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我区位于东海之滨,过去棉花亩产一直在百斤左右徘徊。近两年来,我们在三甲公社五塘大队五队,跟贫下中农一起种试验田,发现正常的棉花叶色在整个生育期要通过“三黑三黄”的变化过程。五塘大队根据棉花“三黑三黄”的变化实行因苗管理,结果增强了棉株的结铃性,降低了蕾铃脱落率,夺得了高产。1973年,这个大队132亩棉田亩产皮棉164斤,高者达253斤。1974年在较大面积上推广了“三黑三黄”看苗经验,132亩棉田亩产皮棉189.4斤,较高的生产队和田块亩产200斤以上。
My area is located in the East China Sea coast, the past cotton yield has been hovering about hundred pounds. In the past two years, we have set up trial fields with poor middle peasants in the fifth corps of the five-pond brigade of the A-Class Commune and found that the normal cotton leaf color passes through the process of “three black, three yellow” throughout the growth period. According to the cotton “three black and three yellow” changes in the implementation of management due to the Miao, the results increased the boll of cotton plants, reducing the rate of falling buds, won the high yield. In 1973, this brigade 132 mu of cotton fields lint 164 pounds, the highest of 253 pounds. In 1974, a large area was popularized by the experience of “Three Blacks and Three Yellows” to see Miao, with a total area of 189.4 kg of mu of 132 mu of cotton fields and a mu production of 200 kg or more per mu for the higher production team.