The Effect of Soil Humidity on the Development of Cotton Fiber
Li Zhongdong Xu Xuan(Department of Agronomy)
Soil Humidity has an obviously significant .effect of the'development of cotton fibers. High soil humidity can promote the cotton fiber length ,and accumulation of dry matter, and accelerate the transformation of soluble sugcr into ccllialosc and raise the synthesis rate of cellulose in fiber as well as be favourable for the development of cotton fibers. Conversely, low soil humidity can inhibit the development of cotton fibers .In the flowering and cotton boll forming stage when soil humidity is 40%, the development of cotton fiber is significantly inhibited; when 60%, it can basically meet the needs of cotton fiber development ; when 80% ,thc development of cotton fiber is better encouraged. Therefore ,in the full blooming stage, soil humidity should not be less than 80%.Tf drought occurs, irrigation will be carried out in time so as to supplement soil water.