Control Effects of Different Doses of MCPA-Na Against Weeds in Foxtail Millet Field

• 作者: Cao Xiaoning Chen Ling Liu Sichen Qiao Zhijun Tian Xiang Wang Haigang Wang Junjie
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 控制效果 谷子生产 最佳剂量 二甲四氯 钠盐 杂草 MCPA 设计控制
• 年，卷（期）: pdapzwbchyj_2017,（1）
• 页码范围: 24-26
• 页数: 3页
• 分类号: S515.042

摘要

[Objective]The paper was compare the control effects of different doses of MCPA-Na on weeds in foxtail millet field.[Method]Different doses of MCPA-Na were sprayed on foxtail millet field,while artificial weeding and spraying water was designed as control. The strain control effect and fresh weight control effect were calculated. [Result]The strain control effect and fresh weight control effect of 2 250 g/hm~2 MCPA-Na at 25 and 40 d post spraying were the best,and the fresh weight control effects reached 84. 19% and 87. 23%,respectively. Compared to CK,the yield increase effect of 1 500 g/hm~2 was the best,and the yield increase rate was 54. 31%; followed by 1 125 g/hm~2. Generally,1 500 g/hm~2 was the best dosage of MCPA-Na in foxtail millet production. [Conclusion]The paper provided a theoretical basis for screening the best dose of herbicide in foxtail millet production.