LI Wei, LI Xu-hua, TANG Shen-xin, et al. Effect of Controlled-release Urea Combined with Common Urea on the Grain Yields of Summer Maize and Distribution of Soil Ammonium and Nitrate Content[J]. 2011, 25(6).
LI Wei, LI Xu-hua, TANG Shen-xin, et al. Effect of Controlled-release Urea Combined with Common Urea on the Grain Yields of Summer Maize and Distribution of Soil Ammonium and Nitrate Content[J]. 2011, 25(6).DOI:
Field experiment were carried out on grain yield of summer maize to determine the effect of different proportions of water-base controlled-release coated urea of 60 d release duration combined with conventional urea as topdressing on nitrogen utilization
nitrogen agronomic efficiency
nitrogen partial productivity
nitrogen harvest index and nitrogen accumulation.Dynamic distribution of nitrate content in soil was also studied.The findings indicated that the treatment of controlled-release urea combined with ...