主动作物冠层传感器GreenSeeker在马铃薯氮素营养诊断中应用的可行性分析

长期以来氮肥的施用在马铃薯生产中起到了重要作用。但是，随着氮肥施用量的增加，氮肥利用效率势必会降低并造成一定的环境问题。因此，根据马铃薯的需肥规律进行氮肥的施用，提高氮肥利用率已成为业界共识。然而，传统的氮肥推荐方法如土壤测试的方法费时费力、实时性差。随着遥感测试技术的发展，一些传感器应运而生，使基于光谱的植株氮营养快速检测成为可能。本文介绍了主动作物冠层传感器GreenSeeker对作物营养诊断的原理及其在玉米、小麦等作物上应用的国内外研究进展，并讨论其在马铃薯氮素营养诊断和精确施肥的重要性、可行性及应用前景。

Possible Application of GreenSeeker in Diagnosing Potato Nitrogen Nutrition Status

Nitrogen fertilizer has been playing an important role in potato production for a long time.In China,the nitrogen use efficiency(NUE)decreased due to the increment of N application,which caused environmental problems.It was well known that NUE increased when synchronizing N supply from fertilizer and N demand of potatoes(Solanum tuberosum L.).However,the traditional soil-plant measurement based on N recommendation method is costly,labor intensive and time consuming.With the development of remote sensing technology,it provides an opportunity for timely estimating potato N status.This paper introduced the general principle of crop nitrogen nutrition diagnosis based on GreenSeeker and summarized the research progress both internal and external on the nitrogen management for wheat and maize,also discussed the importance,feasibility of using GreenSeeker to diagnose potato N status and its application prospective.