Performance Evaluation of Proximal Sensors for Soil Assessment in Smallholder Farms in Embu County, Kenya

Four proximal soil sensors were tested at four smallholder farms in Embu County, Kenya: a portable X-ray fluorescence sensor (PXRF), a mobile phone application for soil color determination by photography, a dual-depth electromagnetic induction (EMI) sensor, and a LED-based soil optical reflectance s...

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Bibliographic Details
Main Authors: Kristin Piikki, Mats Söderström, Jan Eriksson, Jamleck Muturi John, Patrick Ireri Muthee, Johanna Wetterlind, Eric Lund
Format: Article
Language:English
Published: MDPI AG 2016-11-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/16/11/1950