稻田除草剂吡唑特的合成和除草效果  

Synthesis and Weed Control Efficacy of the Rice Herbicide Pyrazolate

作　　者：田官荣[1] 房立真[1] 吴明根[1] 朴仁哲[1] 全炳武[1] 

机构地区：[1]延边大学,吉林延吉133002

出　　处：《农药》2005年第5期205-207,共3页Agrochemicals

基　　金：吉林省科技发展计划项目;吉科合字第20000127国家自然科学基金(30360063)

摘　　要：以甲基肼水溶液、双乙烯酮为起始原料,经4步反应,以67%的总收率合成了吡唑特。合成的吡唑特对稻田杂草具有很高的除草活性,对水稻安全。对稗草、雨久花、牛毛草、眼子菜等杂草的ED90为1800ga.i./hm2,对慈菇、藨草的ED90为2000ga.i./hm2。Pyrazolate was synthesized in methyl hydrazine solution, using diketene as starting reagent, and with a total yield of 67%. Synthetic pyrazolate has high activity on rice weeds, and good safety to rice. The ED90 was 1800 g a.i./ha for control of Echinochloa crusgalli, Monochoria korsakowii, Eleocharis yokoscensis, and Potamogeton distinctus, and 2000 g a.i./ha for control of Sagittaria trifolia and Scirpus triqueter.

关 键 词：除草剂 吡唑特合成 杂草防除效果 

分 类 号：TQ450.2[化学工程—农药化工]