Estimating leaf nitrogen content with near infrared reflectance spectroscopy in rice
ZHANG Yu-Sen, YAO Xia, TIAN Yong-Chao, CAO Wei-Xing, ZHU Yan
Chin J Plant Ecol . 2010, (6): 704 -712 .  DOI: 10.3773/j.issn.1005-264x.2010.06.010