近年来,西瓜栽培面积越来越大,但西瓜田常滋生大量杂草,与西瓜争水、争光、争肥,严重影响西瓜产量,特别是西瓜覆膜后杂草将地膜穿破,使之失去保温、保水作用,因此,西瓜覆膜前化学除草十分重要。为寻求经济、高效、安全的露地覆膜西瓜除草剂,笔者于2001年进行了50%异丙草·乙氧 In recent years, growing area of ​​watermelon growing, but watermelon fields often breed a large number of weeds, water fight with watermelon, glory, fight fat, seriously affect the yield of watermelon, especially watermelon weeds will be worn after weeding, so that Loss of insulation, water retention, therefore, watermelon chemical weed control is very important. In order to seek economic, efficient and safe open-cut watermelon herbicides, the author carried out in 2001 50%