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Iyini Ijeneretha Yenitrojeni Esetshenziselwa?
◆Ijeneretha ye-nitrogen ekhethekile embonini kawoyela negesi ilungele ukuvikelwa kwe-nitrogen, ukuthuthwa, ukumboza, ukushintshwa, ukuhlenga, ukunakekelwa, umjovo we-nitrogen neminye imikhakha ekuhloleni uwoyela negesi ezweni, uwoyela osogwini kanye nolwandle olujulile kanye negesi yemvelo. ukuxhashazwa....Funda kabanzi
