Fecha/hora: 07/06/2024 01:03:09

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 20/04/2023
Fecha de la última actualización: | 20/04/2023
Autoria: | CASTILLO, J.; KIRK, G.J.; RIVERO, M.J.; FABINI, G.; TERRA, J.A.; AYALA, W.; ROEL, A.; IRISARRI, P.; HAEFELE, S.M.
Afiliación: | EMILSE JESUS CASTILLO VELAZQUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Sustainable Soils and Crops, Rothamsted Research, Harpenden, United Kingdom; School of Water, Energy and Environment, Cranfield University, Cranfield, United Kingdom; GUY J. KIRK, School of Water, Energy and Environment, Cranfield University, Cranfield, United Kingdom; M. JORDANA RIVERO, Net Zero and Resilient Farming, Rothamsted Research, North Wyke, Okehampton, United Kingdom; GUILLERMO SANTIAGO FABINI AMEIXEIRAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WALTER FELIZARDO AYALA SILVERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PILAR IRISARRI, Laboratorio de Microbiología, Departamento de Biología Vegetal, Universidad de la República, Montevideo, Uruguay; STEPHAN M. HAEFELE, Sustainable Soils and Crops, Rothamsted Research, Harpenden, United Kingdom.
Título: | Measured and modeled nitrogen balances in lowland rice-pasture rotations in temperate South America.
Año de publicación: | 2023
Fuente/Imprenta: | Frontiers in Sustainable Food Systems, 2023, volume 7, article 1103118. OPEN ACCESS. doi: https://doi.org/10.3389/fsufs.2023.1103118
DOI: | 10.3389/fsufs.2023.1103118
Idioma: | Inglés
Notas: | Article history: Received 20 November 2022, Accepted 13 March 2023, Published 03 April 2023. -- Correspondence author: Jesús Castillo, jcastillo@inia.org.uy -- Edited by: Sudhakar Srivastava (Banaras Hindu University, India). -- Reviewed by: Arvind K. Dubey (Center for Plant Science Innovation, University of Nebraska, United States), Abhinav Yadav (Banaras Hindu University, India). -- This article is part of the Research Topic Nitrogen Use To Improve Sustainable Yields in Agricultural Systems (https://www.frontiersin.org/research-topics/44418#articles ). -- LICENSE: This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) (http://creativecommons.org/licenses/by/4.0/ )
Contenido: | Rotational rice systems, involving pastures, other crops and/or livestock, are common in temperate South America, exemplified by the rice-pasture-livestock system of Uruguay which combines very high rice yields with tight nitrogen (N) balances. The generally good nutrient use efficiency in these systems provides a template for nutrient management in other mixed farming systems, if the underlying processes can be sufficiently well quantified and understood. Here, we studied N balances in rice-non-rice rotations in a long-term experiment in Uruguay, with the aim of parameterizing and testing the DNDC model of N dynamics for such systems for use in future work. The experiment includes three rotations: continuous rice (RI-CONT), rice-soybean (RI-SOY) and rice-pasture (RI-PAST). We considered 9 years of data on N balances (NBAL), defined as all N inputs minus all N outputs; N surplus (NSURP), defined as all N inputs minus only N outputs in food products; and N use efficiency (NUE), defined as the fraction of N inputs removed in food products. We parameterized DNDC against measured yield and input and output data, with missing data on N losses inferred from the N balance and compared with literature values. The model performance was assessed using standard indices of mean error, agreement and efficiency. © 2023 Castillo, Kirk, Rivero, Fabini, Terra, Ayala, Roel, Irisarri and Haefele.
Palabras-Clave: | DNDC model; Long-term experiment; Nitrogen budgets; Nitrogen use efficiency; Nutrient balances.
Categoría del tema: | F01 Cultivo
URL: | https://www.frontiersin.org/articles/10.3389/fsufs.2023.1103118/pdf
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (103397-1) - PXI - AP - DD - Frontiers Sustainable Food Systems/2023 -  -  - DIS