【摘要】 为稻田杂草的有效防除提供新的药剂,进行1%精噁唑禾草灵泡腾片剂研制并检测其对水稻的安全性。结果表明:1%精噁唑禾草灵泡腾片剂的配方为:97.5%精噁唑禾草灵原药1%,十二烷基苯磺酸钠2.5%,可溶性淀粉6.5%,柠檬酸12%,萘磺酸盐3%,碳酸氢钠12%,无水硫酸钠补充到100%;制成的泡腾片剂有效含量0.98%,水分含量3.2%,悬浮率97.42%,崩解时间2.57min;泡腾片剂对稗草的室内毒力略高于水乳剂,对水稻田稗草和千金子的平均防效均>80%,在水稻2~4叶期施用安全。1%精噁唑禾草灵泡腾片剂对一年生禾本科杂草的防效较好,提高了水稻田使用的安全性。更多还原

【Abstract】 1% Fenoxaprop-p-ethyl EB was prepared and its safety to rice seedlings was detected to provide new herbicides for effective control of weeds in paddy field.Result:The formula of 1%Fenoxaprop-p-ethyl EB includes 1% original 97.5% Fenoxaprop-p-ethyl,2.5% Sodium dodecyl benzene sulfonate(SDBS),Benzene sulfonic acid sodium salt(BSNa),6.5% Soluble starch,12% Citric acid,3%Naphthalenesulfonate,12% Sodium bicarbonate and 67% Anhydrous sodium sulfate.The effective content,moisture content,suspension percentage and disintegration time of 1% Fenoxaprop-p-ethyl EB are 0.98%,3.2%,97.42% and 2.57 min respectively.The indoor toxicity of 1% Fenoxaprop-p-ethyl EB is higher than 69 g/L Fenoxaprop-p-ethyl EW.The average control effect of 1% Fenoxaprop-p-ethyl EB against Echinochloa crusgalli and Leptochloa chinensis both is>80%.1% Fenoxaprop-p-ethyl EB with a good control effect against annual gramineous weeds can be safely used at 2~4 leaves stage of rice seedlings.更多还原