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棉花育苗移栽已在生产上普遍应用和推广,收到了显著的增产效果.为了更好地掌握育苗移栽技术,进一步探讨不同移栽期、苗龄、温度与缓苗和棉苗生育的关系,找出育苗移栽的适宜时期和苗龄及培育壮苗的措施,为生产提供依据,我们于1975—1977年连续三年进行了育苗移栽试验研究。一、试验方法试验地为两合土,PH 值7.5左右,地下水位约1.5米,有机质0.76%。试验均采用营养钵塑料薄膜保温育苗,品种为徐州142。1975年试验面积为1亩。3月20日播种育
Cotton seedling transplanting has been widely applied and popularized in production, and has received significant yield-increasing effect.In order to better grasp the transplanting technology of seedling, the relationship between transplanting age, seedling age, temperature and rearing seedling and cotton seedling growth was further discussed , To find out the appropriate period of transplanting seedlings and seedling age and seedling cultivation measures to provide a basis for the production, we were in 1975-1977 three years of transplanting seedling studies. First, the test method for the two test soil, PH value of about 7.5, the groundwater level of about 1.5 meters, 0.76% of organic matter. Experiments are nutrition bowl plastic film incubation seedlings, varieties of Xuzhou 142. 1975 test area of 1 mu. March 20 sowing