The practice is introduced in all experimental stations, where maize and sugar beet are cultivated. In Błonie-Topola EF, maize is seeded directly in mulch. Maize and sugar beet are sown in late spring in wide rows, therefore their cultivation involves a threat of soil degradation, such as leaching of minerals, wind and water erosion, mineralization and loss of organic matter. Sowing in mulch reduces the risk of the aforementioned environmental threats.