Effect of Subsurface Drip Irrigation System and Two Levels Nitrogen Fertilizer on Corn Growth and Yield

Abstract

Abstract The scarcity of irrigation water in Iraq and the great waste of water and saline lands and the dominance of old and unscientific methods of water management when cultivating corn, was the aim of this study is to reduce the amount of fertilizer added to the soil during the growing season for hectare area and the abundance of water large amounts, as well investigate, the effect of irrigation systems, subsurface drip irrigation system(SDIS) and, the levels nitrogen fertilizer (NF) on corn cultivars (Gadiz, IPA5012 and R-106). Completely randomly assigned to three replicates, the Gadiz cultivar outperformed the IPA5012 and R-106 cultivars in a factorial experiment. While the level nitrogen fertilizer (175 kg N.ha-1), was significantly superior to the level nitrogen fertilizer (150 kg N.ha-1), in all parameters. All interactions were significant, the best results in this study were obtained from the interaction among the level nitrogen fertilizer (175 kg N.ha-1) and corn cultivar Gadiz.