| 除草剂配合地膜覆盖对甘薯田杂草防除及增产的效果 |
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| 引用本文： | 范建芝,段成鼎,井水华,王春兰,黄成星.除草剂配合地膜覆盖对甘薯田杂草防除及增产的效果[J].杂草科学,2016(1):61-64. |
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| 作者姓名： | 范建芝 段成鼎 井水华 王春兰 黄成星 |
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| 作者单位： | 济宁市农业科学研究院,山东济宁,272031 |
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| 基金项目： | 国家甘薯产业技术体系建设专项(编号CARS－11)。 |
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| 摘 要： | 选用96%精异丙甲草胺乳油、33%二甲戊乐灵乳油2种除草剂,结合地膜覆盖栽培进行甘薯田杂草防除效果试验。结果表明:覆盖黑色地膜和所用2种除草剂均可有效防除甘薯田杂草;30 d时,各措施对杂草的防除效果均在85%以上,以覆盖黑色地膜防效最高;45 d时,覆盖黑色地膜和透明地膜+喷施33%二甲戊乐灵乳油对杂草的防除效果较好,杂草株防效、鲜质量防效均在90%以上;采用地膜覆盖或除草剂除草均能提高甘薯鲜薯产量,与空白对照相比,覆盖黑色地膜处理增产极显著,达到27.70%,透明膜+除草剂的2个处理增产显著,分别为18.75%、21.33%;喷施除草剂但不覆地膜的2个处理增产不显著,分别为5.02%、6.79%。综合试验结果可知,甘薯黑色地膜覆盖栽培对甘薯田杂草防效与试验用除草剂效果相当,黑色地膜覆盖不但可有效防除甘薯田杂草,而且可提高鲜薯产量,值得推广。
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| 关 键 词： | 甘薯 二甲戊乐灵 精异丙甲草胺 黑色地膜 防效 |
Weed Control and Yield Increase by Herbicides Combined with Plastic Film Mulch in Sweet Potato Fields |
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| Abstract: | The efficacy of two herbicides (96% s-metolachlor EC and 33% pendimethalin EC)combined with plastic film mulching cultivation for controlling weeds in sweet potato fields was studied.Both black plastic film mulching cultiva-tion and the two herbicides effectively controlled weeds in sweet potato fields.All treatments provided more than 85%control at 30 days after treatment,the best control being obtained with the black plastic mulching treatment.At 45 days after treatment,black plastic mulching and 33%pendimethalin EC effectively controlled weeds above 90%based on total strain and fresh weight.The use of plastic film mulching or herbicides increased fresh tuber yields.Compared with the CK,black plastic mulching significantly increased tuber yield by 28%as well as transparent plastic film mulching combed with herbicides that increased yield by 18%to 21%whereas herbicides without plastic film mulching only increased yield by 5% to 7%.Adoption of black plastic film cultivation should be promoted in sweet potato production for effectively controlling weeds and increasing fresh tuber yield. |
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| Keywords: | sweetpotao pendimethalin s-metolachlor black plastic film control efficacy |
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