Research Progress of Nitrogen Nutrition Diagnosis and Application Strategy in Rice
Nitrogen is one of the indispensable elements for rice growth.Nitrogen diagnosis of rice can timely adjust the corresponding fertilization measures according to the diagnosis results and cultivation objectives,achieve precise fertilization,maximize fertilizer utilization,and reduce environmental pollution.The development history of nitrogen diagnosis in rice,the advantages and disadvantages of diagnostic methods,and the development trend of nitrogen diagnosis in the future were reviewed.The effects of panicle fertilizer on rice yield,yield components and grain quality were analyzed,so as to give full play to the effects of nitrogen fertilizer and provide references for nitrogen diagnosis and panicle fertilizer topdressing.
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