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Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy.
Registro completo
Biblioteca (s) :  INIA Treinta y Tres.
Fecha :  24/02/2021
Actualizado :  24/02/2021
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  TSENG, M.C.; ROEL, A.; MACEDO, I.; MARELLA, M.; TERRA, J.A.; ZORRILLA DE SAN MARTÍN, G.; PITTELKOW, C. M.
Afiliación :  MENG-CHUN TSENG, University of Illinois-Urbana-Champaign. Department of Crop Sciences. USA.; ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; IGNACIO MACEDO YAPOR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MUZIO MARELLA, SAMAN (Sociedad Anónima Molinos Arroceros Nacionales), Uruguay.; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GONZALO ROBERTO ZORRILLA DE SAN MARTÍN PEREYRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAMERON M. PITTELKOW, University of Illinois-Urbana-Champaign. Department of Crop Sciences. USA / UC Davis. Department of Plant Sciences. USA.
Título :  Field-level factors for closing yield gaps in high-yielding rice systems of Uruguay.
Fecha de publicación :  2021
Fuente / Imprenta :  Field Crops Research, February 2021, vol. 264, no. 108097. Doi: https://doi.org/10.1016/j.fcr.2021.108097
Páginas :  12 p.
DOI :  10.1016/j.fcr.2021.108097
Idioma :  Inglés
Notas :  Article history: Received 9 April 2020 / Received in revised form 12 January 2021 / Accepted 5 February 2021 / Available online 24 February 2021.
Contenido :  Abstract: Yield gap assessments at the field-level are key for developing management practices to increase crop production in a sustainable manner. Although rice is an important food crop worldwide, yield gaps remain less investigated in Latin American rice systems. In this study, we evaluated field-level factors for closing yield gaps (based on attainable farm yield, defined as the mean of top 10 % of farmers) for rice production in Uruguay using crop management and yield records from 2012 to 2017, covering approximately 70,000 ha per year (40 % of total rice area). The mean annual attainable yield gap ranged from 16 % to 22 % in fields with non-hybrid cultivars (90 % of planted area) and from 14 % to 22 % in fields with hybrid rice (10 % of planted area). Early seeding was identified as the most influential factor for reducing yield gaps in both systems, followed by N rate. Stand establishment was also important for closing yield gap in non-hybrid fields, while rotation with improved pasture was important in hybrid fields. When variables were categorized as input-related, manageable, or nonmanageable, on average manageable factors (e.g. early planting and stand stablishment) were more important than input-related factors (e.g. seed or fertilizer rate). This study highlights a simple, self-contained method using large field-level datasets to quantify yield gaps and develop strategies for improving agricultural productivity.
Palabras claves :  CROP MANAGEMENT; RICE; SISTEMA ARROZ-PASTURAS; SOUTH AMERICA; YIELD GAP.
Asunto categoría :  F01 Cultivo
Marc :  Presentar Marc Completo
Registro original :  INIA Treinta y Tres (TT)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
TT103242 - 1PXIAP - DDPP/Field-Crops-Research/2021/Roel

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Registro completo
Biblioteca (s) :  INIA Las Brujas.
Fecha actual :  06/04/2017
Actualizado :  17/12/2017
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Circulación / Nivel :  Internacional - --
Autor :  SOUZA, A.R. LEAL DE; REVILLION, J.P.P.; WAQUIL, P.D.; BELARMINO, L.C.; LANFRANCO, B.
Afiliación :  ANGELA ROZANE LEAL DE SOUZA, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil; JEAN PHILIPPE PALMA REVILLION, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil; PAULO DABDAB WAQUIL, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil; LUIZ CLOVIS BELARMINO, EMBRAPA - Empresa Brasileira de Pesquisa Agropecuária Clima Temperado, Pelotas, RS, Brasil; BRUNO ANTONIO LANFRANCO CRESPO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título :  Economic and accounting evaluation of rice milled production chains in Rio Grande do Sul (Brazil) and Uruguay with application of the Policy Analysis Matrix. [Avaliação econômica e contábil das cadeias produtivas do arroz beneficiado no Rio Grande do Sul (Brasil) e Uruguai com aplicação da Matriz de Análise de Políticas]
Fecha de publicación :  2017
Fuente / Imprenta :  Ciencia Rural, 2017, v.47 (4): 1-7.
DOI :  10.1590/0103-8478cr20151085
Idioma :  Inglés
Notas :  Article history: Received 07.28.15: Approved 10.16.16; Returned by the author 12.19.16.
Contenido :  ABSTRACT: Rice is the basis of diet for almost half of the world population, and its culture is one of the strategic agroindustrial production chains in the agribusiness environment, in both economic and social levels. Thus, the comparative analysis between the production chains of rice milled in Rio Grande do Sul (RS), Brazil, and Uruguay was mainly motivated by the interest in knowing the differences in the business environment and public policies that impact the competitiveness of this chain in both study regions. Therefore, the objective of this study was to assess the economic efficiency, competitiveness, and effects of public policies of the rice production chain of milled rice in RS (Brazil) relative to Uruguay. The data collected in this study are from the 2011-2012 harvests and indicators were calculated by applying the concepts of the policy analysis matrix (PAM). Results showed that the chains in both study regions were competitive under the existing market and policy conditions, revealed comparative advantage, transferred a high load of resources to other sectors of the economy, and satisfactorily remuneration of the domestic production factors. However, the competitiveness and comparative advantage shown in this study were not due to the encouraging intervention policies, as both production systems pay high taxes. .-.-.-.-.-.-.-.-.-.-.-.-.-. RESUMO: O arroz é a base da alimentação para quase metade da população mundial, e sua cultura se situa como uma das c... Presentar Todo
Palabras claves :  AGRIBUSINESS; COMPARATIVE ADVANTAGES; POLICY ANALYSIS; RICE CULTIVATION; RICE INDUSTRY; RICE MILLING.
Thesagro :  ARROZ; BRASIL; URUGUAY.
Asunto categoría :  --
URL :  http://www.scielo.br/pdf/cr/v47n4/1678-4596-cr-47-04-e20151085.pdf
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB101338 - 1PXIAP - DDPP/CIENCIA RURAL/2017
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