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保证足够的密度是实现玉米高产的基本前提,但是在增加密度后,玉米倒伏问题就会突出出来。倒伏发生的时期和轻重程度不同,可造成不同程度的减产,轻者减产5%～10%,重者减产30%～40%。根据我们近几年玉米高产栽培经验,落实好以下几项措施对玉米防倒伏效果非常明显。
Ensuring sufficient density is the basic premise to achieve high yield of corn, but the problem of lodging of corn will be highlighted after increasing the density. The period of lodging and the degree of severity may result in different degrees of yield reduction, with the light output reduced by 5% ~ 10% and the heavy output reduced by 30% ~ 40%. According to our experience in high-yield cultivation of corn in recent years, implementing the following measures to prevent lodging of corn is very obvious.