Fig. 1From: Design of a bio-conditioner prototype for the treatment of degraded soils: biomass production and lignite formulation for Microbacterium sp. CSB3Optimization of biomass production as a function of agitation and pH. a Pareto diagram for the analysis of the statistical significance of factors; factors: a pH and B: agitation. b Response surface of CSB3 biomass production, X axis: pH ranges in codes units; Y axis: bacterial biomass (g L−1); Z axis: agitation in codes unitsBack to article page