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为探索5％丁草胺颗粒剂在稻田中的除草效果及对作物的安全性,为指导大田应用提供科学依据,特在早稻本田及晚稻秧田进行有关试验,并在全县当年晚稻本田推广5万亩。现将结果报告如下: 一、试验设计与方法供试药剂①5％丁草胺颗粒剂(昆山陆扬精细化工厂产);②60％丁草胺乳油(昆山化工厂产);③5O％杀草丹乳油(日本组合化学株式会社产)。 (一)秧田除草试验: 供试水稻品种为汕优6号,分3个时期用药,即播种塌谷后(6月27)、秧苗1叶1心期(7月1日)和2叶1心期(7月4日)。在各期均设亩用5％丁草胺颗粒剂0.5公斤、0.75公斤、1.0公斤、2.0公斤及不用药(对照)。1叶1心期增加50％杀草丹乳油每亩100毫升,2叶1心
In order to explore the weeding effect of 5% butachlor granules in paddy field and the safety of crops, to provide a scientific basis for the field application, especially in the early rice Honda and late rice seedling for the test, and in the county that late rice Honda promotion 5 Mu The results are reported as follows: First, the experimental design and methods for test agents ① 5% Butachlor granules (Kunshan Lu Yang Fine Chemical Plant); ② 60% Butachlor EC (Kunshan Chemical Plant); ③ 5O% herbicide Dan EC (manufactured by Nippon Unichem Chemical Co., Ltd.). (I) Seedling weeding test: The tested rice variety was Shanyou 6, which was divided into 3 periods: sowing the valley after fall (June 27), seedling 1 leaf 1 heart (July 1) and 2 leaves 1 Heart (July 4). In each period, mu 5% butachlor granules 0.5 kg, 0.75 kg, 1.0 kg, 2.0 kg and no medication (control) were set aside. 1 leaf 1 period increased 50% kill grass Dan Dan oil 100 ml per acre, 2 leaves 1 heart