旱地作物中,玉米、花生、棉花等大宗作物及多种蔬菜、瓜果类作物,采用地膜覆盖栽培配套施用化学除草的技术已经推广应用多年了,该项技术除了保温、保墒、保湿、早熟增产的优势外,对于防除杂草、节省用工效果也是非常显著的。但在生产实践中,我们常看到有些覆盖地膜的旱地作物有时也有杂草丛生的现象,每平方米常有各类杂草100余株,有的杂草因膜内生态条件好 Dry land crops, corn, peanuts, cotton and other bulk crops and a variety of vegetables, fruits and crops, the use of plastic film mulching cultivation supporting the application of chemical weeding technology has been extended for many years, the technology in addition to insulation, moisture, moisture, early maturity increase Of the advantages, for the control of weeds, saving labor effect is also very significant. However, in production practice, we often see that some dry-land crops covering mulch sometimes have overgrown weeds, with more than 100 strains of weeds often per square meter. Some of the weeds are often contaminated by poor ecological conditions in the membrane