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近几年来,我们通过试验和较大面积的生产实践证实,麦棉两熟实行东西行向种植比南北行向种植有以下优点: 1.棉苗光照时间较长。棉花播种到出林前,棉行及棉苗接受光照时间的多少,对棉苗的生长发育影响很大。不同行向种植,接受的光照时间不同。在一幅麦一行棉花的小厢栽培情况下,东西行向种植(棉花种在小麦的南面),晴天阳光从上午7时半到8时半,照射到下午4时到4时半,每天光照时间在8.5小时左右。南北向的每天光照时间只有4小时左右(棉花播在麦行东边的,阳光从上午9时左右开始,照射到下午1时左右:
In recent years, we have confirmed through experiments and large-scale production practices that the implementation of cotton-wheat double-sowing has the following advantages over the north-south line of planting: 1. Cotton seedling has a longer light duration. Cotton sowing to the forest before the cotton and cotton seedlings receive light time, the growth and development of cotton seedlings have a great impact. Different lines to plant, accept the light of different time. In the case of a barley crop of wheat and cotton, east-west lines are planted (cotton is planted to the south of the wheat), sunny days are from 7.30 a.m. to 8.30 a.m., and from 4:00 p.m. to 4.30 p.m. Time is about 8.5 hours. North-South daily light time of only about 4 hours (cotton sowed in the eastern part of the wheat line, the sunshine from around 9 am, exposure to about 1 pm: