Root biomass distribution of triploid Populus tomentosa under wide- and narrow-row spacing planting schemes and its responses to soil nutrients
DI Nan,XI Ben-Ye,Jeremiah R. PINTO,WANG Ye,LI Guang-De,JIA Li-Ming
Chin J Plant Ecol . 2013, (10): 961 -971 .  DOI: 10.3724/SP.J.1258.2013.00099

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