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Control effects of herbicides on Hordeum vulgare and Panicum miliaceumin linseed field

Li Yuqi;Niu Shujun;Liu Minyan;Hu Guanfang;Institute of Plant Protection,Gansu Academy of Agricultural Sciences;  
Field trial was conducted in linseed field to evaluate control effects of seven herbicides on Hordeum vulgar Linn.and Panicum miliaceum Linn.The results showed that 108 g/L haloxyfop-R-methyl EC,15% fluazifop-P-butyl EC,240 g/L clethodim EC and10%quizalofop-P-ethyl EC were effective to control H.vulgare in linseed field.The plant and fresh weight control effects were all more than 97.39% 45 days after treatment at the dosages of 145.8,270,432 and90 g/hm2 and the yield of linseed increased more than91.05%.Their suitable dosages in large-scale demonstration and popularization were 145.8,270,432 and90 g/hm2,respectively.50 g/L pinoxaden EC,108 g/L haloxyfop-R-methyl EC,15% fluazifop-P-butyl EC,240 g/L clethodim EC,15% clodinafop-propargyl WP,10% quizalofop-P-ethyl EC and 12.5%sethoxydim EC were effective to control P.miliaceumin linseed field,the plant and fresh weight control effects were more than98.43%45 days after treatment at the dosages of 75,145.8,270,432,135,90 and 412.5 g/hm2 and the yield of linseed increased more than 84.41%.Their suitable dosages in large-scale demonstration and popularization were 75,145.8,270,432,135, 90 and 412.5 g/hm2,respectively.These herbicides were safe to linseed at the recommended dosages.
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