Application of a low‐cost NDIR sensor module for continuous measurements of in situ soil CO2 concentration. Issue 5 (21st June 2020)

• Record Type: Journal Article
• Authors: Heger, Adrian; Kleinschmidt, Volker; Gröngröft, Alexander; Kutzbach, Lars; Eschenbach, Annette
• Is Part Of: Journal of plant nutrition and soil science. Volume 183:Issue 5(2020:Oct.)
• Page Start: 557
• Page End: 561
• Publication Date: 2020-06-21
• Subjects: H2O vapor cross‐sensitivity -- non‐dispersive infrared spectroscopy -- sensor comparison -- soil CO2 measurements -- soil CO2 probe -- temperature drift; Plants -- Nutrition -- Periodicals; Soil science -- Periodicals; 630
• DOI: 10.1002/jpln.201900493
• Languages: English
• ISSNs: 1436-8730

Abstract

Abstract: We tested the performance of a newly developed CO2 probe, K33SOIL [based on the sensor module K33 (Senseair, Sweden)], under harsh temperature and humidity conditions in a laboratory experiment. The K33SOIL, competed well (RMSE = 0.032% CO2 ) with the often used GMP343 (Vaisala, Finland) in precision and accuracy. A field experiment showed that the K33SOIL is also suitable for in situ applications. Thus, the K33SOIL is a valuable and cost‐efficient tool for measurement of soil CO2 concentration.