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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
07/02/2024 |
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Actualizado : |
07/02/2024 |
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Tipo de producción científica : |
Abstracts/Resúmenes |
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Autor : |
MACEDO, I.; ROEL, A.; AYALA, W.; PRAVIA, V.; TERRA, J.A.; PITTELKOW, C.M. |
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Afiliación : |
IGNACIO MACEDO YAPOR, University of California-Davis; ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WALTER FELIZARDO AYALA SILVERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA VIRGINIA PRAVIA NIN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAMERON M. PITTELKOW, University of California-Davis. |
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Título : |
207-4. Rice rotations affect soil organic carbon sequestration and rice yield in a temperate region of South America. [Abstract] |
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Complemento del título : |
Soil Carbon and Greenhouse Gas Emissions Community. ASA Section: Environmental Quality. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
In: ASA, CSSA, SSSA International Annual Meeting, Salt Lake City, UT. 2021. https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/134305 |
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Idioma : |
Inglés |
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Notas : |
Abstract citation: Macedo, I., Roel, A., Ayala, W., Pravia, M. V., Terra, J. A., & Pittelkow, C. M. (2021). Rice Rotations Affect Soil Organic Carbon Sequestration and Rice Yield in a Temperate Region of South America [Abstract]. ASA, CSSA, SSSA International Annual Meeting, Salt Lake City, UT. https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/134305 |
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Contenido : |
Soil organic carbon (SOC) sequestration is key in mitigating climate change. Rice systems rotated with perennial pastures are being intensified in South America to increase annual grain productivity, but the effects on SOC and rice yield remain poorly understood. These results highlight insights for the design of rice-based rotations that increase or sustain SOC and increase rice yield, helping simultaneously meet climate change and food production goals. |
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Palabras claves : |
Rice systems; Soil organic carbon (SOC) sequestration. |
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Asunto categoría : |
P30 Ciencia del suelo y manejo del suelo |
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URL : |
https://scisoc.confex.com/scisoc/2021am/prelim.cgi/Paper/134305
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Marc : |
LEADER 01562nam a2200205 a 4500
001 1064452
005 2024-02-07
008 2021 bl uuuu u01u1 u #d
100 1 $aMACEDO, I.
245 $a207-4. Rice rotations affect soil organic carbon sequestration and rice yield in a temperate region of South America. [Abstract]$h[electronic resource]
260 $aIn: ASA, CSSA, SSSA International Annual Meeting, Salt Lake City, UT. 2021. https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/134305$c2021
500 $aAbstract citation: Macedo, I., Roel, A., Ayala, W., Pravia, M. V., Terra, J. A., & Pittelkow, C. M. (2021). Rice Rotations Affect Soil Organic Carbon Sequestration and Rice Yield in a Temperate Region of South America [Abstract]. ASA, CSSA, SSSA International Annual Meeting, Salt Lake City, UT. https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/134305
520 $aSoil organic carbon (SOC) sequestration is key in mitigating climate change. Rice systems rotated with perennial pastures are being intensified in South America to increase annual grain productivity, but the effects on SOC and rice yield remain poorly understood. These results highlight insights for the design of rice-based rotations that increase or sustain SOC and increase rice yield, helping simultaneously meet climate change and food production goals.
653 $aRice systems
653 $aSoil organic carbon (SOC) sequestration
700 1 $aROEL, A.
700 1 $aAYALA, W.
700 1 $aPRAVIA, V.
700 1 $aTERRA, J.A.
700 1 $aPITTELKOW, C.M.
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Registro original : |
INIA Las Brujas (LB) |
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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
28/11/2018 |
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Actualizado : |
28/11/2018 |
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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 : |
NÚÑEZ, A.; MORON, A. |
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Afiliación : |
AGUSTIN NUÑEZ RUSSI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DAVID ALEJANDRO MORON YACOEL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Potassium dynamics in western uruguayan agricultural mollisols. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Communications in Soil Science and Plant Analysis, 30 November 2017, Volume 48, Issue 21, Pages 2558-2572. |
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DOI : |
10.1080/00103624.2017.1416134 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 4 January 2017 // Accepted 13 November 2017. |
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Contenido : |
ABSTRACT.
