不同氮磷钾水平下水稻纹枯病菌对井冈霉素敏感性研究
불동담린갑수평하수도문고병균대정강매소민감성연구
Study on sensitivity of rice sheath blight fungi ( Rhizoctonia solani ) to jing- gangmmycin on different level of nitrogen,phosphorus and potassium
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