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| 10. |  | CASTRO, M.; PETERSON, C.J.; DALLA RIZZA, M.; DÍAZ DELLA VALLE, P.; VÁZQUEZ, D.; IBAÑEZ, W.; ROSS, A. Influence of heat stress on wheat grain characteristics and protein molecular weight distribution. ln: International Wheat Conference, 7., 27 Nov-2 Dec 2005, Mar del Plata, AR Buck, H.T.; Nisi, J.E.; Salomón, N., ed. Wheat production in stressed environments : proceedings. Dordrecht: Springer, 2007. p. 365-371. (Developments in Plant Breeding ; 12)| Biblioteca(s): INIA La Estanzuela. |
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| 20. | | DÍAZ DE ACKERMANN, M.; KOHLI, M.M.; CERETTA, S.; ABADIE, T.; IBAÑEZ, W. Importancia de las enfermedades en la producción del trigo en Uruguay. In: EXPLORANDO ALTOS RENDIMIENTOS DE TRIGO, 1997, LA ESTANZUELA, COLONIA, UY. [Taller]. [Montevido, UY]: CIMMYT-INIA, 1997. p. 261-278.| Biblioteca(s): INIA La Estanzuela. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
06/12/2022 |
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Actualizado : |
06/12/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
PEÑA-FLEITAS, M.T.; GRASSO, R.; GALLARDO, M.; PADILLA, F.M.; DE SOUZA, R.; RODRÍGUEZ , A.; THOMPSON, R.B. |
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Afiliación : |
M. TERESA PEÑA-FLEITAS, Department of Agronomy, Univ. of Almeria, La Cañada de San Urbano, Almeria, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, La Cañada de San Urbano, 04120 Almeria, Spain; RAFAEL GILLSON GRASSO RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARISA GALLARDO, Department of Agronomy, Univ. of Almeria, La Cañada de San Urbano, Almeria, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, La Cañada de San Urbano, 04120 Almeria, Spain; FRANCISCO M. PADILLA, Department of Agronomy, Univ. of Almeria, La Cañada de San Urbano, Almeria, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, La Cañada de San Urbano, 04120 Almeria, Spain; ROMINA DE SOUZA, CENUR LN Departamento del Agua-Facultad de Agronomía, Universidad de la República, General Rivera 1350, Salto 50000, Uruguay; ALEJANDRA RODRÍGUEZ, University of Costa Rica, Sede Regional de Guanacaste, Guanacaste Province 50101, Costa Rica; RODNEY B. THOMPSON, Department of Agronomy, Univ. of Almeria, La Cañada de San Urbano, Almeria, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, La Cañada de San Urbano, 04120 Almeria, Spain. |
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Título : |
Sample temperature affects measurement of nitrate with a rapid analysis ion selective electrode system used for N management of vegetable crops. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Agronomy, 2022, Volume 12, Issue 12, 3031. OPEN ACCESS. doi: https://doi.org/10.3390/agronomy12123031 |
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ISSN : |
2073-4395 |
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DOI : |
10.3390/agronomy12123031 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 27 October 2022; Revised 23 November 2022; Accepted 26 November 2022; Published: 30 November 2022. --
This article belongs to the Special Issue Growth and Nutrient Management of Vegetables (https://www.mdpi.com/journal/agronomy/special_issues/W0EN964704 ) --
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). -- |
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Contenido : |
ABSTRACT.- The practical value of portable hand-held ion selective electrode sensors (ISE) for on-farm [NO3-] measurement to assist with crop N management of vegetable crops has been demonstrated in numerous previous studies. They provide rapid, in-situ measurement of the nitrate concentration ([NO3-]) in nutrient and soil solutions, and in petiole sap. Sample temperatures, for on-farm measurements, vary appreciably. This study evaluated the effects of sample temperature on [NO3-] measurement using two different models of a commonly used, commercially available, portable ISE meter. The temperatures (5, 10, 15, 20, and 25 °C) examined were in the range likely to be encountered in practical on-farm work. Aqueous solutions of 6, 12, and 18 mmol NO3-L-1 were prepared from KNO3, Ca(NO3)2 and NaNO3. [NO3-] was measured in three replicate samples of each of the three concentrations, made from each NO3-; compound, at each temperature. The results consistently and clearly demonstrated a strong negative linear relationship between temperature-induced errors and sample temperatures. The temperature-induced error was considerable for cooled samples, being +50% at 5 °C and +31% at 10 °C. At sample temperatures of 17-20 °C, the temperature effects were minimal. Above this range, the temperature effect caused underestimation. At 25 °C, the temperature-induced error was -24%. These results show that care must be taken to ensure that sample temperatures do not erroneously affect the measurement of [NO3-] with ISE meters. Particular care needs to be taken with both refrigerated and warmer samples.
