Figure 1
From: Long-Term Coffee Monoculture Alters Soil Chemical Properties and Microbial Communities

Plant dry weight of coffee seedlings in pot experiments. Vertical bars represent the mean ± standard deviation of three replicates. Bars with different letters indicate significant differences (P < 0.05) based on Duncan’s test. “4Y”, “18Y”, “26Y”, and “57Y” stand for 4 coffee fields with 4, 18, 26 and 57 years of continuous cropping history, respectively.