孕穗期是玉米营养生长与生殖生长并进的时期,搞好这时期的田间管理,对于提高玉米产量起着至关重要的作用。其关键管理措施如下。1.重施孕穗肥玉米孕穗期,是雌穗小穗、小花分化的盛期,是决定果穗大小、籽粒多少的关键时期,也是植株需肥的高峰期。因此,玉米穗肥在雌穗小花开始分化时追施效果最 Booting period is the period of vegetative and reproductive growth of maize. To improve the field management in this period plays a crucial role in raising corn yield. The key management measures are as follows. 1. Re-fertilization Ear booting corn booting stage, is the ear spikelets, floret differentiation of the peak, is to determine the size of the ear, the number of kernel critical period, but also the peak of fertilizer plants. Therefore, the ear of corn ear spikelets began to differentiate the top effect