Effect of Efficiency Nitrogen Fertilizer on Corn Growing and Soil Inorganic Nitrogen Concentration

Though field experiment,6 treatments using 3 kinds of fertilizers setted to explore the effects on maize growth in Jingyuan North Beach country of Gansu.The results showed that efficiency nitrogen fertilizer treatment can increase maize growing 4 days than others,increased yield 10.71% and 13.18%,increased income 3 138.74 yuan/hm2 and 3 80.74 yuan/hm2 than conventional fertilization and nitrogen ammonium sulfate treatments.In addition,indoor measurement of the effect of different fertilizer on soil inorganic nitrogen concentration results show that the efficiency of nitrogen fertilizer applied can be applied to extend 20 ~ 30 d,improve the utilization rate of fertilizer by more than 10%.