品种质量改进与农业生产率提高——基于近代棉业调查的实证研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1001-4799|43|3|63-70

ISSN: 1001-4799

Source: 湖北大学学报:哲学社会科学版, Vol.43, Iss.3, 2016-01, pp. : 63-70

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Abstract