| 旱稻田杂草的发生及除草剂的筛选研究 |
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| 引用本文： | 李俊周,王晓飞,张静,杜彦修,赵全志.旱稻田杂草的发生及除草剂的筛选研究[J].河南农业科学,2010(12). |
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| 作者姓名： | 李俊周 王晓飞 张静 杜彦修 赵全志 |
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| 基金项目： | 河南省重大公益性科研项目 |
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| 摘 要： | 旱稻田杂草的发生是影响旱稻产量的一个重要因素。为明确旱稻田杂草发生规律和筛选合适的旱稻田除草剂,调查了旱稻田杂草的发生情况,并进行了5种常用除草剂达93.3%的防治剂量及复配药效试验。结果表明:旱稻田杂草种类多、数量大,播后20 d是杂草萌发高峰期。3 000～3 150 mL/hm2旱稻除草剂1号和3 750 mL/hmm2农思它对旱稻田杂草的防除效果达93.39%。2种除草剂之间相互复配的效果都不好。多种除草剂复配可采用旱稻除草剂1号+丁草胺+农思它、旱稻除草剂1号+丁草胺+二甲四氯、旱稻除草剂1号+农思它+果尔,此3种方案防效较好,防效均达95%以上。
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| 关 键 词： | 旱稻 除草剂 杂草 筛选 |
Study on the Weeds Occurrence and Screening of Herbicides for Upland Rice Field |
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| LI Jun-zhou,WANG Xiao-fei,ZHANG Jing,DU Yan-xiu,ZHAO Quan-zhi.Study on the Weeds Occurrence and Screening of Herbicides for Upland Rice Field[J].Journal of Henan Agricultural Sciences,2010(12). |
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| Authors: | LI Jun-zhou WANG Xiao-fei ZHANG Jing DU Yan-xiu ZHAO Quan-zhi |
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| Abstract: | Weeds are important factors that influence the output of upland rice in upland rice field.In order to characterize weeds in upland rice field and select the suitable herbicides,the categories and number of weeds in upland rice field were investigated at different time after sowing and efficacy of herbicides using different herbicides and concentrations were assessed.The results showed that the features of weeds in upland rice field were various varieties,large quantities and rapid germination.Upland-Rice-Herbicide No.1 with 3000-3150mL/ha and Ronstar with 3750mL/ha had good control effects 93.39%.The effects of mixture of two herbicides were not good.Herbicide mixture(Upland-Rice-Herbicide No.1 + Butachlor + Ronstar,Upland-Rice-Herbicide No.1 + Butachlor + MCPA,Upland-Rice-Herbicide No.1 + Ronstar + Goal) had good control effect(95%) and could be adopted in upland rice field. |
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| Keywords: | Upland rice Herbicides Weed Screening |
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