To support the agricultural nonpoint source pollution detection and control strategies in Hetao irrigation area of Inner Mongolia，field soil leaching tests were conducted with different kinds of materials to study the dynamic change of soil nitrate and ammonium nitrogen and N uptake by maize.Four treatments were set up，including CK(farmer conventional fertilization with urea)，HK(controlled release urea was used)，C(farmer conventional fertilization with urea，plus activated carbon) and W(farmer conventional fertilization with urea，plus microbial fertilizer).The results showed that compared to CK，soil NO-3N accumulation amount of the treatments HK，C and W increased by 24.76%,18.36%,4.31% in corn seedling period，but reduced by 23.98%,12.53%,5.47% on average in the harvest period.Soil NH+4N accumulation amount increased by 28.21%，15.47%，5.24% in seedling period，but in the harvest period reduced by 26.33%，16.93%，7.37%.Nitrogen utilization rates were 15.71%,10.65%,5.16% higher than the conventional ones.It was concluded that controlled release urea，activated carbon and microbial fertilizer effectively adsorbed NO-3N and NH+4N in shallow soil and reduced nutrient leaching.