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Field Comparison of Soil Moisture Sensing Using Neutron Thermalization, Frequency Domain, Tensiometer, and Granular Matrix Sensor Devices: Relevance to Precision Irrigation
Malheur Experiment Station, Oregon State University, Ontario, USA
Department of Soil Science and Agricultural Engineering, State University of Ponta Grossa, Ponta Grossa, Brazil
Oregon State University, Malheur Experiment Station, Ontario, USA
Oregon State University, Malheur Experiment Station, Ontario, USA
Ankara Nuclear Agriculture and Animal Research Center, Ankara, Turkey
General Directorate of Agricultural Researches, Potato Research Institute, Ministry of Agriculture and Rural Affairs, Nigde, Turkey
- 1 Malheur Experiment Station, Oregon State University, Ontario, USA
- 2 Department of Soil Science and Agricultural Engineering, State University of Ponta Grossa, Ponta Grossa, Brazil
- 3 Oregon State University, Malheur Experiment Station, Ontario, USA
- 4 Oregon State University, Malheur Experiment Station, Ontario, USA
- 5 Ankara Nuclear Agriculture and Animal Research Center, Ankara, Turkey
- 6 General Directorate of Agricultural Researches, Potato Research Institute, Ministry of Agriculture and Rural Affairs, Nigde, Turkey
Journal of Water Resource and Protection·Volume 08 (2016)·Pages 154–167·Published 4 February 2016·DOI10.4236/jwarp.2016.82013
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Abstract
The efficient use of irrigation water requires several kinds of information. One element of efficient irrigation scheduling is monitoring the soil moisture to assure that the crop irrigation goals are being met. Various soil moisture sensing devices were tested for irrigation scheduling in silt loam at the Malheur Agricultural Experiment Station, Oregon State University between 2001 and 2004. Neutron probes, frequency domain probes, tensiometers, granular matrix sensors, and Irrigas were compared as to their performance under field conditions at Ontario, Oregon, USA. Granular matrix sensors were tested as read automatically by a datalogger and read manually with a hand-held meter. Practical suggestions are provided to use soil moisture sensors to the benefit of crop production and water conservation.
KeywordsSoil WaterIrrigation SchedulingResponsivenessSoil Moisture SensorPorous Ceramic
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