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首页> 外文期刊>Indian Journal of Weed Science >Eco-efficacy of pretilachlor 50% EC in transplanted winter rice and itsresidual effect on lentil
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Eco-efficacy of pretilachlor 50% EC in transplanted winter rice and itsresidual effect on lentil

机译：预防冬季水稻预测50％EC的生态疗效及对扁豆的Itserivual影响

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摘要

A field experiment was conducted during Kharif seasons of 2014-15 and 2015-16 at Bidhan Chandra Krishi Viswavidyalaya (BCKV), West Bengal to evaluate the effect of pretilachlor 50% EC on growth of composite weed flora and productivity of winter (Kharif) rice (Oryza sativa L.). The experiment comprised of eight treatments following a randomized block design with three replications. Experimental findings revealed that hand weeding twice at 15 and 30 DAT effectively controlled the grasses, sedges and broad-leaved weeds, which recorded statistical parity with the application of pretilachlor 50% EC at 750 g/ha followed by its lower dose at 600 g/ha. Grain yield losses amounted to 31.4-50.1% due to uncontrolled weed growth as compared to different weed control treatments. Among the different herbicidal treatments, pretilachlor 50% EC at 750 and 600 g/ha recorded higher weed control efficiency, yield attributes and grain yield (4.25 and 4.20 t/ha, respectively) of rice, which did not affect the germination and seed yield of succeeding lentil crop during both the years. Besides, soil beneficial microflora was not negatively influenced in long run. Considering bio-efficacy, economics and microbial study, pretilachlor 50% EC at 600 g/ha could be a better alternative for weed management and may be recommended for obtaining a higher yield of transplanted winter rice in the Gangetic Inceptisol of West Bengal.
机译：在Bidhan Chandra Krishi Viswavidyalaya（BCKV）的Kharif Seasons期间进行了一个田间实验，西孟加拉邦评估了预热植物50％EC对复合杂草植物生长的影响和冬季（Kharif）米的生产率（Oryza Sativa L.）。在随机嵌段设计之后，由三种复制组成的实验组成。实验结果表明，在15和30日的情况下，杂草两次，有效地控制了草，曲面和阔叶杂草，其记录统计差异在750克/公顷的预洗涤50％EC的应用，然后在600克/哈。与不同杂草对照治疗相比，由于不受控制的杂草增长，谷物产量损失达31.4-50.1％。在不同的除草剂处理中，预热50％EC在750和600g / ha中记录了更高的杂草控制效率，产量属性和谷物产量（分别为4.25和4.20吨/公顷），这并不影响萌发和种子产量在这两年内接下来的扁豆作物。此外，土壤有益的微生物在长期不会受到负面影响。考虑到生物疗效，经济学和微生物研究，600克/公顷的预热素50％EC可能是杂草管理的更好的替代方案，可能建议在西孟加拉邦的甘甘甘甘甘露甘露甘露群中获得更高的移植冬季产量。

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