Maize is the third important cereal crop in Egypt after wheat and rice. Injection of ammonia gas as a nitrogen fertilizer is used widely comparable with other nitrogen fertilizer forms due to the high nitrogen content (82 %) as well as its cheapest price. Two field trials were carried out at Tameia Agricultural Research Station, Fayoum Governorate, Egypt during 2014 and 2015 summer seasons to study the effect of nitrogen fertilization forms (ammonia gas 82 N% and ammonium nitrate 33.5N%), irrigation intervals and soil conditioners  on yield, yield components and water use efficiency (WUE) water use efficiency of maize. Results showed that a combination of ammonia gas, irrigation at 10 days interval and application of compost caused the  lowest averages of dry soil bulk density and hydraulic conductivity, whereas, this interaction also recorded  the highest value of grain yield in both seasons, as well as, higher values of concentration and  uptake of N, P and K in grain. On the other hand, the treatment of ammonia gas, irrigation at 15 days and application of compost remarkably had the higher water use efficiency (WUE) than the irrigation at 10 days with the application of compost. Although,   the yield production reduced by 5 to 6 % , it saves irrigation water 400m³ha^-1 water. Hence, the treatment of irrigation at 15 days and application of compost is recommended for adoption in wider areas in Egypt to save irrigation water.