Soil Nutrient Characteristics of Ulmus pumila L. Forest at Different Ages in Daqingshan
Yuexin ZHANG, Yunxia MA, Xiuzhi MA, Jinwang ZHANG, Yuelin WANG, Haisheng YU
Journal of Agricultural Science and Technology . 2023, (12): 168 -176 .  DOI: 10.13304/j.nykjdb.2022.0737

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