Effect of Different Fertilization System on Fertilizer Utilization Efficiency

Based on a consecutive 17 years field trial, this paper was to explore the effects of different fertilization systems on the fertilizer utilization efficiency, in order to give guidance for application of fertilizers. The result indicated that there were differences in annual fertilizer utilization efficiency with different fertilization. Annual N、P and K fertilizer utilization efficiency were higher with manure than those without manure. There was a significant increase on accumulated P fertilizer utilization efficiency in each treatment, and there was a significant increasein accumulated N fertilizer utilization efficiency in each treatment, expect for treatment of N fertilizer application. There was a significant increase on accumulated K fertilizer utilization efficiency with manure application, and no difference in other treatments.