我国苹果主产区测土配方施肥技术实施效果评价——基于倾向得分匹配法的实证分析

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 2095-6924|16|3|343-350

ISSN: 2095-6924

Source: 农林经济管理学报, Vol.16, Iss.3, 2017-01, pp. : 343-350

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Abstract