Tsev cog khoom

Peb lub tuam txhab tsuas yog tsim thiab xa tawm hemp ntau lawm, zaub thiab txiv hmab txiv ntoo cultivation, horticulture, qhia thwmsim thiab coj mus muag economic greenhouses, uas yog muag rau cov tib neeg, ua liaj ua teb, cov tswv lag luam, tsoom fwv thiab lwm pab pawg neeg nyob ib ncig ntawm lub ntiaj teb no.