2甲4氯钠粉剂防除稻田扁杆镳草药效试验  

Experiment on Controlling 5. Planiculmis Fr. Schmidt Weeds in Rice Field with MCPA-Na NP

作　　者：王凤芝[1] 孙福华[1] 张晓东[1] 

机构地区：[1]河北省农林科学院滨海农业研究所,河北唐海063200

出　　处：《河北农业科学》2005年第4期40-42,共3页Journal of Hebei Agricultural Sciences

摘　　要：采用不同剂量对比试验,研究了2甲4氯钠粉剂对稻田扁杆镳草的防除效果。结果表明:在水稻分蘖盛期,用2甲4氯钠粉剂2．25 kg／hm2进行茎叶喷雾,可有效防除杂草,且对水稻生长无不良影响。Using the method of contrast trial, the effect on controlling S. planiculmis Ft. Schmidt weeds applying different MCPA-Na NP dosage in rice field was researched. The result indicated that the controlling efficacy reach to 97.2% and the efficacy on restraining fresh weight of remaine weeds was 99.2% , applying 56% MCPA-Na NP 2. 25 kg/hm^2 in peak tillering stage with the method of spraying herbicide on stem, which didn t affect rice growth.

关 键 词：2甲4氯钠粉剂 水稻 扁杆镳草 药效 安全性 

分 类 号：S435.11[农业科学—农业昆虫与害虫防治] S451.2[农业科学—植物保护]