除草剂混配施用对棉田常见杂草的防除效果 |
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引用本文: | 张桂花,周斌,王茂云,等. 除草剂混配施用对棉田常见杂草的防除效果[J]. 江西棉花, 2014, 0(3): 12-16 |
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作者姓名: | 张桂花 周斌 王茂云 等 |
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作者单位: | [1]菏泽市农业科学院,山东菏泽274000; [2]山东农业大学,山东泰安271018 |
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基金项目: | 山东省现代农业产业体系棉花产业创新团队资金支持项目(SDAIT-07-011-15). |
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摘 要: | 为了检验除草剂防除棉田杂草效果,以三氟啶磺隆、嘧草硫醚和精喹禾灵之间不同剂量的混配施用.试验表明:三氟啶磺隆和精喹禾灵两种混用及三氟啶磺隆、嘧草硫醚和精喹禾灵3种混用均对棉田杂草都有较好的防除效果.施药后7天杂草表现药害症状.施药后20天,三氟啶磺隆与精喹禾灵两种除草剂混用,随着三氟啶磺隆用量的增加对禾本科杂草的防效由89.2%增加到95.3%,对阔叶类杂草的防效由86.3%增加到94.9%,总体株防效由87.8%增加到95.2%;三氟啶磺隆与精喹禾灵、嘧草硫醚混剂3种除草剂混用,在精喹禾灵用量相同的条件下,增加三氟啶磺隆或嘧草硫醚的用量,对禾本科杂草、阔叶类杂草、杂草总体株防效均提高.施药后40天的株防效和鲜重防效均80%以上,说明混配药剂的持效期较长.
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关 键 词: | 三氟啶磺隆 嘧草硫醚 精喹禾灵 除草剂 杂草 防效 |
Controlling Effect of Three Kinds of Herbicides Mixed Application on Common Weed in Cotton Field |
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Affiliation: | Zhang Guihua , Zhou Bin , Wang Maoyun, Wang Zhaozhen (1.Aeademy of Agricultural Sciences of Heze City, Heze274000, China; 2. Shandong Agricultural University., Tai'an 271018, China) |
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Abstract: | In order to test the controlling effect of herbicide on weed in cotton field, the author mixed trifloxysulfuron, pyrithiobae - sodium and quizalofop - p - ethyl in different doses. The test showed that: mixing trifloxysulfuron and quizalofop - p - ethyl had same controlling effect with mixing trifloxysulfuron, pyfithiobac - sodium and quizalofop - p - ethyl. Weeds showed injury symptoms after 7days, 20 days after the application, trifloxysulfuron mixed with quizalofop - p - ethyl, Controlling effect of gramineous weeds increased from 89.2 % to 95.3 % with the increasing of trifloxysulfuron ; effective to control broadleaf weeds increased from 86.3 % to 94.9 %, the overall plant efficiency increased from 87.8 % to 95.2 % ; Mixture of 3 herbicides, in the condition of same amount of quizalofop - p - ethyl, added the content of tfifloxysulfuron or pyrithiobac - sodium, it could improved the controlling effect on gramineous weeds, broadleaf weeds, weed overall plant.40 days after spraying, plant prevention effect and fresh weight controlling effect were above 80%, the longer effective period mixed reagent. |
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Keywords: | Trifloxysulfuron Pyrithiobac - sodium Quizalofop - p - ethyl Herbicide Weed Control effect |
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