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Effects of Humic Acid and Humic Organic Fertilizer on Nutrient Allocation and
Fertilizer Use Efficiency of Maize
Yuan Lifeng,Huang Tengyue,Wang Gailing and Wang Xiaoling
Chinese Agricultural Science Bulletin . 2014, (36): 98 -102 .  DOI: 10.11924/j.issn.1000-6850.2014-1009