作物冠层氮素的高光谱无损监测技术研究

Non-destructive Monitoring of Crop Canopy Nitrogen Based on Hyperspectrum

氮素是作物生长发育和品质形成的重要指标。实时、快速、准确、无损地监测作物冠层氮素含量对于作物生长诊断、提高氮素利用率、减少过量施氮带来的环境污染具有重要的意义。从冠层氮素的高光谱无损监测的国内外研究现状出发,围绕作物冠层氮素无损监测的技术原理、作物冠层无损监测现状及存在的问题、作物冠层氮素无损监测技术的发展方向等问题进行阐述和探讨,以期为冠层氮素高光谱无损监测研究提供一定的参考。

Nitrogen is an important indicator for crop growth and quality formation. Real-time, rapid, accurate, non-destructive monitoring of crop canopy nitrogen content is of significance in crop growth diagnosis, improving nitrogen use efficiency and reducing environment problems caused by excess nitrogen. Starting from the domestic and foreign research situation about non-destructive monitoring of the crop canopy nitrogen based on hyperspectrum, the principle, status, existing problems, development direction of crop canopy nitrogen non-destructive monitoring tech- nology were elaborated and discussed, in order to provide a certain reference for non-destructive monitoring of the crop nitrogen based on hyper- spectrum.