Fig. 4From: Agricultural management practices influence the soil enzyme activity and bacterial community structure in tea plantationsSoil enzymatic activities of tea plantations. Acid phosphatase, arylsulfatase, and β-glucosidase activities were determined according to the p-nitrophenol method. The nitrogen-fixing activity was determined by the acetylene reduction method using gas chromatography. Results are shown as mean ± standard deviation. The different letters labeled at columns are significantly different according to Duncan’s test (p < 0.05)Back to article page