Chinese Journal OF Rice Science
Effects of Different Nitrogen Fertilizer Levels on Concentrations of Fe,Mn,Cu and Zn and Grain Quality in Rice (Oryza sativa)
HAO Hu-lin ,WEI You-zhang ,YANG Xiao-e ,FENG Ying ,WU Chun-yong
Chinese Journal of Rice Science . 2007, (4): 411 -416 .