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Soil Microbial Responses to Potassium-Based Black Liquor from Straw Pulping

^a Dep. of Crop and Soil Sciences, Washington State Univ., Pullman, WA 99164-6420
^b College of Forest Resources, Univ. of Washington, Seattle, WA 98195-6613

View larger version (33K): [in a new window]   Fig. 1. (a) Cumulative evolved CO2, and (b) apparent percentage of black liquor derived C evolved as influenced by black liquor application rates. I: LSD0.05 bars: significant differences among treatments at each sampling date at p 0.05; and NS: no significant differences among treatment at each sampling date.

View larger version (30K): [in a new window]   Fig. 2. (a) Dehydrogenase, (b) ß-glucosidase, and (c) arylsulfatase activities as influenced by black liquor application rates. I: LSD0.05 bars: significant differences among treatments at each sampling date at p 0.05; and NS: no significant differences among treatments at each sampling date.