表。据观察,起身前碾压,对大蘖抑制作用大,对中小蘖抑制作用小,恢复生长迅速,有利于小蘖赶大蘖,提高成穗率。起身后拔节前碾压,可抑制春蘖大量滋生,促进
Wheat malting wheat grow neatly, plant growth and stability, is conducive to anti-down, and promote the formation and development of floral organs, is conducive to the formation of grain and grouting, access to large spike, grain and grain full. The past practice is rolling wheat after jointing. According to our late crop of high yield wheat field experiment, in the same piece of wheat, respectively, before the wheat got up, got up, rolling after jointing, the effect is different, such as the right table. It is observed that rolling up before the large tiller inhibitory effect on the small tiller inhibition is small, rapid recovery and growth, is conducive to small tiller catch big tiller, to increase the rate of becoming spike. Rise after pulling up before the jointing, can inhibit the breeding of large numbers of spring tillers, and promote