| 路战远,张向前,王玉芬,程玉臣,李娟,张德健.化学除草剂对保护性耕作燕麦田杂草的防除效果[J].干旱地区农业研究,2018,36(4):252~258 |
| 化学除草剂对保护性耕作燕麦田杂草的防除效果 |
| Effect on weeds control in the conservation-tillage oat field of chemical herbicide |
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| DOI：10.7606/j.issn.1000-7601.2018.04.36 |
| 中文关键词: 保护性耕作燕麦田 杂草 化学除草剂 防除效果 内蒙古 |
| 英文关键词:conservation tillage oat field weeds chemical herbicide control efficiency inner mongolia |
| 基金项目:内蒙古自治区科学技术厅科技计划项目（201702105）；内蒙古自治区重大专项（20161500）;内蒙古自治区科技计划重点项目（20151206） |
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| 中文摘要: |
| 为探究内蒙古保护性耕作燕麦田间杂草的发生规律，控制杂草生长过盛，增加燕麦产量，调查了呼和浩特市武川县上秃亥乡燕麦田间杂草种类并考察各类化学除草剂对其防除效果。结果表明：保护性耕作燕麦田分布的杂草种类分属6科13种，主要危害杂草为藜、猪毛菜和狗尾草，发生时间集中于5月中旬—6月中上旬。试验所选2,4-D丁酯、苯磺隆、草甘膦、二甲四氯、辛酰溴苯腈5种除草剂对保护性耕作燕麦田杂草均有防效，单一防除效果依次为：2,4-D丁酯>10%苯磺隆>75%苯磺隆>草甘膦>二甲四氯>辛酰溴苯腈。综合防除效果以收获后900 ml·hm-2草甘膦+苗期300 g·hm-2 二甲四氯+300 ml·hm-22,4-D丁酯处理最好，株防效和鲜重防效均在96.4%左右，且鲜重防效效果显著，燕麦增产幅度超100%，每公顷纯收益最高，为6 618.0元，在农业生产中优先推荐。 |
| 英文摘要: |
| In order to explore the law of weed occurrence, to control the growth of weeds and to increase the oat yields in oat field under conservation tillage in Inner Mongolia, this study mainly investigated the species of weeds in the oat fields of Shangbaihai Township, Wuchuan County, Hohhot City, and the various effects of chemical herbicides’ prevention and cure of weeds. The results show: there were weeds from 13 species of 6 families in oat field under conservational tillage. Quinoa, salsola and bristlegrass were the three major weeds, which occurred mainly in mid May to early June. 5 herbicide of 2, 4-D butyl ester, tribenuron-methyl, glyphosate, chipton, bromoxynil, octanoate all had control effect on wees in the conservation-tillage oat field.The weed control effect of single herbicide in descending order was 2, 4-D butyl ester >10% tribenuron-methyl >75% tribenuron-methyl > glyphosate > chipton > bromoxynil octanoate. In addition, the combined effects of 300 ml·hm-2 2 2,4-D butyl ester +300 g·hm-2 chipton in seedling stage, and 900 ml·hm-2 glyphosate after harvest was best. The control effect for single plant and for plant fresh weight were both around 96.4%, with control effect for plant fresh weight being significant. The increasing of oat yield was more than 100%, the highest net economic income reached 6 618.0 RMB·hm2, which is recommended as a priority in agricultural production． |
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