化肥施用强度对中国粮食单产的影响分析——基于省级面板数据的分位数回归

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1000-0275|38|4|649-657

ISSN: 1000-0275

Source: 农业现代化研究, Vol.38, Iss.4, 2017-01, pp. : 649-657

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract