Abstract: Controlled release fertilizer had the advantages of reducing nitrogen nutrient volatilization and improving utilization rate of fertilizer.Controlled release fertilizer experiment results in Ningxia south mountainous showed that an average yield of corn was 11 096.1 kg/hm^2 with the application of controlled release fertilizer, which was 9.0% higher than that of the custom fertilizer application;the yield of basal application 90 kg/hm^2 controlled release fertilizer with 90 days was high and the benefit was good, which was 14.3% higher than yield of the custom fertilizer application and increased 2 145.66 yuan/hm2.