Open Access Research Paper Views (717) Increased soil enzymatic reactions and soil microbial biomass by application of Lignitic humic acid Lubna Ayub Durrani, Khalid Saifullah Khan, Asma Hassan Int. J. Biosci. 16(1), 279-293, January 2020. DOI: http://dx.doi.org/10.12692/ijb/16.1.279-293 Keywords: Alkaline soils, Enzymatic reactions. CO2-C evolution, Lignitic humic acid, Microbial biomass, Stimulation Details