Monyetla oa Wns e tlase-naetrojene e khutsitseng ea nitrogen.
Lethathamo la Wns Lowing Naitrogen Lower Nittroen
Lower Nitrogen ea Nitrogen e khutsitseng ea khase ke lisebelisoa tse sebetsang hantle le tsa tikoloho, tse sebelisang khase ea tlhaho e le mafura a futhumatsang.
