Abstract: Based on the establishment of demands for a mulching system in plant production, the function of a soil cover for affecting soil physical properties was analyzed. And 5 construction principles for soil cover with agricultural waste materials, inorganic materials, transparent and nontransparent plastic film and low plant for living mulch were suggested. Through technological evaluation of solution variants according to 10 established evaluating criteria system, the reasonable solution variant with a higher grade of approach towards a imagined ideal solution variant was found out. A fundamental condition for mulching system was composed. Finally the effects of selected mulch material on soil physical properties were examined through a field experiment.