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我省棉花地膜覆盖栽培面积迅速扩大,1983年已有126万亩。因地膜覆盖提高了早春地温,引起杂草生长旺盛,撑破地膜;迂阴雨低温年份,杂草推迟烧伤期或长期不死,棉花不能正常生长,影响了覆盖的效果。为此,我们于1983年,试验探索除草膜在棉花地膜覆盖栽培中除草效果及对后茬小麦出苗生长的影响。一、材料与方法除草膜是宝鸡塑料厂用除草剂——扑草净试制的产品,厚度0.015毫米,供试作物为棉花和小麦。以长沙塑料三厂普通地膜同样厚度为对照。
Cotton mulching area in our province has rapidly expanded the area of cultivation, in 1983 there have been 126 million mu. Due to plastic film mulching increased ground temperature in early spring, causing weeds to grow vigorously and break the mulch. In the low temperature years, weeds delayed burning or long-term immortality, cotton can not grow normally, affecting the coverage effect. To this end, in 1983, we explored the effect of weeding on weeding in cotton mulch and on the emergence of emerging wheat after cultivation. First, the material and methods Herbicidal film is used in Baoji Plastic Factory herbicides - prometryne trial product, the thickness of 0.015 mm, the test crops for cotton and wheat. Changsha Plastic Factory common film thickness of the same as the control.