CAJ | 학술논문

为明确30％氰草·莠去津悬乳剂与30％磺草·莠去津悬浮剂对玉米田杂草的防除效果以及在玉米不同叶龄期使用的安全性，开展了2个除草剂品种在玉米不同叶龄处理与90％莠去津水分散粒剂播后芽前土壤处理对田间杂草防效和产量影响的田间对比评价试验。结果表明，1575g a．i．/hm230％磺草·莠去津悬浮剂在玉米3～4叶期和6～7叶期施用、1350 g a．i．/hm230％氰草·莠去津悬乳剂在玉米3～4叶期施用对玉米安全，杂草防效好，玉米产量比清水对照增加10％以上，杂草防效和玉米产量均优于2160 g a．i．/hm290％莠去津水分散粒剂播后芽前土壤处理；1350 g a．i．/hm230％氰草·莠去津悬乳剂在玉米6～7叶期施用对玉米有药害，其杂草防效和玉米产量均不及2160 g a．i．/hm290％莠去津水分散粒剂播后芽前土壤处理。
위명학30％청초·유거진현유제여30％광초·유거진현부제대옥미전잡초적방제효과이급재옥미불동협령기사용적안전성，개전료2개제초제품충재옥미불동협령처리여90％유거진수분산립제파후아전토양처리대전간잡초방효화산량영향적전간대비평개시험。결과표명，1575g a．i．/hm230％광초·유거진현부제재옥미3～4협기화6～7협기시용、1350 g a．i．/hm230％청초·유거진현유제재옥미3～4협기시용대옥미안전，잡초방효호，옥미산량비청수대조증가10％이상，잡초방효화옥미산량균우우2160 g a．i．/hm290％유거진수분산립제파후아전토양처리；1350 g a．i．/hm230％청초·유거진현유제재옥미6～7협기시용대옥미유약해，기잡초방효화옥미산량균불급2160 g a．i．/hm290％유거진수분산립제파후아전토양처리。
The weed control efficacy and selectivity of the herbicide mixtures cyanazine · atrazine 30%SE and sulcotrione · atrazine 30%SC were compared at different growth stages of maize with the standard herbicide atrazine 90%WG applied to soil between sowing and emergence in a field experiment .Both sulcotrione · atrazine 30%SC (1 575 g a.i./hm2 ) sprayed at the 3~7 leaf stage and cyanazine · atrazine 30%SE (1 350 g a.i./hm2 ) at 3~4 leaf stage not only provided adequate weed control but also increased corn yield by more than 10%over a control treatment with only water .Their effects weed in control and yields increase were better than those of atrazine 90%WG applied to soil between sowing and emergence . Cyanazine· atrazine at the same dose,however,was not safe to maize at 6~7 leaf stage,and both weed control and crop yield were inferior ro those achieved with 2 160 g a.i./hm2 atrazine.