ABSTRACT
Acidic soil of Chhattisgarh is not suitable for the proper growth of plant species. Amended soil by fly ash Prashank K. Sarangi et al have reported that amylase and invertase in soil (mg glucose. g-1 soil h-1) and soil protease activity (μg tyrosine g-1.h-1), soil respiration (gm CO2M-2h-1) and chlorophyll content mg. g-1 fresh tissue have raised. L.K.Thetwar et al have worked on the effect of fly ash and plant hormones on soil metabolic activities.
Key words: Chlorophyll Content, Antioxidant and Phenolic Contents, Coleus forskohlii and Andrographis Paniculata.