Nitrogen Stress Sensing System using Machine Vision for Precision Farming (Part 1)

Measurement System Overview and Fundamental Experiments

Abstract

Precision farming technology with controlling nitrogen treatment is available for management and environmental considerations. The objective of this study is to develop a method for obtaining nitrogen stress using machine vision. Digital green meter and leaf color scale have been already commercialized as measurement devices for nitrogen stress of crops. In this paper, measurement principle of nitrogen stress is proposed based on leaf reflectance. It was concluded that the wavelength of 550, 650nm is proper for detecting nitrogen stress.