isivumelwano esilayishwa sentshe
I-mulch yepulasitiki ebolayo imelela intuthuko enkulu kwezobuchwepheshe bezolimo, enikeza ikhambi eliqaphela imvelo emikhubeni yesimanje yokulima. Le nto entsha yakhelwe ngokukhethekile ukuhlinzeka ngezinzuzo ezifanayo ne-mulch yendabuko yepulasitiki ngenkathi ibola ngokwemvelo emhlabathini ngemuva kokuphila kwayo okusebenzayo. Njengoba zenziwe ngama-polymer asuselwa ezitshalweni nezinye izinto ezibolayo, lezi zindawo zokubhaka zilawula ngempumelelo izinga lokushisa kwenhlabathi, zigcine umswakama futhi zivimbele ukhula ukuba lungakhuli phakathi nesikhathi sokukhula. Le nto igcina ukuqina kwayo ngesikhathi sokukhula, ngokuvamile ihlala izinyanga ezingu-3-6 kuye ngezimo zemvelo kanye nokwakheka, ngaphambi kokuqala inqubo yokubola. Ukuwohloka kwezinto eziphilayo kwenzeka ngokusebenzisa izilokazane ezincane zemvelo, eziwohloka zibe i-carbon dioxide, amanzi, ne-biomass ngaphandle kokushiya izinsalela eziyingozi. Lezi zindawo zokubhaka zitholakala ngobukhulu nemibala ehlukahlukene, ngayinye yakhelwe izidingo ezithile zezitshalo nezimo zezulu. Lobu buchwepheshe buhlanganisa iziqinisi ze-UV kanye nezingxube ze-polymer ezilinganiswe ngokucophelela ukuze kuqinisekiswe ukusebenza okuqhubekayo phakathi nesikhathi sokukhula ngenkathi kugcinwa izakhiwo zayo ezibolayo.