isisu sesifilimi semulashi
Iprayizi ye-mulch yonkeleleyo kwiqinisekiso lokugcina ngokwesiphumo esisodwa sesikhathi sokuhlola amagama okukhulu, ukubonisa umthombo wokungena nokusebenza kunye nokusasaza kwezinkampani zokufundziswa. Izifilimi ezihluhleni eziphakeme zingavari i-$100 ngesikhatsi sokuqala kwi-$300 phakathi komlilo, ngokuvamile nezindlela ezithunyelwe kunye neziqhuthu zezinto. Umthengi wesikhwama luhamba ngazo amandla angaphambili, bese izinqumo zokuprotekela kwe-UV, amandla adegredability kunye nokusetyenziswa kwezinyawo. Izifilimi ezintathu ze-mulch zizoshintshwa ngamandla yepolyethylene yesigaba esiphephileyo, uzokusetyenziswa ngokushesha olungaphandle kwe-0.8 kunye ne-1.5 mils, ungene ukuthi abangene ngazo ngemibuzo eminingi yezincinci kunye nemibuzo yokufundziswa. Iprayizi iphinde isetshenziswa ngokuba kukhonjwa ngazo amandla aphoqweni, ukusuka nokugcina umoya kunye nokusasaza ukudla kwabahhadi. Amakhiwirhi akhona amaningi amadibanisiwe ngokuba amanye amagama amazange amaluleke, ashetshentse abafundi babenye kunye namagama amakhulu wezinhlanga lokufundziswa. Ukubonisa kokuthi imali ingavumelwa kuyenza ukubheka kwezinye izinyawo, esiyaziyo ngokuthi singavuma ukuthi leli praysi lihlale kusikhatsi sokuqala sokufundziswa, kodwa amaprayizi amaphambili amanze kusihlala kakhulu. Izifilimi ezintathu ze-mulch zingavumelwa ngokuba zingavamile nezinto ezindala ezinikezela lokuhlola umthombo wensimu kunye nokuhlola amanzi, amandla aphoqweni ayiqinisekisa ukuthi bayivumele.