Afieldexperiment was carried out in the field of experiments collage of Agri. Univ. of Baghdad, Jadriya at spring and autumn seasons 2016 in order to study the response of growth and yield of maize (5018var.) of organic material (Bilirubin) foliar spraying. It was carried out according to the Complete Random Block Design with three replicates, included three concentration (1, 2, 3) mlL-1 in addition control treatment which sprinkled with water only. It was sprayed at stage of 12 leaf. The result of experiment showed: most of the traits of the studied growth and the yield of the maize and its components were affected by spraying with bilirubin, the concentration of 2 ml L gave the highest mean of the yield and its component and the percentage of increase in plant yield at this concentration reached 94.65% and 115.07% compared to the comparison treatment for two season respectively.