Construction and calibration of Time Domain Reflectometry probes for assessing soil humidity in distropheric red latosol
DOI:
https://doi.org/10.31686/ijier.vol8.iss12.2812

Keywords:
Irrigation management, capacitive sensors, water use efficiency, time domain reflectometry, moisture profilesAbstract
Among the indirect methods of assessing soil moisture, Time Domain Reflectometry (TDR) stands out, which uses the soil dielectric constant to provide volumetric moisture efficiently, quickly and non-destructively. Despite a practical and precise method, TDR has a high cost due to the probes and its Data Logger. In view of this, the present work aims to build and calibrate TDR probes to assess moisture in a Dystrophic Red Latosol. The present work was carried out in the experimental area of the hydraulics laboratory of the Federal University of Grande Dourados (UFGD), located in Dourados-MS, at latitude 22⁰ 12 'south, longitude 54⁰ 59' west and altitude of 434 meters. Each probe built consisted of 3 stainless steel rods (Ø = 3 mm; L = 230 mm) RG 98 cable with 90% mesh and 50 ohm impedance, 4.7 pF ceramic capacitor and BNC connector. The construction procedures followed the following steps: 1- Making the cable, 2- Preparing the rods, 3- Welding the rods to the wires, 4 -Operating test and 5 - finishing phase. After construction, they were calibrated with the characteristic soil of the Region, proceeding with the Probe Reading in two depths (10 and 30 cm) and simultaneous collection of deformed soil samples to determine the moisture based on mass in Laboratory. Subsequently, calibrations with cubic polynomial adjustment were performed. The results showed adjustments with high determination coefficients, and the probes developed showed satisfactory performances.
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Amaral, C. O., Araújo, M. S. P., Sousa, E. F., Oliveira, F. G., Marciano, C. R. (2019). Calibração de equipamento de TDR em condições de laboratório e campo para dois tipos de tubos de acesso. Revista Engenharia na Agricultura 27 (6): 574-582. DOI: https://doi.org/10.13083/reveng.v27i6.8091
Batista, A. H., Melo, V. F., Gilkes, R. (2016). Microwave acid extraction to analyze K and Mg reserves in the clay fraction of soils. Revista Brasileira de Ciência do Solo 40: 1-10. DOI: https://doi.org/10.1590/18069657rbcs20160067
Buske, T. C., Robaina, A. D., Peiter, M. X., Rosso, R. B., Torres, R. R., Nunes, M. S. (2013) Avaliação do desempenho do método das pesagens para a determinação da umidade do solo. Revista Brasileira de Agricultura Irrigada 7 (6): 340-348. DOI: https://doi.org/10.7127/rbai.v7n600186
Coelho, E., Da Silva, A. J. P., Vellame, L. D. M. (2016). Sondas de TDR artesanais de três hastes para estimativa da umidade do solo. Cruz das Almas: Embrapa Mandioca e Fruticultura. (Embrapa Mandioca e Fruticultura. Circular Técnica 119: 6p.
Dos Santos, H. G., Jacomine, P. K. T., Dos Anjos, L. H. C., De Oliveira, V. A., Lumbreras, J. F., Coelho, M. R., Cunha, T. J. F. (2018). Sistema brasileiro de classificação de solos. Brasília, DF: Embrapa 5: 355p.
Du, T., Kang, S., Zhang, J., Davies; W. J. (2015). Deficit irrigation and sustainable water-resource strategies in agriculture for China’s food security. Journal of experimental botany 66 (8): 2253-2269. DOI: https://doi.org/10.1093/jxb/erv034
El-Naggar, A.G., Hedley, C.B., Horne, D., Roudier, P., Clothier, B.E. (2020). Soil sensing technology improves application of irrigation water, Agricultural Water Management 228: 105901. DOI: https://doi.org/10.1016/j.agwat.2019.105901
Gheysari, M., Sadeghi, S. H., Loescher, H. W., Amiri, S., Zareian, M. J., Majidi, M. M., Payero, J. O. (2017). Comparison of deficit irrigation management strategies on root, plant growth and biomass productivity of silage maize. Agricultural Water Management 182: 126-138. DOI: https://doi.org/10.1016/j.agwat.2016.12.014
Gomes, E. P., Gomes, L. D., Vieira Filho, P. S., Santos, R. C., Sanches, A. C., Barea, R., Rezende, M. T., Sousa, J. L. R., Favarim, A. P. C., Santana, C. S., Krenczynski, T. V. (2020). Hydraulic Characterization of Domestic Taps. International Journal of Development Research 10: 34150-34153.
