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倒伏是夺取小麦高产的一大障碍。倒伏造成的损失,一般在孕穗时倒伏减产约50％以上,抽穗前后倒伏减产约30—40％,灌浆时倒伏减产10—20％,乳熟末期以后倒伏减产约3％左右。倒伏减产的原因,在抽穗前后倒伏主要影响穗粒数(约减六粒左右),并降低千粒重;灌浆期倒伏,主要影响千粒重,一般降3克左右。造成小麦倒伏的原因虽是多方面的,但是小麦倒伏之前都是有征兆的。要做到有效
Lodging is a big obstacle to the high yield of wheat. The losses caused by lodging are generally reduced by about 50% at the time of booting, about 30-40% by lodging before and after heading, 10-20% by lodging during grouting, and about 3% by lodging after milk ripening. The reason for lodging and yield reduction, lodging before and after heading mainly affects the number of grains per spike (about 6 grains or so), and reduces the 1000-grain weight. During the grain filling stage, it mainly affects 1000-grain weight and generally drops about 3 grams. Although there are many reasons for the lodging of wheat, there are indications before the lodging of wheat. To be effective