实践经验证明：在单位面积产量稳定的情况下种植棉花，经济效益随着植棉成本的降低而不断提高，所以千方百计降低棉花生产成本是目前需要研究解决的重要课题。根据总结有关实践经验，目前降低棉花成本的主要途径和措施是：一、棉花优种必须保纯复壮随着科技的发展和棉花新品种 Practical experience shows that planting cotton under the condition of stable yield per unit area and increasing economic efficiency with the reduction of cotton planting cost are the important topics that need to be studied and solved in an effort to reduce the cotton production cost in every possible way. According to summing up the relevant practical experience, the main ways to reduce the cost of cotton and measures are: First, cotton superior species must be pure and rejuvenation With the development of science and technology and new varieties of cotton