| 20%异丙甲 ? 苄泡腾片剂的研制及其对稻田杂草的防治效果 |
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| 引用本文： | 延卫垚,杨景涵,马英剑,秦敦忠,陈旺,陈志洋,冯建国.20%异丙甲 ? 苄泡腾片剂的研制及其对稻田杂草的防治效果[J].农药学学报,2022,24(3):536-543. |
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| 作者姓名： | 延卫垚 杨景涵 马英剑 秦敦忠 陈旺 陈志洋 冯建国 |
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| 作者单位： | 1.扬州大学 园艺与植物保护学院，江苏 扬州 225009 |
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| 基金项目： | 江苏省大学生创新创业训练计划(202011117049Z)；江苏省研究生科研与实践创新计划项目(SJCX21_1613). |
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| 摘 要： | 为了提高稻田杂草化学防除的省力化程度，降低防治成本，通过单一变量法筛选配方中的助剂种类和用量，采用干法压片工艺制备了20%异丙甲 ? 苄泡腾片剂 (有效成分异丙甲草胺 + 苄嘧磺隆)，同时进行了田间药效评价。结果表明:20%异丙甲 ? 苄泡腾片剂的优化配方(质量分数)为:16%异丙甲草胺，4%苄嘧磺隆，18%有机膨润土，9%白炭黑，20%酒石酸，20%碳酸氢钠，6%润湿剂EFW，4%分散剂G202和3%润滑剂硬脂酸镁。该泡腾片剂在有效成分120~180 g/hm2 的用量范围内能有效防除稻田杂草，防效明显优于其单剂，与已登记的20%异丙甲 ? 苄(有效成分质量比17 : 3)可湿性粉剂相当，持效期达40 d以上。所研制的20%异丙甲 ? 苄泡腾片剂表面光滑，无粉尘，使用方便，省时省工，对稻田常见杂草均有良好防效，持效期长，具有推广价值。
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| 关 键 词： | 异丙甲草胺 苄嘧磺隆 泡腾片剂 配方筛选 稻田杂草 防治效果 |
| 收稿时间： | 2021-01-22 |
Preparation of metolachlor + bensulfuron-methyl 20% effervescent tablets and its control efficacy on weeds in paddy field |
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| Institution: | 1.School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, Jiangsu Province, China2.Jiangsu Sinvochem S&T Co., Ltd., Yangzhou 211400, Jiangsu Province, China |
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| Abstract: | In order to improve the labor-saving degree of chemical control of weeds in rice fields and reduce the cost of weed control, metolachlor + bensulfuron-methyl 20% effervescent tablets were prepared by the dry pressing process. The type and dosage of adjuvants in the formulation were selected by the single variable method, and the field efficacy of the prepared effervescent tablets was evaluated. The results showed that the optimal formulation (mass fraction) of metolachlor + bensulfuron-methyl 20% effervescent tablets was: 16% metolachlor, 4% bensulfuron-methyl, 18% organobentonite, 9% white carbon black, 20% tartaric acid, 20% sodium bicarbonate, 6% EFW, 4% G202 and 3% magnesium stearate. The effervescent tablets could effectively control weeds in the rice field in the dosage range of 120-180 g/hm2 of active ingredients, and its control efficacy was significantly better than that of single agent, which was equivalent to that of the registered wettable powder. The duration of control efficacy was more than 40 days. The effervescent tablets prepared in the study had smooth surface, no dust, and remarkable control efficacy against weeds in the rice field, which was worth to be promoted as a convenient and time- and labor-saving pesticide formulation. |
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