Optimization of root sampling sites and modeling root length density distribution for wheat and maize
WANG Yan-Zhe, SHAO Li-Wei, LIU Xiu-Wei, ZHANG Xiao-Yu, ZHANG Xi-Ying
Chin J Plant Ecol . 2013, (4): 365 -372 .  DOI: 10.3724/SP.J.1258.2013.00036