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首页> 外文期刊>Indian Journal of Weed Science >Effect of Puddling, Water and Weed Management Practices on Weed Dynamics and Yield of Transplanted Rice (Oryza sativa L.)
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Effect of Puddling, Water and Weed Management Practices on Weed Dynamics and Yield of Transplanted Rice (Oryza sativa L.)

机译：水，水和杂草管理措施对移栽水稻（Oryza sativa L.）杂草动力学和产量的影响

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摘要

The dominant weed flora were Echinocloa colona (L.), Cyperus djfformis L. and Ammania braccifera (L.) Rottb. Intensive puddling with continuous submergence recorded the lowest density and dry weight of weeds with 40% increased grain yield over normalpuddling with irrigation at one day after disappearance of ponded water. Among the weed management practices, oxadiargyl at 75 g ha~(-1) supplemented with HW at 40 DAT recorded the lowest density and dry weight of weeds with higher weed control efficiency and grain yield, which was comparable with hand weeding twice scheduled at 20 and 40 DAT. On an average, oxadiargyl at 75 g ha~(-1) supplemented with HW at 40 DAT registered 39.5% higher grain yield as compared to unweeded control. Cinmethylin at 75 gha~(-1) was least effective in controlling the weeds. Intensive puddling with continuous submergence combined with oxadiargyl at 75 g ha~(-1) supplemented with HW at 40 DAT was the best integrated weed management practice to achieve broad spectrum weed control and higher grain yield in transplanted rice.
机译：杂草的优势菌群为埃希氏菌（L.），香附子（Cyperus djfformis L.）和小球藻（Ammania braccifera，L。）Rottb。在淹没水消失一天后，连续浸水的密集水坑记录了最低的杂草密度和干重，谷物产量比普通水坑增加了40％。在杂草治理实践中，以40 DAT补充75 g ha〜（-1）的恶二炔与HW记录的杂草密度和干重最低，杂草控制效率和谷物产量更高，与手工除草两次（预定20次）相当和40 DAT。与未除草的对照相比，平均而言，以75 g ha〜（-1）的恶二炔基和40 DAT的HW补充的谷物单产高出39.5％。 75 gha〜（-1）的肉桂粉对控制杂草效果最低。在75 g ha〜（-1）的草甘膦上进行连续深浸处理与40 DAT的HW配合使用是最佳的综合杂草处理方法，可实现广谱控制杂草和提高水稻产量。

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