Indwangu yomthunzi yenziwa nge-polyethylene ebuthiwe.Iguquguquka kakhulu kunendwangu yomthunzi elukiwe.Ingasetshenziswa futhi njengenetha lesikafula, ikhava ye-greenhouse, i-windbreak mesh, inetha lenyamazane nezinyoni, amanetha esichotho, amavulandi kanye nomthunzi wevulandi.Iwaranti yangaphandle ingaba yiminyaka eyi-7 kuye kweyi-10.