hadi abbasi - M.Sc. in Agricultural Irrigation and Drainage Engineering, Islamic Azad University
Hossein Babazadeh - Assistant professor of irrigation and drainage faculty, azad islamic university
Abbas Khashei Siuki - Irrigation and drainage PhD student, Agriculture faculty of Tarbiyat Modares university
Mojtaba Ahmadizade - M.Sc. water source management engineering, Tehran university

For consideration of influence of different quantities of natural zeolite and efficiency of irrigation on variation of protein of corn grain (single grass704), was conducted. A factorial field experiment in randomize complete block 12 treatments which main factor contain of Zeolite treatments (Z0= 0, Z1= 2, Z2=4 and Z3= 8 gram Zeolite in one Kilogram of soil) and secondary factor contain of irrigation efficiency percent treatments (M1= 90%, M2= 70% and M3=30%) with 3 replication was conducted in the agricultural research farm of Tarbiat Modares University. results showed that In each level of zeolite with change of the rate of irrigation efficiency (M1, M2, M3) especially for the two level of (M2,M3) that has more leaching than the M1, the difference of the percentage of protein in treatments without zeolite is more than the treatment with zeolite The maximum degree of protein relates to Z3M1 treatment and the minimum degree of it is in the Z0M3.

Zeolite, Maize, percentage of protein, irrigation efficiency