Response Characteristics of Plant Growth and Leaf Photochemical Activity of Sugar Beet Seedlings to Different Nitrogen Application Levels
ZHANG Yi-fei, YU Song, LI Cai-feng, WANG Yu-bo, DIAO Zhi-wei, ZHANG Xiao-xu, LIU Yang, YU Xue, XU Ying, HONG Xin, MA Feng-ming
J4 . 2013, (9): 1391 -1400 .  DOI: 10.11869/hnxb.2013.09.1391