The effects of applications of zeolite, nitrogen and zeolite + nitrogen on yield, quality and some morphological traits of silage corn was researched at the Research Station of the Agriculture Faculty, University of Ataturk, Eastern Turkey, during 2012 and 2013. Treatments included a control, three zeolite (Z1: 500, Z2: 1000, Z3: 1500 kg ha-1 ), three nitrogen (N1: 50, N2: 100, N3: 150 kg ha-1 ) and nine combinations of zeolite + nitrogen