ESTIMATION OF LEAF CANOPY NITROGEN CONCENTRATION WITH RED EDGE AREA SHAPE PARAMETER IN RICE
TIAN Yong-Chao, YANG Jie, YAO Xia, ZHU Yan, CAO Wei-Xing
Chin J Plant Ecol . 2009, (4): 791 -801 .  DOI: 10.3773/j.issn.1005-264x.2009.04.018