中国稻米

中国稻米 ›› 2021, Vol. 27 ›› Issue (2): 102-104.DOI: 10.3969/j.issn.1006-8082.2021.02.023

• 品种与技术 • 上一篇    下一篇

一次性安全除草剂剂量的优化及除草效果研究

李晓辉, 张金成*()   

  1. 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
  • 收稿日期:2020-11-10 出版日期:2021-03-20 发布日期:2021-03-20
  • 通讯作者: 张金成
  • 基金资助:
    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）

Study on Optimization of One-time Safe Herbicide Dosage and Weeding Effect

Xiaohui LI, Jincheng ZHANG*()   

  1. Qixing Branch of Heilongjinag Beidahuang Agricultural Co., Ltd., Jiansanjiang, Heilongjiang 156300, China
  • Received:2020-11-10 Online:2021-03-20 Published:2021-03-20
  • Contact: Jincheng ZHANG

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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。

关键词: 水稻, 除草剂, 剂量, 除草效果

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.

Key words: rice, herbicide, application rate, weeding effect

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