50%YRC2388 WP防除水直播稻田杂草效果评价 |
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引用本文: | 程霞英,杨宗岐,刘耕田.50%YRC2388 WP防除水直播稻田杂草效果评价[J].天津农业科学,2004,10(2):47-50. |
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作者姓名: | 程霞英 杨宗岐 刘耕田 |
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作者单位: | 1. 廊坊师范学院生物系,廊坊,065000 2. 南开大学生命科学学院,天津,300072 3. 天津市宁河县农机局,天津,301500 |
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摘 要: | 对50%YRC2388WP新型水稻田除草剂的防除效果进行了研究。结果表明,播后6d用75~150g/hm2YRC2388WP处理,对稗草和千金子的防效分别为90.2%~100%和100%,播后9d用125~300g/hm2处理,对稗草和千金子的防效分别为91.5%~100%和99.1%~100%;播后9,12d用药,对水稻基本苗基本无影响;从考种结果看50%YRC2388WP播后6,9,12d用药的各处理,理论产量均有较大的提高。
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关 键 词: | 除草剂 防效 直播稻田 杂草 |
文章编号: | 1006-6500(2004)02-0047-04 |
修稿时间: | 2003年12月18 |
Evaluation of 50% YRC2388 WP Herbicidal Efficacy in Direct-seeded Rice Fields |
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Abstract: | YRC2388 WP is a new paddy land herbicide developed by Bayer company. Treatments of YRC2388 WP 75~150 g /ha applied after seeding 6 days and 125~300 g /ha applied after seeding 9 days had 90.2%~100%,100%and 91.5%~100%,99.1%~100% control efficacy against Echinochloa crusgalli and Leptochloa chinensis respectively; application of 9 and 12 days treatment had no effect on paddy seedling; theory yields of each treatments were increased. |
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Keywords: | herbicide control efficacy Direct-seeded Rice Field weed |
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