As a result of natural or artificial stress, air is ousted from soil, its volume decreases, so soil resistance grows, water permittivity capacity weakens (limited water transmission, no capillarity). Soil pan bounds water movement in the soil, so the upper layer gets impregnated with water, as a consequence, rootage does not get oxygen. Lack of oxygen has a negative effect on admission of nitrogen and manganese, because these depend on the amount of oxygen present. As a consequence, soil pan limits developing plants to access nitrogen and manganese.

Furthermore, with the lack of air, we provide living-space for anaerobic harmful organisms that find airless medium the most ideal. They accrue and the risk of soil-related illnesses grows considerably. In such a medium, stalk and rootage remains do not decompose, they just rot after harvest. Big amounts of plant remains peg down the soil and ensure that harmful organisms survive through winter. Presence of illnesses increases, moreover, we simply raise pest control costs of the next culture.