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新产区土壤和三七中重金属元素的累积状况
杨牧青
Accumulation of Heavy Metal Elements in Soil and Panax Notoginseng in New Producing Areas
中国农学通报 . 2018, (12): 91 -97 .  DOI: 10.11924/j.issn.1000-6850.casb17030077