Fig. 3From: Nitrogen fixation rate of Acacia mangium Wild at mid rotation in Brazil is higher in mixed plantations with Eucalyptus grandis Hill ex Maiden than in monoculturesMean DBH growth rate of Acacia mangium trees in monospecific stand (100A) and mixed stand (50E:50A) measured monthly with band dendrometers. Vertical bars indicate standard deviations between trees (n = 15 in 100A; n = 10 in 50E:50A). The sampling dates of acacia leaves are indicated by arrows and vertical dotted line. For a given date, different letters indicate differences between treatments (p < 0.05)Back to article page