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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.
Fecha :  18/01/2022
Actualizado :  18/01/2022
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  MOOJEN, F.G.; BREMM, C.; LACA, E.A.; MACHADO, D.R.; SAVIAN, J.V.; CARVALHO P.C.D.F.
Afiliación :  FERNANDA G. MOOJEN, Grazing Ecology Research Group, Federal University of Rio Grande do Sul - Porto Alegre, Rio Grande do Sul, Brazil.; CAROLINA BREMM, Grazing Ecology Research Group, Federal Univ. Rio Grande do Sul - Porto Alegre, Rio Grande do Sul, Brazil; Department of Agricultural Diagnosis and Research, Secretary of Agriculture, Livestock and Rural Development-Porto Alegre, Rio Grande do Sul, Brazil; EMILIO A. LACA, Department of Plant Sciences, University of California - Davis, Davis, CA, United States.; DÉBORA R. MACHADO, Grazing Ecology Research Group, Federal University of Rio Grande do Sul - Porto Alegre, Rio Grande do Sul, Brazil.; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PAULO C. DE F. CARVALHO, Grazing Ecology Research Group, Federal University of Rio Grande do Sul - Porto Alegre, Rio Grande do Sul, Brazil.
Título :  Herbage allowance and stocking method effect on grazing systems: Results of a long-term experiment.
Fecha de publicación :  2021
Fuente / Imprenta :  Grass and Forage Science, 2021. doi: https://doi.org/10.1111/gfs.12556
ISSN :  0142-5242
DOI :  10.1111/gfs.12556
Idioma :  Inglés
Notas :  Article history: Received 12 October 2020; Revised 25 September 2021; Accepted 28 October 2021; First published 23 November 2021. Corresponding author: Moojen, F.G.; Grazing Ecology Research Group, Federal University of Rio Grande do Sul - Porto Alegre, Rio Grande do Sul, Brazil; email:femoojen@hotmail.com
Contenido :  ABSTRACT. - Sward management is critical for animal performance in pastoral environments. We evaluated the performance of sheep grazing Italian ryegrass pastures under factorial combinations of two stocking methods (SM) (continuous and rotational) and two herbage allowances (HA) (10% and 20% of LWT) over 9 years. Average daily gain (ADG) was greater in continuous than in rotational stocking (p <.001) and in HA-20% when compared with HA-10% (p =.002). Weight gain per hectare was greater in HA-10% than HA-20% (p <.001). HA and total herbage production were the most important factors determining live weight (LW) gain per hectare, whilst sheep ADG relies upon sward parameters (i.e., sward height). Moreover, to increase sheep LW production per hectare in grazing systems, the amount of herbage production and its availability to animals is more important than the SM. These outcomes provide the basis to build sound grazing systems through the optimization of sward management. © 2021 John Wiley & Sons Ltd.
Palabras claves :  Decision tree; Grazing management; Herbage production; Italian ryegrass; Sheep; Sward height.
Asunto categoría :  --
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB102907 - 1PXIAP - DDPP/GFS/2021

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Registro completo
Biblioteca (s) :  INIA Las Brujas.
Fecha actual :  04/03/2024
Actualizado :  04/03/2024
Tipo de producción científica :  Artículos en Revistas Indexadas Nacionales
Circulación / Nivel :  Nacional - --
Autor :  BERRUETA, C.; GARCIA, C.; GRASSO, R.
Afiliación :  MARIA CECILIA BERRUETA MOREIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CLAUDIO CESAR GARCIA GALLARRETA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RAFAEL GILLSON GRASSO RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título :  Sodium accumulation vs. nitrate leaching under different fertigation regimes in greenhouse soils in South Uruguay. [Acumulación de sodio vs. lavado de nitrógeno en suelos bajo invernadero en el sur de Uruguay con diferentes regímenes de fertirriego.]. [Acúmulo de sódio vs. lixiviação de nitrogênio sob solos de estufas no sul do Uruguai com diferentes regimes de fertirrigação.].
Complemento del título :  Advances in Water in Agroscience. Irrigation and water management.
Fecha de publicación :  2023
Fuente / Imprenta :  Agrociencia Uruguay, 2023, Vol.27(NE1), e1189. https://doi.org/10.31285/AGRO.27.1189 -- OPEN ACCESS.
ISSN :  2730-5066
DOI :  10.31285/AGRO.27.1189
Idioma :  Inglés
Notas :  Article history: Received 24 April 2023; Accepted 21 September 2023; Published 06 February 2024. -- Editor: Álvaro Otero, Instituto Nacional de Investigación Agropecuaria (INIA), Salto, Uruguay. -- Correspondence: Cecilia Berrueta, cberrueta@inia.org.uy -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (https://creativecommons.org/licenses/by/4.0/ )
Contenido :  ABSTRACT.- In greenhouse conditions, soil salinity and N leaching depend on the provision of irrigation, the irrigation water quality and the application of fertilizers and organic amendments. The objective of this study was to quantify and analyze the accumulation and/or leaching process of NO3- and Na+ in greenhouse tomato production in the south region of Uruguay in fine-textured soil under different fertigation regimes. The study was conducted in four tomato crops during 2019/20/21 seasons. Three fertigation regimes were applied. Irrigation volume was the same for all treatments. Drainage was determined by using free drainage lysimeters. Concentration in soil solution and leaching of NO3- and Na+ was measured by monitoring soil solution and drainage solution. Yield, N uptake and N utilization efficiency were determined for each treatment. Soil total drainage was the main factor explaining N and Na+ leaching. The leaching of N ranges from 0 to 23.4 kg N ha-1 per tomato crop with total drainage between 0 and 46.2 % of total irrigation. Drainage necessary to avoid Na+ accumulation was 13 % of total irrigation. This drainage produced 8.4 kg of N leaching per ha-1 during tomato cropping period. Optimizing irrigation is the key factor to the salinity-nitrogen leaching paradox. Irrigation amount and timing should attempt: (1) to avoid excessive irrigation when NO3- concentration in soil solution is high, and (2) to apply leaching irrigation when Na+ concentration in soil soluti... Presentar Todo
Palabras claves :  Deep percolation; Eficiencia en el uso de nutrientes; Eficiência no uso de nutrientes; Irrigação; Irrigation; Nutrient use efficiency; Percolação profunda; Percolación profunda; Salinidad de suelo; Salinidade do solo; Soil salinity; Solanum lycopersicum.
Thesagro :  RIEGO.
Asunto categoría :  P30 Ciencia del suelo y manejo del suelo
URL :  http://www.ainfo.inia.uy/digital/bitstream/item/17513/1/2730-5066-1189.pdf
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB103835 - 1PXIAP - DDPP/AGROCIENCIA URUGUAY/2023/27/NE1
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