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调查与研究稻恶苗病发生因素的初步研究王华生 徐 华 1(1)………………………………………………………………………………早稻秧田稻根结线虫病的发生调查初报杜树勋 1(3)………………………………………………………………………………水稻细菌性条斑病大田药剂防治试验炼
Investigation and Study on the Factors Affecting Rice Bakanae Disease Wang Wusheng Xu Hua 1 (1) ...................................................................................... Early Rice Preliminary investigation on the occurrence of rice root-knot nematode disease in rice seedlings DU Shu-xun1 (3) ................................................................................................................. Spot disease field drug prevention and control experiment refining