Root growth and distribution in rice cultivars as affected by nitrogen and water supply
GU Dong-Xiang, TANG Liang, XU Qi-Jun, LEI Xiao-Jun, CAO Wei-Xing, ZHU Yan
Chin J Plant Ecol . 2011, (5): 558 -566 .  DOI: 10.3724/SP.J.1258.2011.00558