Abstract:
The water permeability in a long term field experiment was studied depending on main tillage operation. The determination of permeability was estimated 5 times in 3 replications. It was hard to find a deference between two tillage operation: moldboard plow and subsoiler when it was used at the same deep and the same amount of crop residue on surface of the soil. In order to estimate the water permeability of deferent tillage methods we should take in account the quantity of residue left on soil surface.