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Response of Selected Weed Species to Postemergence Imazethapyr and Bentazon

机译:某些杂草物种对出苗后的伊马替卡比和苯达松的响应

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摘要

Imazethapyr and bentazon were applied with petroleum oil adjuvant in a factorial arrangement to weed species in greenhouse and field research to determine if postemergence weed control by imazethapyr was antagonized when bentazon was tank-mixed. Tank-mixing 840 g/ha of bentazon with 13 or 27 g/ha of imazethapyr increased redroot pigweed and eastern black nightshade dry weight as compared to Colby's expected values in the greenhouse. However, weed control was not reduced in field studies. Subsequent greenhouse studies indicated that soil interception and resulting root uptake of imazethapyr increased redroot pigweed control. Bentazon decreased foliar absorption of ~(14)C-imazethapyr by 15% and translocation of ~(14)C from the treated leaf by more than 50% compared to ~(14)C-imazethapyr applied alone.
机译:在温室和田间研究中,将Imazethapyr和Benazon与石油佐剂一起以因子分解方式应用于温室和田间研究中的杂草物种,以确定在将Benazon桶混时是否会拮抗Imazethapyr的出苗后杂草控制。与Colby在温室中的预期值相比,将840 g / ha的苯达松与13或27 g / ha的咪唑乙烟灵进行罐混会增加红根杂草和东部黑色茄属植物的干重。但是,野外研究并未减少杂草的控制。随后的温室研究表明,土壤的截留和咪唑乙烟的根吸收增加了对紫菜杂草的控制。与单独施用的〜(14)C-吡咯烷酮相比,Bentazon降低了〜(14)C-吡唑吡嗪的叶吸收量,降低了15%,而〜(14)C从处理过的叶片中的转运减少了50%以上。

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