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Design of a Soil Cutting Resistance Sensor for Application in Site-Specific Tillage

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Author
Agüera Vega, Juan
Carballido del Rey, Jacob
Gil Ribes, Jesús
Gliever, Chris J.
Pérez Ruiz, Manuel
Publisher
MDPI
Date
2013
Subject
Soil cutting resistance map
Site-specific management
Soil sensor
GNSS
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Abstract
One objective of precision agriculture is to provide accurate information about soil and crop properties to optimize the management of agricultural inputs to meet site-specific needs. This paper describes the development of a sensor equipped with RTK-GPS technology that continuously and efficiently measures soil cutting resistance at various depths while traversing the field. Laboratory and preliminary field tests verified the accuracy of this prototype soil strength sensor. The data obtained using a hand-operated soil cone penetrometer was used to evaluate this field soil compaction depth profile sensor. To date, this sensor has only been tested in one field under one gravimetric water content condition. This field test revealed that the relationships between the soil strength profile sensor (SSPS) cutting force and soil cone index values are assumed to be quadratic for the various depths considered: 0–10, 10–20 and 20–30 cm (r2 = 0.58, 0.45 and 0.54, respectively). Soil resistance contour maps illustrated its practical value. The developed sensor provides accurate, timely and affordable information on soil properties to optimize resources and improve agricultural economy.
URI
http://hdl.handle.net/10396/15289
Fuente
Sensors 13(5), 5945-5957 (2013)
Versión del Editor
http://dx.doi.org/10.3390/s130505945
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