Ainfo Consulta

Catálogo de Información Agropecuaria

Bibliotecas INIA

 

Botón Actualizar


Botón Actualizar

Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy.
Registro completo
Biblioteca (s) :  INIA Las Brujas; INIA Treinta y Tres.
Fecha :  25/01/2019
Actualizado :  25/01/2019
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  PRAVIA, V.; KEMANIAN, A. R.; TERRA, J.A.; SHI, Y.; MACEDO, I.; GOSLEE, S.
Afiliación :  MARIA VIRGINIA PRAVIA NIN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ARMEN R. KEMANIAN, Department of Plant Science, The Pennsylvania State University, USA.; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; YUNING SHI, Department of Ecosystem Science and Management, The Pennsylvania State University, USA.; IGNACIO MACEDO YAPOR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SARAH GOSLEE, Pasture Systems and Watershed Management Research Unit, USDA-ARS, USA.
Título :  Soil carbon saturation, productivity, and carbon and nitrogen cycling in crop-pasture rotations.
Fecha de publicación :  2019
Fuente / Imprenta :  Agricultural Systems, May 2019, volume 171, pages 13-22.
ISSN :  0308-521X
DOI :  10.1016/j.agsy.2018.11.001
Idioma :  Inglés
Notas :  Article history: Received 30 December 2017 // Received in revised form 2 November 2018 // Accepted 2 November 2018. Funding for this work was provided by the Instituto Nacional de Investigación Agropecuaria (INIA-Uruguay) and the USDA-ARS Research Agreement Contract #58-1902-1-165 (Modeling of multispecies pasture growth and management). Appendices.
Contenido :  ABSTRACT. Agricultural systems integrating perennial grass-legume pastures in rotation with grain crops sustain high crop yields while preserving soil organic carbon (Cs) with low nitrogen (N) fertilizer inputs. We hypothesize that Cs saturation in the topsoil may explain the favorable C and N cycling in these systems. We tested this hypothesis by evaluating and simulating three contrasting crop and pasture rotational systems from a 20-year no-till experiment in Treinta y Tres, Uruguay. The systems were: 1) Continuous annual cropping (CC); 2) crop-pasture rotation with two years of crops and four years of pastures (CP); and 3) perennial pasture (PP). Using the Cycles agroecosystems model, we evaluated the inclusion or exclusion of a Cs saturation algorithm. The model simulated forage, soybean, and sorghum grain yields correctly, with low root mean square error (RMSE) of 1.5, 0.7 and 1.0 Mg ha−1, respectively. Measurements show Cs accretion and Cs decline for the first and second half of the experiment, respectively. The Cs accretion rate was highest for PP, while the Cs decline was highest for CC (1.3 vs −0.6 Mg ha−1 y−1 of C). The model captured this Cs dynamics and performed better when using the Cs saturation algorithm than when excluding it (RMSE 4.7 vs 6.8 Mg C ha−1 and relative RMSE of 14% and 21% for the top 15-cm). The model with saturation simulated subsoil Cs distribution with depth well, and simulated faster N turnover and greater N a... Presentar Todo
Palabras claves :  AGROECOSYSTEM MODELING; CROP PASTURE INTERSEEDNG; LONG-TERM EXPERIMENTS; SOIL ORGANIC MATTER.
Thesagro :  CARBONO ORGANICO DEL SUELO.
Asunto categoría :  --
P34 Biología del suelo
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB101764 - 1PXIAP - DDPP/AGRICULTURAL SYSTEMS/2019
TT102689 - 1PXIAP - DDPP/AGRICULTURAL SYSTEMS/2019

Volver


Botón Actualizar


Botón Actualizar

Ordenar por: RelevanciaAutorTítuloAñoImprimir registros en formato de resumen
Registros recuperados : 3
Primeira ... 1 ... Última
1.Imagen marcada / sin marcar PRAVIA, V.; SHI, Y.; GOSLEE, S.; KEMANIAN, A.R. Integrando pasturas multiespecíficas en modelos biofísicos de simulación de agroecosistemas. [Resumen]. En: CONGRESO ASOCIACIÓN URUGUAYA DE PRODUCCIÓN ANIMAL (6º, Marzo, 2018, Tacuarembó, Uruguay). Tacuarembó: AUPA, 2018. p. 163
Tipo: Abstracts/Resúmenes
Biblioteca(s): INIA Treinta y Tres.
Ver detalles del registro Acceso al objeto digitalImprime registro en el formato completo
2.Imagen marcada / sin marcar PRAVIA, V.; TERRA, J.A.; SHI, Y.; MACEDO, I.; GOSLEE, S.; KERMANIAN, A.R. Modeling long-term crop-pasture rotations productivity and carbon and nitrogen cycling considering soil carbon saturation. In: INTERNATIONAL SYMPOSIUM ON SOIL ORGANIC MATTER (6., 3-7 Sep. 2017, HARPENDER, UK9. Proceedings. Harpender, UK: BSSS, 2017. p. 26. Session 2 B: Next generation SOM models.
Tipo: Abstracts/Resúmenes
Biblioteca(s): INIA Treinta y Tres.
Ver detalles del registro Acceso restrito al objeto digitalImprime registro en el formato completo
3.Imagen marcada / sin marcar PRAVIA, V.; KEMANIAN, A. R.; TERRA, J.A.; SHI, Y.; MACEDO, I.; GOSLEE, S. Soil carbon saturation, productivity, and carbon and nitrogen cycling in crop-pasture rotations. Agricultural Systems, May 2019, volume 171, pages 13-22. Article history: Received 30 December 2017 // Received in revised form 2 November 2018 // Accepted 2 November 2018. Funding for this work was provided by the Instituto Nacional de Investigación Agropecuaria (INIA-Uruguay) and the USDA-ARS...
Tipo: Artículos en Revistas Indexadas InternacionalesCirculación / Nivel : Internacional - --
Biblioteca(s): INIA Las Brujas; INIA Treinta y Tres.
Ver detalles del registro Acceso restrito al objeto digitalImprime registro en el formato completo
Registros recuperados : 3
Primeira ... 1 ... Última
Expresión de búsqueda válido. Check!
 
 

Embrapa
Todos los derechos reservados, conforme Ley n° 9.610
Política de Privacidad
Área Restricta

Instituto Nacional de Investigación Agropecuaria
Andes 1365 - piso 12 CP 11100 Montevideo, Uruguay
Tel: +598 2902 0550 Fax: +598 2902 3666
bibliotecas@inia.org.uy

Valid HTML 4.01 Transitional