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我县自80年代初开始推广早稻薄膜育秧技术,近年来全县推广面积在90%以上,但化学除草技术一直未能较合理地与之相配套。作者从1989年开始,对薄膜秧田盖膜前和揭膜后化除中除草剂的配套使用进行了研究。通过几年应用检验,效果良好。1 薄膜秧田的温湿条件及稗草发生特点我县早稻秧田杂草以稗草群落为主。薄膜育秧早稻4月上旬播种,播后盖膜,盖膜期15～20天,4月下旬秧苗三叶期揭膜。此期间常年平均气温14.7℃,而膜内土表和3厘米
Since the early 1980s, our county has promoted the technology of early rice film seedling raising. In recent years, the popularization area of the county has exceeded 90%, but the chemical weeding technology has not been able to match it rationally. Since 1989, the author has studied the use of herbicides in film seedling before and after filming. After several years of application testing, the effect is good. 1 thin film seedling temperature and humidity conditions and the occurrence of barnyardgrass My county early rice seedling weeds to barnyard grass community-based. Thin film seedling early morning sowing in early April, after sowing, covering 15 to 20 days, late April seedling clover period uncovering. During this period the average annual temperature of 14.7 ℃, while the membrane soil table and 3 cm