For hydrocarbons to be oxidized by microorganisms, oxygen should be plentiful.
Hoeing the polluted soils increases the availability of oxygen, reduces hydrocarbon
concentration in the earth, and breaks open the clods of earth soaked with oil.
At the same time, it helps to evenly distribute the oil components in the soil and
increase active biological surface activity. Thus an optimum water, air, gas and
thermal balance is created, the number of microorganisms grows, their activity
as well as activity of the soil* own enzymes increases and the energy of biochemical
processes increases too.