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Effect of Different Nitrogen Fertilizer Proportion on Yield and Efficiency of Nitrogen Fertilizer Utilization of Rice in Cold Region
王丽萍 刘华招 杜金岭 顾春梅 刘延 那永光
Chinese Agricultural Science Bulletin . 2010, (13): 235 -238 .  DOI: 10.11924/j.issn.1000-6850.2009-2691