Multimodal Probe Based on ISFET Electrochemical Microsensors for In-Situ Monitoring of Soil Nutrients in Agriculture

Autor: Matthieu Joly, Laurent Mazenq, Maurane Marlet, Pierre Temple-Boyer, Céline Durieu, Jérôme Launay
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Proceedings, Vol 1, Iss 4, p 420 (2017)
Druh dokumentu: article
ISSN: 2504-3900
DOI: 10.3390/proceedings1040420
Popis: We report the design of a silicon chip dedicated to the in-situ monitoring of soil nitrogen cycle in wheat crop. Our study shows that ion-sensitive field effect transistor (ISFET) microsensors are suitable for quick on-site or long-term analysis of nutrients measured directly in soil as opposed to soil extracts analysis. Our pH-ISFET recorded soil pH for six months with results in good accordance with standard sampling method and without any loss of sensitivity. The adaptation of pH-ISFET in pNO3 and pNH4-ISFET allowed, for the first time, the in-situ measurements of natural variations of soil nitrogen contents caused by microorganisms’ activity
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