The competitive performance of Ipomoea cairica and Schefflera octophylla under different N/P ratios
HU Guimin, WANG Wentian, PENG Shaolin
Ecology and Environment . 2009, (4): 1449 -1454 .  DOI: 10.16258/j.cnki.1674-5906(2009)04-1449-06

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