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为了研究棉花整枝与产量的关系,我们于1979年进行了棉花整枝试验研究,结果整理如下。本试验为复因子试验,设计为:①不整枝,②粗整枝(仅脱裤腿、打顶),③细整枝(脱裤腿、打边心、去赘芽、打老叶、去空枝及打顶).一、棉花整枝与产量、品质的关系:棉花细整枝的产量最低,但霜前花多,亩产籽棉339斤,霜前花312斤;粗整枝的产量最高,亩产籽棉384斤,比细整枝的每亩增产13.4％,霜前花302斤;不整枝的亩产籽棉381斤,比粗整枝的略低,但比细整枝的每亩增产12.4％,霜前花289斤。细整枝的棉花虽然霜前花率达92％,但每亩仅比粗整枝
In order to study the relationship between cotton pruning and yield, we conducted a cotton pruning test in 1979, the results are summarized below. This test is a complex factor test, designed as: ① not pruning, ② thick pruning (only take off the legs, topping), ③ fine pruning (take off the legs, beating edge of the heart, to the buds, playing old leaves, empty branches and hit Top.) First, the relationship between the cotton pruning and yield and quality: the finest pruning branches have the lowest yield, but the flowers before frost are more than the previous ones, with 339 kg of seed cotton per mu and 312 kg of frost before frost. The output of coarse pruning branches is the highest, , An increase of 13.4% per acre compared with fine pruning, 302 jins before frost; and 381 kg per acre of seedless pruning, slightly lower than that of coarse pruning, but an increase of 12.4% per acre compared with fine pruning. Fine twigs of cotton flower frost even before the rate of 92%, but only thick than the pruning