© 2022 by the authors. MenosABSTRACT.- The practical value of portable hand-held ion selective electrode sensors (ISE) for on-farm [NO3-] measurement to assist with crop N management of vegetable crops has been demonstrated in numerous previous studies. They provide rapid, in-situ measurement of the nitrate concentration ([NO3-]) in nutrient and soil solutions, and in petiole sap. Sample temperatures, for on-farm measurements, vary appreciably. This study evaluated the effects of sample temperature on [NO3-] measurement using two different models of a commonly used, commercially available, portable ISE meter. The temperatures (5, 10, 15, 20, and 25 °C) examined were in the range likely to be encountered in practical on-farm work. Aqueous solutions of 6, 12, and 18 mmol NO3-L-1 were prepared from KNO3, Ca(NO3)2 and NaNO3. [NO3-] was measured in three replicate samples of each of the three concentrations, made from each NO3-; compound, at each temperature. The results consistently and clearly demonstrated a strong negative linear relationship between temperature-induced errors and sample temperatures. The temperature-induced error was considerable for cooled samples, being +50% at 5 °C and +31% at 10 °C. At sample temperatures of 17-20 °C, the temperature effects were minimal. Above this range, the temperature effect caused underestimation. At 25 °C, the temperature-induced error was -24%. These results show that care must be taken to ensure that sample temperatures do not erroneously affect the measurem... Presentar Todo |
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Palabras claves : |
Fertigation; Horiba; ISE; LAQUAtwin; N monitoring; Nutrient solution; Petiole sap; Quick tests; Soil solution. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16909/1/agronomy-12-03031-v3.pdf
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Marc : |
LEADER 03153naa a2200337 a 4500
001 1063825
005 2022-12-06
008 2022 bl uuuu u00u1 u #d
022 $a2073-4395
024 7 $a10.3390/agronomy12123031$2DOI
100 1 $aPEÑA-FLEITAS, M.T.
245 $aSample temperature affects measurement of nitrate with a rapid analysis ion selective electrode system used for N management of vegetable crops.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 27 October 2022; Revised 23 November 2022; Accepted 26 November 2022; Published: 30 November 2022. -- This article belongs to the Special Issue Growth and Nutrient Management of Vegetables (https://www.mdpi.com/journal/agronomy/special_issues/W0EN964704 ) -- Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). --
520 $aABSTRACT.- The practical value of portable hand-held ion selective electrode sensors (ISE) for on-farm [NO3-] measurement to assist with crop N management of vegetable crops has been demonstrated in numerous previous studies. They provide rapid, in-situ measurement of the nitrate concentration ([NO3-]) in nutrient and soil solutions, and in petiole sap. Sample temperatures, for on-farm measurements, vary appreciably. This study evaluated the effects of sample temperature on [NO3-] measurement using two different models of a commonly used, commercially available, portable ISE meter. The temperatures (5, 10, 15, 20, and 25 °C) examined were in the range likely to be encountered in practical on-farm work. Aqueous solutions of 6, 12, and 18 mmol NO3-L-1 were prepared from KNO3, Ca(NO3)2 and NaNO3. [NO3-] was measured in three replicate samples of each of the three concentrations, made from each NO3-; compound, at each temperature. The results consistently and clearly demonstrated a strong negative linear relationship between temperature-induced errors and sample temperatures. The temperature-induced error was considerable for cooled samples, being +50% at 5 °C and +31% at 10 °C. At sample temperatures of 17-20 °C, the temperature effects were minimal. Above this range, the temperature effect caused underestimation. At 25 °C, the temperature-induced error was -24%. These results show that care must be taken to ensure that sample temperatures do not erroneously affect the measurement of [NO3-] with ISE meters. Particular care needs to be taken with both refrigerated and warmer samples. © 2022 by the authors.
653 $aFertigation
653 $aHoriba
653 $aISE
653 $aLAQUAtwin
653 $aN monitoring
653 $aNutrient solution
653 $aPetiole sap
653 $aQuick tests
653 $aSoil solution
700 1 $aGRASSO, R.
700 1 $aGALLARDO, M.
700 1 $aPADILLA, F.M.
700 1 $aDE SOUZA, R.
700 1 $aRODRÍGUEZ , A.
700 1 $aTHOMPSON, R.B.
773 $tAgronomy, 2022, Volume 12, Issue 12, 3031. OPEN ACCESS. doi: https://doi.org/10.3390/agronomy12123031
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