Figure 3

Box plots of potential enzyme activities of rhizosphere soil of rice treated with different doses of N-fertilizer with or without inoculation of Phomopsis liquidambari.

Rice seedling subjected under the following six treatment vs C: Control; LN: Low doses of N-fertilizer; ON: High doses of N-fertilizer; CE: Control + P. liquidambari; LNE: Low doses of N-fertilizer + P. liquidambari; ONE: High doses of N-fertilizer + P. liquidambari. Dehydrogenase = mg TPF (kg air dry soil)⁻¹ h⁻¹; Protease = mg tyrosine (kg air dry soil)⁻¹ h⁻¹; Urease and asparaginase activity as mg NH₄⁺-N g⁻¹ soil h⁻¹; β-glucosidase and phosphatase (acid and alkaline) = mg pNP (kg air dry soil)⁻¹ h⁻¹; Celllulase, amylase and invertase = mg glucose (kg air dry soil)⁻¹ h⁻¹. Note of Box plot: The horizontal line is the mean and upper and lower “hinges” are the first and third quartiles, respectively. Upper and lower “whiskers” extend to the highest or lowest value, respectively.