五氟磺草胺等6种除草剂对直播稻田高龄稗草的生物活性及田间控制效果
오불광초알등6충제초제대직파도전고령패초적생물활성급전간공제효과
Biological activity and control effect of six herbicides to large Echinochloa crusgalli (L.) Beauv.in direct-seeding rice field
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