Abstract: Based on 5-year field plot experiments in Shuangcheng city,the effect of different fertilizers on corn yield and fertilizer efficiency was studied in order to understand limiting factors of soil nutrients,to produce the maximum yield,and to achieve high yield and high efficiency of corn in Heilongjiang Province. The results showed that corn production decreased without nitrogen,phosphorus,potash,zinc and sulfur fertilizers. Compared with OPT treatment,corn yield with O-N,O-P,O-K,O-Zn,and O-S treatment decreased by an average of 27.7%,18.4%,17.6%,7.8% and 9.7%,respectively; Corn yield,nutrient absorption amount,agronomic efficiency and fertilizer utilization rate were improved by rational fertilization with N,P and K fertilizers. Compared with farmer's routine fertilization practice (FP),optimal fertilization increased corn yield by 12.6%; improved nutrient absorption amount of N,P₂O₅ and K₂O by 13.4 kg·hm^-2,9.0 kg·hm^-2 and 12.4 kg·hm^-2,respectively; agronomic efficiency increased by 6.5 kg·kg^-1,17.5 kg·kg^-1,and 7.0 kg·kg^-1,respectively; and fertilizer utilization rate improved by 8.1%,13.4% and 9.5%,respectively. In Shuangcheng city,nitrogen was a main limiting factor of soil nutrients,followed by potassium and phosphorus,while the potential limiting factors were zinc and sulfur.Therefore,for farmer's fertilization practice in Shuangcheng city,nitrogen fertilizer was slightly insufficient,phosphorus fertilizer was over sufficient,and potash fertilizer was deficient. More attention should be paid to increase potash fertilizer use;otherwise,it would easily lead to soil potassium deficiency for continuous corn planting.