为了探索棉花高产稳产的规律及其途径,从一九七四年以来,我们连续三年进行了棉花高产试验,平均亩产205.7斤,其中七四年为230.6斤,七六年为178斤。在构成棉花产量的三因素中,衣分率的变化最小,平均39.2％,七四年为40.1％,七六年为38.6％,仅相差1.5％。铃数和铃重的变化较大,七四年每亩总铃数6.6万只、单铃重5克;七六年为5.2万只、3.7克。二年相比,铃数相差21.2％,铃重相差26％。从近几年大面积产量分析,七五年和七六年结铃都比 In order to explore the law of cotton’s high and stable yield and its ways, since 1974, we conducted a cotton yield test for three consecutive years, with an average yield of 205.7 kg per mu, of which 230.6 kg in 1974 and 178 kg in 1976. Among the three factors that make up the cotton yield, the change of the clothing percentage is the smallest, with an average of 39.2%, 40.1% in 1974, 38.6% in 1976, only a difference of 1.5%. The number of bolls and boll weight varied greatly. In 1974, the total number of bolls per acre was 66,000 and the weight of single boll weighed 5 grams. In 1974 it was 52,000 and 3.7 grams. Compared to two years, the difference between the number of bells 21.2%, 26% difference between bell weight. From the analysis of large-scale output in recent years, the ratio between the bell in 1975 and the seventy-six years is even higher