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Adjuvant Effects on Spray Characteristics and Drift Potential

机译:辅助作用对喷雾特性和漂移电位的影响

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摘要

This paper describes studies that were conducted to investigate the effects of different surfactant and emulsion adjuvant chemistries and formulations on spray characteristics and drift potential of a commercial herbicide. Previous research has shown that surfactant, emulsion, and polymer adjuvants can affect the formation of sprays and liquid distribution patterns when atomized through flat fan nozzles. The present research involved the application of various different tank mix-adjuvant combinations through flat fan, disc-core, and air induction nozzles. The sprays were characterized using spark photography, droplet size analysis, liquid patternation, and driftability measurements in a wind tunnel. Atomization was related to the physical properties of the tank mixes and sheet breakup mechanisms. The results will help in the development of ASTM test guidelines for spray characterization and drift research, and provide valuable information for applicators to consider when selecting tank mix-nozzle combinations for the application of agricultural chemicals.
机译:本文介绍了旨在研究不同表面活性剂和乳液助剂化学成分和配方对商用除草剂的喷雾特性和漂移潜力的影响的研究。先前的研究表明,当通过扁平风扇喷嘴雾化时,表面活性剂,乳液和聚合物助剂会影响喷雾的形成和液体分布方式。本研究涉及通过扁平风扇,盘形芯和进气喷嘴应用各种不同的罐混合助剂组合。使用火花照相,液滴尺寸分析,液体图案化和风洞中的漂移性测量来对喷雾进行表征。雾化与桶混物的物理性质和碎纸机理有关。研究结果将有助于制定ASTM测试准则以进行喷雾特性和漂移研究,并为施药者在选择用于农药的罐混物-喷嘴组合时提供有价值的信息。

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