Operational Technique of Nitrogen Fertilizer on Yanjing 188,a New Rice Variety

Using plot comparison experiment,the effect of nitrogen operation on the yield of Yanjing 188,a new rice variety,was discussed.The results showed that the effective panicles and flowers per area,the percentage of dry matter accumulated from heading to maturing to total grain weight,kernel set and nitrogen utilization efficiency obtained in treatment B,the basal fertilizer: tiller fertilizer: panicle fertilizer being 2:5:3(2:5:3),were more than those of control.The treatment B got the yield of 720.45 kg/667 m2,higher than treatment C(3:4:3),treatment D(3:5:2) and treatment A(2:4:4) by 1.11%,2.93%,and 7.83%,respectively.