作物氮素营养诊断方法的研究现状及进展

根据作物氮素营养诊断方法的发展,总结分析了作物氮素营养诊断中各种方法的优缺点,提出将无损快速诊断技术与传统诊断技术结合将是今后氮素营养诊断的发展趋势。在测土配方施肥中应加强推广植株氮素诊断的方法和技术,提高测土配方施肥的准确性,建立各种不同作物氮素营养诊断的综合指标体系。

Research advancement and status on crop nitrogen nutrition diagnosis

Based on the overview of the crop nitrogen nutrition diagnosis,the merits and shortcomings of different diagnosis methods were summarized.It should be a trend to combine the non-destructive measurement with the traditional crop nitrogen nutrition diagnosis.On the soil testing and fertilizer recommendation,the technology of the extensive crop nitrogen nutrition diagnosis should be strengthened so as to increase the accuracy of the formulated fertilizer.Therefore,a comprehensive index system of different crops nitrogen nutrition diagnosis should be built.