Effects of Close Planting and Nitrogen Application Rates on Grain Yield and Nitrogen Utilization Efficiency of Different Density-Tolerance Maize Hybrids
LI GuangHao, LIU Juan, DONG ShuTing, LIU Peng, ZHANG JiWang, ZHAO Bin, SHI DeYang
Scientia Agricultura Sinica . 2017, (12): 2247 -2258 .  DOI: 10.3864/j.issn.0578-1752.2017.12.006