Effect of N fertilizer application on nitrogen absorption and yield of rice

From the viewpoint of high-efficiency fertilizing,this paper studied the effect of N fertilizer application on nitrogen absorption and yield of rice by field plot experiment.Results indicated that nitrogen absorption and yield of rice would increase with nitrogen dosage increasing in certain range.It would be decrease when over-fertilization of N.Addition to times of fertilization under equal amount of N fertilizer(210 kg·hm-2)application that nitrogen absorption and yield would increase.In the event that base fertilizer∶tillers fertilizer∶panicle fertilizer∶grain fertilizer=3∶3∶3∶1,nutrient absorption and yield of rice reached the highest level.