Gomes Filho, R. R., Santos, M. R. A., Carvalho, C. M., Faccioli, G. G., Nunes, T. P., Santos, R. C., Valnir Junior, M., Lima, S. C. R. V., Mendonca, M. C. S., Geisenhoff, L. O. (2020). Microbiological quality of lettuce irrigated with treated wastewater. International Journal of Development Research 10: 34989-34992.
Miyata, S., Mizugaki, S., Naito, S., Fujita, M. (2020). Application of time domain reflectometry to high suspended sediment concentration measurements: Laboratory validation and preliminary field observations in a steep mountain stream, Journal of Hydrology 585: 124747. DOI: https://doi.org/10.1016/j.jhydrol.2020.124747
Sanches, A. C., de Souza, D. P., de Jesus, F. L. F., Maffei, R. G., Mendonça, F. C., Pezzopane, J. R. M. (2020). Calibração de Sonda Capacitiva em Nitossolo Vermelho Latossólico Eutroférrico Cultivado com Forrageiras Irrigadas. Irriga 25 (1): 38-45. DOI: https://doi.org/10.15809/irriga.2020v25n1p38-45
Souza, C. F., Pires, R. C. M., De Miranda, D. B., Varallo, A. C. T. (2013). Calibração de sonda FDR e TDR para a estimativa da umidade em dois tipos de solo. Irriga 18 (4): 597-606. DOI: https://doi.org/10.15809/irriga.2013v18n4p597
Souza, C. F., Cirilo, L. D. S., Bastos, R. G., Peres, J. G., Oliveira, A. F. (2016). Sonda de TDR para a estimativa de umidade em bagaço de Cana-de-açúcar. Engenharia Agrícola 36 (1): 24-35. DOI: https://doi.org/10.1590/1809-4430-Eng.Agric.v36n1p24-35/2016
Tommaselli, J. T. G., Bacchi, O. O. S. (2001). Calibração de um equipamento de TDR para medida de umidade de solos. Pesquisa Agropecuária Brasileira 36 (9): 1145-1154. DOI: https://doi.org/10.1590/S0100-204X2001000900008
Topp, GC, Davis, JL, Annan, AP. (1980). Determinação eletromagnética do conteúdo de água no solo: Medições em linhas de transmissão coaxial. Water resource research 16 (3): 574-582. DOI: https://doi.org/10.1029/WR016i003p00574
Vaz, C. (2008). Aplicabilidade e limitações da TDR para a medida da umidade em solos brasileiros. In: Workshop de aplicações de técnicas eletromagnéticas para o monitoramento Ambiental. Taubaté: UNITAU 96-116.
Villwock, R., Tavares, M.H.F., Boa, M.A.V. (2004). Calibração de um equipamento TDR em condições de campo. Irriga 9 (1): 82-88. DOI: https://doi.org/10.15809/irriga.2004v9n1p82-88
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Copyright (c) 2020 Abinel Bianchessi Dagher, Arthur Carniato Sanches, Fernanda Lamede Ferreira de Jesus, Rodrigo Couto Santos, Fagner Lopes Theodoro, Adriano Bicioni Pacheco, Cristiane Fernandes Lisboa, Timóteo Herculino da Silva Barros, Débora Pantojo de Souza, João Pedro Rodrigues da Silva, Bruno Machado Antunes

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Accepted 2020-11-27
Published 2020-12-01