Soil microbial activity
Dehydrogenase activity as measure as g TPF g-1 soil 24 h-1 hydrolyzed per gram of soil, increased significantly with time and GP addition in compare with control samples and it is highest amount (0.4 g TPF g-1 soil 24 h-1) was related to Soil 1 with 25 mM GP after one week incubation (Figure 5).
Respiration rate measured as μg CO2 g-1 soil, increased significantly (p