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秦巴区域农田30年间土壤肥力变化特征及施肥对策
何文
Farmland Soil Fertility in Qinba Area in 30 Years: Variation Characteristics and Fertilization Countermeasures
中国农学通报 . 2019, (31): 56 -62 .  DOI: 10.11924/j.issn.1000-6850.casb18050106