When soils are cultivated in arable farming, soil compaction through management and harvesting is unavoidable. Driving on soils with high loads is particularly critical, especially with high soil moisture. The increasing "just-in-time work" in harvesting and other activities in agriculture therefore promotes conflicts of interest. Increased knowledge of the interrelationships and influences between soil management and soil fertility, improved techniques for reducing soil pressure and knowledge of current soil moisture can contribute to the solution. By means of a simple quick test, water infiltration in the soil as a characteristic of soil compaction, can be demonstratively tested in the field. The quick test is also easy to understand and impressive for non-scientists. It can thus be used for training and sensitisation of employees.