Effect of Type and Application Rate of Nitrogen Fertilizer on Development and Nitrogen Utilization in Summer Maize
YI Zhen-xie, WANG Pu, ZHANG Hong-fang, SHEN Li-xia
ACTA AGRICULTURAE BOREALI-SINICA . 2006, (1): 115 -120 .  DOI: 10.3321/j.issn:1000-7091.2006.01.026