Also, Andreá
et al. (2003) showed that dehydrogenase activity was higher than the control after one month after GP application.
In this case, it can be suggested that glyphosate can increase dehydrogenase activity or soil oxidative processes. Conversely, some researches reported the reduction of dehydrogenase activity in comparison to the control sample (Zabaloy et al., 2008;
Sebiomo et al., 2011).
Accinielli et al. (2002) also found that GP at doses ranging from 20 to 200 mg kg-1 exerted effect on microbial activity as measured by respiration and dehydrogenase activity.