Study on the Spatial Distribution of Leaf N Content and SPAD Value in Cotton
LUO Xin-Ning, CHEN Bing, ZHANG Ju-Song, JIANG Ping-An, LOU Shan-Wei, PENG Xiao-Feng, HE Jia-Lin
Cotton Science . 2009, (5): 427 -430 .  DOI: 10.11963/cs090517