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首页> 外文期刊>Indian Journal of Weed Science >Crop-weed competition studies in gardenpea (Pisum sativum) under mid-hill conditions of North-West Himalayas.
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Crop-weed competition studies in gardenpea (Pisum sativum) under mid-hill conditions of North-West Himalayas.

机译：喜马拉雅山西北部中坡条件下的garden豆（Pisum sativum）作物杂草竞争研究。

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A set of eight treatments comprising weedy and weed-free conditions upto 30, 60 and 90 days after sowing and upto harvest was evaluated at the experimental farm, Hawalbagh of Vivekananda Parvatiya Krishi Anusandhan Sansthan, Almora during winter (rabi) seasons of 1999-2000 and 2000-01 to find out the critical period of crop-weed competition in gardenpea [Pisum sativum (L.) sub sp. hortense Asch and Graebn]. Weed competition index increased with an increase in duration of weedy condition ranging from 1.4 to 34.7 during winter 1999-2000 and 5.4 to 48.7 during winter 2000-01. On the other hand, increase in weed-free period from sowing to harvest decreased weed competition index to 2.0 from 34.7 during winter 1999-2000 and 3.3 from 48.7 during winter 2000-01. Weed-free condition beyond 60 days after sowing did not bring significant improvement in green pod yield. The highest additional net returns (Rs. 6,374/ha) and additional net returns/rupee invested (0.64) were recorded where the plots were kept weed-free upto 60 days after sowing. The critical period for crop-weed competition was observed to be between 30-60 days after sowing when the crop should be kept free from weeds to prevent the potential yield loss and to economize weeding in gardenpea.
机译：在1999-2000年冬季（狂犬病）季节，在阿尔韦拉的Vivekananda Parvatiya Kawshi Anusandhan Sansthan的实验农场对实验进行了一套八种处理，包括播种和收获后30、60和90天的杂草和无杂草条件。和2000-01年找出garden豆作物杂草竞争的关键期[Pisum sativum（L.）sub sp。霍滕塞·阿施和格莱本]。杂草竞争指数随着杂草持续时间的增加而增加，在1999-2000年冬季为1.4至34.7，在2000-01年冬季为5.4至48.7。另一方面，从播种到收获的无草期增加使杂草竞争指数从1999-2000年冬季的34.7降至2.0，从2000-01冬季的48.7降至3.3。播种后60天以上的无杂草状况并未使绿荚果产量显着提高。在播种后60天内保持无杂草地块的情况下，记录了最高的额外净收益（6,374卢比/公顷）和所投资的额外净收益/卢比（0.64）。观察到作物杂草竞争的关键时期是在播种后的30-60天之间，此时应使作物远离杂草，以防止潜在的产量损失并节省garden豆的除草成本。

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