Objectives of the field experiment were:
(i) reducing the input of N and P on paddocks during outdoor pig fattening by adjusting pigs diet to the requirements under the premises of minimising the ratio,
(ii) optimising N and P distribution on the paddocks by moving installation units like huts and troughs and providing field fodder on the paddock at weekly intervals, and
(iii) observing surface soil structure under critical conditions in wintertime.