| 功能高分子助剂G-100A调控农药对靶传递性能研究 |
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| 引用本文： | 黄桂珍,陈博聪,杨利超,郑壁稀,张磊.功能高分子助剂G-100A调控农药对靶传递性能研究[J].农药学学报,2020,22(2):299-305. |
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| 作者姓名： | 黄桂珍 陈博聪 杨利超 郑壁稀 张磊 |
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| 作者单位： | 汕头市大千高新科技研究中心有限公司,广东汕头 515041;山东省水稻研究所,济南 250100;汕头市深泰新材料科技发展有限公司,广东汕头 515041 |
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| 基金项目： | 国家重点研发计划 (2017YFD020030205) |
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| 摘 要： | 随着统防统治技术的发展，将多种农药制剂结合喷雾助剂混配使用已成为主要施药方式之一，但由此也带来了不同企业制剂产品或配方助剂与喷雾助剂之间的桶混稳定性问题。本文将聚丙烯酸酯类微交联结构功能高分子助剂G-100A与脂肪醇聚氧乙烯醚类结构高分子助剂、三苯乙烯苯酚聚氧乙烯醚磷酸酯等小分子助剂复配后作为配方助剂，制备了40%苯醚甲环唑 ? 吡唑醚菌酯水乳剂，并在田间进行了防治水稻纹枯病的药效试验。结果表明:在推荐使用浓度下，所制备的40%苯醚甲环唑 ? 吡唑醚菌酯水乳剂药液对靶标的黏附力与沉积量显著提高，且具有良好的抗蒸发性能，在防治田间水稻纹枯病时，减量25%仍可达到对照药剂 40%苯醚甲环唑 ? 吡唑醚菌酯悬浮剂的防效。此外，G-100A还可作为喷雾助剂使用，其在药液中以特有的结构存在，可有效抑制水分蒸发、减少雾滴飘移，并可有效降低雾滴碰撞叶面时的界面能，防止雾滴弹跳。研究表明，G-100A有望作为农药减施的调控手段之一，在更多配方体系中得到应用。
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| 关 键 词： | 高分子功能助剂 喷雾助剂 G-100A 苯醚甲环唑 吡唑醚菌酯 水乳剂 对靶传递 药液性能 水稻纹枯病 |
| 收稿时间： | 2019-11-22 |
Research on regulating pesticide-to-target delivery performance with polymer adjuvant G-100A |
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| Institution: | 1.DAUNI Research Center of Advanced Science & Technology Co. Ltd, Shantou 515041, Guangdong Province, China2.Shandong Rice Research Institute, Jinan 250100, China3.Shantou Shentai Development of New Material Technology Co. Ltd, Shantou 515041, Guangdong Province, China |
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| Abstract: | With the development of unified prevention and control technology, the use of multiple pesticide formulations combined with spraying adjuvants has become one of the main application methods. However, it has also brought about the stability problem of tank mixing between formulation products or formulation/spray adjuvants of different enterprises. In this paper, three functional adjuvants including polyacrylic ester-based micro-crosslinking macromolecule polymer G-100A, fatty alcohol polyoxyethylene ether macromolecule polymer, andtristyrylphenol polyoxyethylene ether phosphate were used to prepare 40% difenoconazole + pyraclostrobin emulsion in water (EW). The field control efficacy on rice sheath blight was carried out. The results showed that the adhesion and deposition of the liquid of the as-prepared formulation on the target were significantly improved under the recommended concentration, and it also had good anti-evaporation performance. In terms of the prevention and control of rice sheath blight in the field, even if the dosage was reduced by 25%, the control efficiency was still the same as the control agent (40% difenoconazole +pyraclostrobin SC). In addition, G-100A can also be used as a spray adjuvant. It exists in the liquid with a unique structure, which can effectively inhibit water evaporation and droplets drift. Moreover, it can also reduce the interface energy when the droplet impacts the surface of target leaf, preventing the droplet bouncing. In summary, G-100A is expected to be applied in more formulation systems, which contributes to the reduction of pesticide application in the future. |
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