Knowledge of soil potassium (K) dynamics and quantification of plant-available K reserves are essential for the correct management of this nutrient. The objectives of this study, conducted in six Uruguayan mollisols, were to (i) determine the contribution of plant-available nonexchangeable K to plant nutrition, (ii) compare the ability of the ammonium acetate (NH4OAc) method and the sodium tetraphenylboron (NaBPh4) method to determine plant-available K, and (iii) quantify the effect of K fixation and release processes on the ability of both methods to estimate changes in K availability due to different K balances. In a greenhouse experiment, perennial ryegrass (Lolium perenne, cv. Horizon) was grown over a period of 320 days in six soils fertilized with 0, 100, 200, and 400 mg K kg?1. We measured plant K uptake and the changes in soil K status related to different K balances using NH4OAc and NaBPh4. Use of NaBPh4 resulted in a more accurate determination of plant-available K (R2 = 0.97 vs. 0.78) and soil K balance (R2 = 0.73 vs. 0.63), but neither of the methods was suitable for identifying positive K balances. However, when positive balances were established by K addition and incubation without plant growth, both methods related well with K balances. Again, NaBPh4 was better than NH4OAc (R2 = 0.98 and 0.88, respectively). The more accurate determination of plant K uptake and the strongest relationship with K balance of NaBPh4 was due to the extraction of exchangeable K plus a proportion of plant-available nonexchangeable K. Soil?plant interactions enhance soil K fixation in forms that are available to plant absorption but are not extractable by the chemical methods considered in this study.
© 2017 Taylor & Francis. MenosABSTRACT.
Knowledge of soil potassium (K) dynamics and quantification of plant-available K reserves are essential for the correct management of this nutrient. The objectives of this study, conducted in six Uruguayan mollisols, were to (i) determine the contribution of plant-available nonexchangeable K to plant nutrition, (ii) compare the ability of the ammonium acetate (NH4OAc) method and the sodium tetraphenylboron (NaBPh4) method to determine plant-available K, and (iii) quantify the effect of K fixation and release processes on the ability of both methods to estimate changes in K availability due to different K balances. In a greenhouse experiment, perennial ryegrass (Lolium perenne, cv. Horizon) was grown over a period of 320 days in six soils fertilized with 0, 100, 200, and 400 mg K kg?1. We measured plant K uptake and the changes in soil K status related to different K balances using NH4OAc and NaBPh4. Use of NaBPh4 resulted in a more accurate determination of plant-available K (R2 = 0.97 vs. 0.78) and soil K balance (R2 = 0.73 vs. 0.63), but neither of the methods was suitable for identifying positive K balances. However, when positive balances were established by K addition and incubation without plant growth, both methods related well with K balances. Again, NaBPh4 was better than NH4OAc (R2 = 0.98 and 0.88, respectively). The more accurate determination of plant K uptake and the strongest relationship with K balance of NaBPh4 was due to the extraction of exchangea... Presentar Todo |
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Palabras claves : |
ILLITE; NONEXCHANGEABLE POTASSIUM; POTASSIUM RESERVES; SODIUM TETRAPHENYLBORON. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02475naa a2200205 a 4500
001 1059316
005 2018-11-28
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1080/00103624.2017.1416134$2DOI
100 1 $aNÚÑEZ, A.
245 $aPotassium dynamics in western uruguayan agricultural mollisols.$h[electronic resource]
260 $c2017
500 $aArticle history: Received 4 January 2017 // Accepted 13 November 2017.
520 $aABSTRACT. Knowledge of soil potassium (K) dynamics and quantification of plant-available K reserves are essential for the correct management of this nutrient. The objectives of this study, conducted in six Uruguayan mollisols, were to (i) determine the contribution of plant-available nonexchangeable K to plant nutrition, (ii) compare the ability of the ammonium acetate (NH4OAc) method and the sodium tetraphenylboron (NaBPh4) method to determine plant-available K, and (iii) quantify the effect of K fixation and release processes on the ability of both methods to estimate changes in K availability due to different K balances. In a greenhouse experiment, perennial ryegrass (Lolium perenne, cv. Horizon) was grown over a period of 320 days in six soils fertilized with 0, 100, 200, and 400 mg K kg?1. We measured plant K uptake and the changes in soil K status related to different K balances using NH4OAc and NaBPh4. Use of NaBPh4 resulted in a more accurate determination of plant-available K (R2 = 0.97 vs. 0.78) and soil K balance (R2 = 0.73 vs. 0.63), but neither of the methods was suitable for identifying positive K balances. However, when positive balances were established by K addition and incubation without plant growth, both methods related well with K balances. Again, NaBPh4 was better than NH4OAc (R2 = 0.98 and 0.88, respectively). The more accurate determination of plant K uptake and the strongest relationship with K balance of NaBPh4 was due to the extraction of exchangeable K plus a proportion of plant-available nonexchangeable K. Soil?plant interactions enhance soil K fixation in forms that are available to plant absorption but are not extractable by the chemical methods considered in this study. © 2017 Taylor & Francis.
653 $aILLITE
653 $aNONEXCHANGEABLE POTASSIUM
653 $aPOTASSIUM RESERVES
653 $aSODIUM TETRAPHENYLBORON
700 1 $aMORON, A.
773 $tCommunications in Soil Science and Plant Analysis, 30 November 2017, Volume 48, Issue 21, Pages 2558-2572.
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