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中国农学通报
氮磷钾对红花草固氮根瘤菌生长及种植后土壤肥力的影响
刘亚柏,王润芳
Effect of NPK on Clover Nitrogen-fixing Rhizobia Growth and Soil Fertility after Plantation
Liu Yabo and Wang Runfang
中国农学通报 . 2015, (36): 220 -225 .  DOI: 10.11924/j.issn.1000-6850.casb15090098