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Effect of Humic acids on Absorption and Utilization of Mineral Elements for Sweetpotato (Ipomaea batatas LAM.)
柳洪鹃 张立明 李作梅 张海峰 史春余
Chinese Agricultural Science Bulletin . 2011, (9): 171 -175 .  DOI: 10.11924/j.issn.1000-6850.2010-2624