◆ Onye na-emepụta nitrogen pụrụ iche maka ụlọ ọrụ mmanụ na gas dị mma maka nchebe nitrogen, njem, mkpuchi, ngbanwe, nnapụta, nlekọta, nkwụsịtụ nitrogen na ubi ndị ọzọ na mmanụ na gas na-eme nchọpụta na ala, n'ụsọ oké osimiri na mmiri miri emi na gas gas. nrigbu....
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