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中文
Evaluation on Farmland Soil Fertility in Danjiangkou Reservoir Area Based on Principal Component Analysis and Hierarchical Cluster Analysis:A Case Study of Xichuan County
ZHANG Jun, CAI Debao, YANG Shuqiong, CHEN Xiuwen, CHEN Jibao
Journal of Henan Agricultural Sciences . 2021, (
4
): 79 -87 . DOI: 10.15933/j.cnki.1004-3268.2021.04.011
