Among the factors of production, irrigation and nitrogen fertilization are essential for increasing productivity and quality of green corn. The objective was to identify the ideal amount of water and nitrogen dose for the development of green corn. For this, an experiment was carried out at the Federal University of Alagoas, Campus Arapiraca, using a randomized block design in a split plot scheme, with five irrigation depths and five nitrogen doses. In the plots the irrigation depths were determined based on the evapotranspiration of the crop (0, 50, 100, 150 and 200% of the crop evapotranspiration, ETc). And, in the subplots, the nitrogen doses (0, 50, 100, 150 and 200% of the recommendation for the cultivation of corn). The morphological variables were analyzed: plant height and stem diameter and physiological variables: chlorophyll and chlorophyll content a and b. The corn culture did not respond to the nitrogen doses applied for any variable analyzed. For the morphological variables, the highest plant height (2.46 m) was obtained by applying 160% of the irrigation depth; the largest stem diameter (26 mm) was obtained in the 200% ETC blade. For the physiological variables, the highest chlorophyll content was obtained in the smallest slide tested; while for chlorophyll a and b, the increase of one unit in the percentage of ETc, increased by 1.3 and 0.3 mg m-2, respectively for these variables. The culture of green corn is sensitive to water deficit, responding satisfactorily to strata above 100% of the ETc.