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| 5. |  | ROEL, A. Análisis de Cluster y Cart. Capítulo 8. Análisis de Datos. ln: Bongiovanni, R.; Chartuni Mantovani, E.; Best, S.; Roel, A., ed. Agricultura de precisión: integrando conocimientos para una agricultura moderna y sustentable. Montevideo (Uruguay): IICA/PROCISUR, 2006. p. 167-170| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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| 18. | | ROEL, A. Variabilidad espacial del rendimiento. Manejo de suelos y nutrición vegetal. II. Agricultura de precisión. ln: INIA TREINTA Y TRES. PROGRAMA NACIONAL DE ARROZ. Investigaciones agronómicas: reporte técnico anual 2003.Área cultivos. Treinta y Tres (Uruguay): INIA, 2003. cap. 3, p. 3-10. (INIA Reporte Técnico Anual; 01)| Biblioteca(s): INIA Treinta y Tres. |
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| 19. | | ROEL, A. Variabilidad espacial del rendimiento. Agricultura de precisión. ln: INIA TREINTA Y TRES. Arroz. Resultados Experimentales 2004-2005. Treinta y Tres (Uruguay): INIA, 2005. Cap. 5, p. 1-8. (INIA Serie Actividades de Difusión; 418)| Biblioteca(s): INIA Treinta y Tres. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
09/02/2022 |
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Actualizado : |
01/09/2022 |
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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 : |
MACEDO, I.; ROEL, A.; AYALA, W.; PRAVIA, V.; TERRA, J.A.; PITTELKOW, C. M. |
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Afiliación : |
IGNACIO MACEDO YAPOR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Dep. of Plant Sciences, Univ. of California, Davis, CA, USA; 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, Dep. of Plant Sciences, Univ. of California, Davis, CA, USA. |
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Título : |
Irrigated rice rotations affect yield and soil organic carbon sequestration in temperate South America. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Agronomy Journal, 2022, 1-15. OPEN ACCESS. doi: https://doi.org/10.1002/agj2.20964 |
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DOI : |
10.1002/agj2.20964 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 25 July 2021 // Accepted: 16 November 2021 // First published: 25 November 2021. Correspondence: Ignacio Macedo, email:macedoyapor@gmail.com |
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Contenido : |
Rice (Oryza sativa L.) systems rotated with perennial pastures have intensified in South America to increase annual grain productivity, but the effects on rice yield and soil quality remain poorly understood. We evaluated rice grain yield, crop and pasture biomass production, and soil organic carbon (SOC) and total nitrogen stocks (0?15-cm depth) in three rice-based rotations over 8 yr in Uruguay. Treatments were: (a) rice?pasture [a 5 yr rotation of rice?ryegrass (Lolium multiflorum Lam.)?rice, then 3.5 yr of a perennial mixture of tall fescue (Festuca arundinacea Schreb.), white clover (Trifolium repens L.), and birdsfoot trefoil (Lotus corniculatus L.)], (b) rice?soybean [a 2-yr rotation of rice?ryegrass?soybean (Glycine max [L.] Merr.)?Egyptian clover (Trifolium alexandrinum L.)], and (c) rice?cover crop (an annual rotation of rice?Egyptian clover). Rice after soybean or pasture achieved the highest yield (9.8 Mg ha?1), 9% higher than rice after rice in the rice?pasture and rice?cover crop systems. Estimated belowground biomass under rice?pasture (2.7 Mg ha?1) was 12 and 42% greater than under rice?cover crop and rice?soybean rotations, respectively. Rice?pasture showed an increase of 0.6 Mg ha?1 yr?1 of SOC; no changes were observed in the intensified rotations replacing pasture with additional rice or soybean. All systems sustained soil total N. These results provide insights for implementing sustainable rice-based rotations, with rice?pasture being the only system that increased SOC while achieving high rice yields and belowground biomass productivity. MenosRice (Oryza sativa L.) systems rotated with perennial pastures have intensified in South America to increase annual grain productivity, but the effects on rice yield and soil quality remain poorly understood. We evaluated rice grain yield, crop and pasture biomass production, and soil organic carbon (SOC) and total nitrogen stocks (0?15-cm depth) in three rice-based rotations over 8 yr in Uruguay. Treatments were: (a) rice?pasture [a 5 yr rotation of rice?ryegrass (Lolium multiflorum Lam.)