Leaf Age Diagnosis Method and the Conventional Methods of Fertilization under Different Fertilization Yield Analysis

Through this experiment, leaf age diagnosis method and the conventional fertilization methods under different fertilization conditions yield analysis, results showed that: the leaf age diagnosis method applying nitrogen fertilizer pro-duction than conventional method 3.9%, can be more scientific and reasonable according to the fertilizer demand of rice leaf age and fertilization, effectively improve the utilization rate of nitrogen fertilizer, reducing environmental pollution.Application of N 69.0 kg/hm2, P2O546 kg/hm2, K2 O 23.5 kg/hm2, leaf age diagnosis method yield up to 8 452.9 kg/hm2.