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疣草化学防除效果及其与水稻产量的关系 被引量:1

The Relation of the Chemical Control Ratio on Murdannja keisak and Paddy Output
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摘要 在盆栽试验的基础上,研究了10种除草剂对疣草的防除效果,分析了防除效果与水稻产量的关系。结果表明,插秧前用药50%马歇特效果最好,株防效达90%;53%赛龙、50%马歇特和30%稻草克鲜重防效均在90%以上。插秧后用药,1%韩乐天防鲜重效果达95%以上。53%赛龙、1%韩乐天、50%马歇特产量最高,比CK分别增产74.41%、58.27%、57.51%。有效穗数对水稻产量的直接通径系数最大,为0.716638,株防效、鲜重防效和分蘖数通过有效穗数对水稻产量的间接通径系数均较大,分别为0.525439、0.583343和0.667333。 On the basis of basin-planting experiment, the tests have contrasted the control ratio of 10 kinds weed killer to Murdannja keisak, and have analysed the relation of control ratio and paddy output. Show as a result: using 50%Machete before transplanting rice seedlings is best, and the control ratio with quantity of weed reaches 90%. And the control ratio with weigh of weed all reach 90% more by using 53%Mefenacet+Bensulfuron, 50%Machete and 30% Butachlor+Oxadiazon.The control ratio with weigh of weed by using 1%Pyanchor after transplanting rice seedlings reaches 95% more. 53%Mefenacet+Bensulfuron , 1%Pyanchor and 50%Machete had the best output. They respectively increase production 74.41%, 58.27% and 57.51% than CK. The direct Path coefficient of effective fringe quantity to paddy output is the biggest. It is 0.716638. The indirect Path coefficient of the control ratio with quantity of weed , the control ratio with weigh of weed and tillered quantity by effective fringe quantity to paddy output are bigger. They are 0.525439, 0.583343 and 0.667333.
出处 《中国农学通报》 CSCD 2004年第3期227-229,272,共4页 Chinese Agricultural Science Bulletin
关键词 疣草 水稻田杂草 化学防除 除草剂 剂量 药效试验 水稻产量 Murdannja keisak Control ratio Paddy output Path coefficient
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  • 1中国科学院植物研究所.中国高等植物图鉴(第五册)[M].北京:科学出版社,1976.. 被引量:9
  • 2刁正俗编著..中国常见水田杂草[M].重庆:重庆出版社,1983:266.
  • 3杨飚,张宗俭,林长福,杨玉廷,秦宵然,于海峰.疣草及其化学防除[J].杂草科学,2000,18(3):36-37. 被引量:3

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