美国得克萨斯州格朗德河下游地区,常因秋雨造成棉花烂桃和污损。美国农业研究局科研人员,试用早熟棉花品种来缩短生育期,并提前至7月初脱叶,及早收获,从而可以避开秋雨,保证质量,减低生产费用。试验在一般结构的土壤上进行。采用四个适宜高密度种植的栽 The lower reaches of the Grand River in Texas, USA, often cause rotten cotton and defaced cotton due to autumn rains. Research staff at the Bureau of Agricultural Research, to try early maturity cotton varieties to shorten the growth period, and early leaves early in early July, early harvest, which can avoid the autumn, to ensure quality and reduce production costs. The test is carried out on soil of general structure. Four planting suitable for high-density planting