?rice, then 3.5 yr of a perennial mixture of tall fescue (Festuca arundinacea Schreb.), white clover (Trifolium repens L.), and birdsfoot trefoil (Lotus corniculatus L.)], (b) rice?soybean [a 2-yr rotation of rice?ryegrass?soybean (Glycine max [L.] Merr.)?Egyptian clover (Trifolium alexandrinum L.)], and (c) rice?cover crop (an annual rotation of rice?Egyptian clover). Rice after soybean or pasture achieved the highest yield (9.8 Mg ha?1), 9% higher than rice after rice in the rice?pasture and rice?cover crop systems. Estimated belowground biomass under rice?pasture (2.7 Mg ha?1) was 12 and 42% greater than under rice?cover crop and rice?soybean rotations, respectively. Rice?pasture showed an increase of 0.6 Mg ha?1 yr?1 of SOC; no changes were observed in the intensified rotations replacing pasture with additional rice or soybean. All systems sustained soil total N. These results provide insights for implementing sustainable rice-based rotations, with rice?pasture being the only system tha... Presentar Todo |
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Palabras claves : |
ARROZ; Bulk density (BD); ROTACIONES; ROTACIONES ARROZ-PASTURAS-OTROS CULTIVOS; SOIL ORGANIC CARBON; TOTAL NITROGEN; URUGUAY. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16267/1/Agronomy-Journal-2021-Macedo-2022.pdf
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Marc : |
LEADER 02608naa a2200289 a 4500
001 1062738
005 2022-09-01
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1002/agj2.20964$2DOI
100 1 $aMACEDO, I.
245 $aIrrigated rice rotations affect yield and soil organic carbon sequestration in temperate South America.$h[electronic resource]
260 $c2022
500 $aArticle history: Received: 25 July 2021 // Accepted: 16 November 2021 // First published: 25 November 2021. Correspondence: Ignacio Macedo, email:macedoyapor@gmail.com
520 $aRice (Oryza sativa L.) systems rotated with perennial pastures have intensified in South America to increase annual grain productivity, but the effects on rice yield and soil quality remain poorly understood. We evaluated rice grain yield, crop and pasture biomass production, and soil organic carbon (SOC) and total nitrogen stocks (0?15-cm depth) in three rice-based rotations over 8 yr in Uruguay. Treatments were: (a) rice?pasture [a 5 yr rotation of rice?ryegrass (Lolium multiflorum Lam.)?rice, then 3.5 yr of a perennial mixture of tall fescue (Festuca arundinacea Schreb.), white clover (Trifolium repens L.), and birdsfoot trefoil (Lotus corniculatus L.)], (b) rice?soybean [a 2-yr rotation of rice?ryegrass?soybean (Glycine max [L.] Merr.)?Egyptian clover (Trifolium alexandrinum L.)], and (c) rice?cover crop (an annual rotation of rice?Egyptian clover). Rice after soybean or pasture achieved the highest yield (9.8 Mg ha?1), 9% higher than rice after rice in the rice?pasture and rice?cover crop systems. Estimated belowground biomass under rice?pasture (2.7 Mg ha?1) was 12 and 42% greater than under rice?cover crop and rice?soybean rotations, respectively. Rice?pasture showed an increase of 0.6 Mg ha?1 yr?1 of SOC; no changes were observed in the intensified rotations replacing pasture with additional rice or soybean. All systems sustained soil total N. These results provide insights for implementing sustainable rice-based rotations, with rice?pasture being the only system that increased SOC while achieving high rice yields and belowground biomass productivity.
653 $aARROZ
653 $aBulk density (BD)
653 $aROTACIONES
653 $aROTACIONES ARROZ-PASTURAS-OTROS CULTIVOS
653 $aSOIL ORGANIC CARBON
653 $aTOTAL NITROGEN
653 $aURUGUAY
700 1 $aROEL, A.
700 1 $aAYALA, W.
700 1 $aPRAVIA, V.
700 1 $aTERRA, J.A.
700 1 $aPITTELKOW, C. M.
773 $tAgronomy Journal, 2022, 1-15. OPEN ACCESS. doi: https://doi.org/10.1002/agj2.20964
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