Abstract:The field experiment was conducted to investigate the effects of common mixed fertilizer(CK) and controlled-release fertilizers with equal nutrient content(CRF) and 20% reduction(CRF80%) on agronomic traits, yield,economic benefits and soil properties of spring maize, so as to provide reference basis for large-scale promotion of controlled-release fertilizer on maize. The results indicated that the application of CRF with equal nutrient content could significantly improve the agronomic traits of maize, such as plant height, ear length, ear diameter, ear row number, grain number per row and 100 grain weight, and significantly increased maize yield by 15.53%. The yield was positively correlated with ear row number, row grain number and hundred grain weight, and negatively correlated with the length of bare tips. Farmers’ income increased by 2 371.43 yuan/ha. And the partial productivity of nitrogen fertilizer and the content of available nitrogen and potassium were significantly increased. Moreover, the application of CRF on corn has remarkable effect and it is worth popularizing and applying vigorously in corn production.