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首页> 外文期刊>Indian Journal of Weed Science >Influence of quizalofop-ethyl on narrow-leaved weeds in blackgram and its residual effect on succeeding crops
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Influence of quizalofop-ethyl on narrow-leaved weeds in blackgram and its residual effect on succeeding crops

机译：喹喔啉乙酯对黑克麦中窄叶杂草的影响及其对后代作物的残留效应

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摘要

A field experiment was conducted at Research Farm of MPUAT, Udaipur for two consecutive years during 2008-09 and 2009-10 to evaluate the efficacy of different doses of quizalofop-ethyl as post-emergences (at 4-6 leaf stage of weeds) in blackgram and residual effect thereof on succeeding Rabi crops (wheat, gram and mustard). The experiment comprising five weed control treatments, viz. quizalofop-ethyl at 37.5 and 50 g/ha as post-emergence, pendimethalin 750 g/ha as pre-emergence, farmers practice of two hand weedings at 20 and 35 days after sowing (DAS) and weedy check, was conducted in randomized block design with four replications. To study phytotoxicity, quizalofop-ethyl 100 g/ha was also included in addition to above treatments. In the experimental field, more than 50% weeds were dominated by Echinochloa spp. Results revealed that among the herbicidal treatments, quizalofop-ethyl 50 g/ha recorded the lowest narrow-leaved weed density and dry weight at 30 DAS and at harvest during both the years.Quizalofop-ethyl irrespective of its doses was not effective against broad-leaved weeds. The weed control efficiency of quizalofop-ethyl 50 g/ha was 81.3% than the highest (85.6%) under two hand weedings against grassy weeds at harvest. Number of branches and pods/plant, seeds/pod and grain and stover yields of blackgram were also superior in plots treated with quizalofop-ethyl 50 g/ha or two HW. Quizalofop-ethyl was found safe to blackgram, and did not cause any residual toxicity to succeeding crops.
机译：在2008-09年和2009-10年期间，在乌代浦MPUAT的研究农场连续两年进行了田间试验，以评估不同剂量的quizalofop-ethyl在出苗后（杂草的4-6叶期）的功效。 Blackgram及其对后续Rabi作物（小麦，克和芥末）的残留影响。该实验包括五种杂草控制处理，即。出苗后以37.5和50 g / ha的喹唑磷乙基，出苗前以750 mg / ha的二甲戊乐灵，在播种（DAS）后20和35天对农户进行两只手除草并进行杂草检查，并随机分组有四个复制品的设计。为了研究植物毒性，除上述处理外，还包括100 g / ha的喹喔啉乙酯。在实验领域，超过50％的杂草以E草属为主。结果表明，在除草处理中，50克/公顷的喹唑啉草乙酯在30年DAS和收获时均记录了最低的窄叶杂草密度和干重。杂草。在收获时用两只手除草对草类杂草的除草效率为50 g / ha的喹喔啉乙基，比最高（85.6％）的除草效率高81.3％。在以50 g / ha quizalofop-ethyl或两个HW处理的地块中，黑gram的枝条和荚果/植物，种子/荚果和谷物和秸秆的产量也更高。已发现Quizalofop-ethyl可以安全地进行黑名单分析，并且不会对后续农作物造成任何残留毒性。

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