基于“3414”模型对西辽河平原春玉米氮磷钾效应及经济效益的研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1003-8701|40|4|43-47

ISSN: 1003-8701

Source: 东北农业科学, Vol.40, Iss.4, 2015-01, pp. : 43-47

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Abstract