落蕾落铃是目前棉花低产的主要因素,减少棉花脱落,是直接提高棉花产量的唯一途径。毛主席在山东观察时,曾对山东农业科学工作者讲过:“你们要好好研究怎样叫棉花不脱落,或者是少脱落”,由此可见研究棉花脱落的重要性了。从本场几年来的观察结果,平均棉花脱落率在70%上下,最高在80%以上,低的也达50%左右。不同年分,脱落率有高有低:1956年因台风暴雨脱落 Falling Falling Bell is the main reason for low yield of cotton at present. Reducing cotton shedding is the only way to directly increase cotton yield. When observing in Shandong, Chairman Mao once told Shandong agricultural scientists: “You have to study how cotton does not fall off or fall off less.” This shows the importance of studying cotton shedding. Observations from the field over the past few years, the average cotton shedding rate of 70% up and down, the highest in more than 80%, low also reached about 50%. In different years, the rate of exfoliation is high and low: the typhoon storm fell off in 1956