After plastic pruning of cotton, it can control its nutritional growth, adjust its nutrient distribution, reduce consumption, benefit the development of fruit branches and reproductive organs and promote its yield increase. Remove leaves and branches: also known as "beating public branches" Branches and leaves grow fast, consume more nutrients, inhibit the growth of fruit branches, affect the development of buds and bolls, cause shading of lower branches and leaves of cotton plants, easily breed pests and diseases, and make buds and bolls fall off, so they should be pulled out in time. If the cotton plant grows too vigorously, the leaves and branches under the fruit branches can be knocked out together. If there are buds on the branches, the top of the branches will be knocked off and deformed. Wipe excess teeth: also known as "wiping ears". The redundant teeth growing at the junction of fruit branches and main stems consume nutrients and affect the bud growth, so they should be erased at any time. Throughout the growth process,