On perpendicular to the row transects in eight Trentino vineyards, we measured electrical resistance in the soil in three 70 cm wide strips and at three depths (0-20 cm, 20-40 cm, 40-60 cm). A custom-made instrument, based on an Arduino single-board microcontroller, transmitted resistance measurements every 15 minutes to the Meteo Centre of San Michele. By using a Richard's pressure plate at 10 kPa (field capacity) and at 1400 kPa (wilting point) we estimated the water available at the three depths. With fixed 50 cm TDR probes inserted vertically near the transects, we measured soil moisture at field capacity and at wilting point. We then perfected an algorithm that, when receiving values of electrical resistance from each layer, gives an output corresponding to soil moisture

Toller, G.; Andreis, D.; Biasi, A.; Biasi, A.; Corradini, S.; Caset, D.; Faustini, A.; Paternolli, U.; Piffer, I.; Sartori, G.; Zottele, F. (2014). Estimating soil moisture by electrical resistance measurements. In: F. Ventura, L. Pieri (a cura di) Atti del XVII Convegno nazionale di agrometeorologia: ruolo dell’agrometeorologia nelle nuove politiche agricole, Roma, 10-12 giugno 2014. Quarto inferiore (BO): Patron: 93-94. ISBN: 978-88-555-3271-6. handle: http://hdl.handle.net/10449/24070

Estimating soil moisture by electrical resistance measurements

Toller, Gianbattista;Andreis, Daniele;Biasi, Aldo;Biasi, Alessandro;Corradini, Stefano;Piffer, Ivan;Zottele, Fabio
2014-01-01

Abstract

On perpendicular to the row transects in eight Trentino vineyards, we measured electrical resistance in the soil in three 70 cm wide strips and at three depths (0-20 cm, 20-40 cm, 40-60 cm). A custom-made instrument, based on an Arduino single-board microcontroller, transmitted resistance measurements every 15 minutes to the Meteo Centre of San Michele. By using a Richard's pressure plate at 10 kPa (field capacity) and at 1400 kPa (wilting point) we estimated the water available at the three depths. With fixed 50 cm TDR probes inserted vertically near the transects, we measured soil moisture at field capacity and at wilting point. We then perfected an algorithm that, when receiving values of electrical resistance from each layer, gives an output corresponding to soil moisture
Soil
Resistance
Moisture
TDR
Suolo
Resistenza
Umidità
TDR
978-88-555-3271-6
2014
Toller, G.; Andreis, D.; Biasi, A.; Biasi, A.; Corradini, S.; Caset, D.; Faustini, A.; Paternolli, U.; Piffer, I.; Sartori, G.; Zottele, F. (2014). Estimating soil moisture by electrical resistance measurements. In: F. Ventura, L. Pieri (a cura di) Atti del XVII Convegno nazionale di agrometeorologia: ruolo dell’agrometeorologia nelle nuove politiche agricole, Roma, 10-12 giugno 2014. Quarto inferiore (BO): Patron: 93-94. ISBN: 978-88-555-3271-6. handle: http://hdl.handle.net/10449/24070
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