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一、材料与方法试验安排在沈阳市苏家屯区红菱乡红菱村进行,试验地土壤为轻壤土,有机质含量为1.7％,pH值6.7。水稻品种为秋光。旱育苗,5月19日插秧,秧龄40天,插秧密度29.7厘米×16.5厘米,常规田间管理。试验设50％神锄可湿性粉剂(昆山化工厂产)每亩40克、50克、60克,50％快杀稗可混性粉剂(巴斯夫公司产)每亩40克,以不用药为对照。3次重复,随机区组排列,小区面积30米~2。6月20日施药,施药前一天将稻田水排除,用工农-16型背负式手动喷雾器喷雾施药,每亩药
I. Materials and Methods The experiment was conducted in Hongling Village, Hongling Township, Sujiatun District, Shenyang. The soil was lightly loam soil with organic matter content of 1.7% and pH value of 6.7. Rice varieties for the autumn light. Dry nursery seedlings, May 19 planting, seedling age 40 days, planting density 29.7 cm × 16.5 cm, conventional field management. Test set 50% God hoe WP (Kunshan Chemical Plant) 40 grams per acre, 50 grams, 60 grams, 50% fast kill barnyard malleable powder (BASF produced 40 grams per mu, with no medication for the control . 3 repetitions, random block arrangement, the plot area of 30 m ~ 2. June 20 pesticide application, the day before spraying the water will be excluded from the paddy, with a worker-peasant type -16 hand-held sprayer sprayer spraying, mu of medicine