Optical sensors in agriculture: Principles and concepts

Authors

  • Holger Lilienthal Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für Pflanzenbau und Bodenkunde, Braunschweig

Keywords:

Precision agriculture, remote sensing, optical sensors

Abstract

Online sensors for the detection of spatially varying crop stands have gained importance in agricultural practices, mainly for site specific fertilisation.

Commonly, values of 2–3 spectral channels are used to calculate vegetation indices. These are then correlated with crop parameters such as biomass. Meanwhile, high quality continuous reflectance spectra can be measured online allowing improving prediction models and opening up new challenges for data analysis.

The physical principles, used vegetation indices, as well as the potentials and risks of agriculturally used optical sensors are presented and discussed.

DOI: 10.5073/JfK.2014.02.01, https://doi.org/10.5073/JfK.2014.02.01

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Published

2014-02-01

Issue

Vol. 66 No. 2 (2014): Special issue sensor technology

Section

Short Communication

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The copyright of the published work remains with the authors. The authors grant the Journal of Cultivated Plants, the Julius Kühn-Institut and the OpenAgrar repository the non-exclusive right to distribute and exploit the work.