| 一次性安全除草剂剂量的优化及除草效果研究 |
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| 引用本文： | 李晓辉,张金成.一次性安全除草剂剂量的优化及除草效果研究[J].中国稻米,2021,27(2):102-104. |
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| 作者姓名： | 李晓辉 张金成 |
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| 作者单位： | 黑龙江北大荒农业股份有限公司七星分公司,黑龙江 建三江 156300 |
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| 基金项目： | 黑龙江垦区全国基层农技推广体系改革与建设补助项目——长期示范基地建设（七星农场） |
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| 摘 要： | 试验比较了几种除草剂不同剂量的除草效果。结果表明,施药后45 d,葱封200 mL/667 m2处理（T4）、葱封160 mL/667 m2处理（T3）的鲜质量防效分别为99.99%为99.29%;T3处理的产量为640.31 kg/667 m2,较常规对照（机插前5~7 d每667 m2施秋之宝125 mL、西草净80 mL,机插后15 d每667 m2施马歇特125 mL、西草净50 mL）高29.12 kg/667 m2;T3处理的效益较常规对照高32.51元/667 m2,其余处理均比常规对照低;T3处理的糙米率、整精米率分别为83.3%和76.2%,其中,整精米率较常规对照高1.0个百分点。
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| 关 键 词： | 水稻 除草剂 剂量 除草效果 |
| 收稿时间： | 2020-11-10 |
Study on Optimization of One-time Safe Herbicide Dosage and Weeding Effect |
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| Xiaohui LI,Jincheng ZHANG.Study on Optimization of One-time Safe Herbicide Dosage and Weeding Effect[J].China Rice,2021,27(2):102-104. |
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| Authors: | Xiaohui LI Jincheng ZHANG |
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| Institution: | Qixing Branch of Heilongjinag Beidahuang Agricultural Co., Ltd., Jiansanjiang, Heilongjiang 156300, China |
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| Abstract: | The weeding effects of several herbicides were tested and compared. The results showed that, 45 days after herbicide application, the fresh weight control effect of Congfeng 200 mL/667 m2 treatment （T4） and Congfeng 160 mL/667 m2 treatment （T3） were 99.99% and 99.29%, respectively. The yield of T3 treatment was 640.31 kg/667 m2, which was 29.12 kg/667 m2 higher than the conventional control （apply Qiuzhibao 125 mL and Xicaojing 80 mL every 667 m2 at 5~7 days before machine transplanting seedling, apply Maxiete 125 mL and Xicaojing 50 mL at 15 d after machine transplanting seedling）. The benefit of T3 treatment is 32.51 yuan/667 m2 higher than the conventional control, and the other treatments are lower than the conventional control. The brown rice rate and whole rice rate of T3 treatment were 83.3% and 76.2%, respectively. Among them, the whole rice rate was 1.0 percentage point higher than the conventional control. |
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| Keywords: | rice herbicide application rate weeding effect |
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