| 肖学明，沈雪峰，陈勇.40%双草醚悬浮剂防除水稻直播田杂草试验[J].广东农业科学,2014,41(7):88-91 |
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40%双草醚悬浮剂防除水稻直播田杂草试验 |
| Control effect of 40% Bispyribac-sodium SCon weeds in direct seeding rice field |
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| DOI： |
| 中文关键词: 双草醚 直播水稻 杂草 安全性 |
| 英文关键词: Bispyribac-sodium direct seeding rice weed safety |
| 基金项目:国家公益性行业(农业）科研专项(201303031 |
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| 中文摘要: |
| 2012要2013 年采用大田药效试验的方法，研究了40%双草醚悬浮剂对于华南地区直播早稻和晚稻田杂
草的防除效果、最佳使用剂量及其安全性。结果表明：该药剂在水稻3~4 叶期进行茎叶喷雾处理，使用推荐剂量
26.25~30.0 g/hm2(a.i.），能有效防除稗草等1 年生禾本科杂草及异型莎草、碎米莎草等莎草科杂草和鸭舌草等阔叶杂
草，在推荐使用剂量内对水稻安全，高浓度处理没有药害发生。 |
| 英文摘要: |
| Field efficacy test method was used to determine the effect of 40% Bispyribac-sodium SC on weeds in
direct seeding rice field and to investigate the rice safety and the weeds control efficacy in the early season rice and late
season rice field from 2012 to 2013 in south China. The results showed that the control efficacy on grasses weeds
也Echinochloa crusgalli (L.) Beauv, cyperaceae weeds (Cyperus difformis L., Cyperus iria L.) and annual broadleaf weeds
Monochoia vaginalis(Burm.f.) significantly decreased by 26.25~30.0 g/hm2a.i.40% Bispyribac-sodium SC when the rice
was in 3-4 leaf stage with spray processing. The rice was safety with the recommended dose, and there was no phytotoxicity
with higher concentration. |
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