Premature senility is caused by confliction of growth traits with traditional agronomy practices and renovation of production techniques with new cultivars in insect-resistant cotton.

• 摘要抗虫棉早衰主要是抗虫棉的生育特点与传统农艺措施发生矛盾，棉田生产技术投有随着棉花品种更新而适时改变造成的。