Effects of Water and Nitrogen Coupling in Winter Wheat on Leaves NRA, Plant Nitrogen Absorption and Yield
YANG Shi-li, JIA Xiu-ling, ZHANG Feng-lu, MA Rui-kun, MENG Xiang-fa, LI Ai-hua
ACTA AGRICULTURAE BOREALI-SINICA . 2008, (4): 124 -128 .  DOI: 10.7668/hbnxb.2008.04.029