棉花地膜覆盖栽培是一项有效的增产技术措施。但由于地膜覆盖人工除草困难,致使杂草丛生,草荒严重,有些杂草能戳穿地膜生长,地膜被破坏后,透风、漏气不能保温,严重地影响棉花的生长和发育,是覆膜棉花生产中难以解决的问题。为此,我们在1985—1986年进行了地膜覆盖棉田化学除草试验,找出了防除杂草效果好,对棉花安全的化学除草剂:杀草净、拉索、稳杀得和盖 Cotton film mulching cultivation is an effective stimulation technology. However, due to the difficulty of mowing the mulching film, the weeds are overgrown and the grass is very poor. Some of the weeds can pierce through the mulching film. After the mulch film is damaged, the mulching film is impervious to heat and air leakage, which seriously affects the cotton’s growth and development. Difficult to solve the problem. To this end, we carried out in 1985-1986 mulching cotton field chemical herbicides test to identify good weed control effect on the safety of cotton chemical herbicides: net kill grass, cable, stability and stability and covered