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Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy.
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Biblioteca (s) :  INIA Las Brujas.
Fecha :  19/01/2022
Actualizado :  20/01/2022
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  RUBIO, V.; QUINCKE, A.; ERNST, O.
Afiliación :  VALENTINA RUBIO DELLEPIANE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN ANDRES QUINCKE WALDEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; OSWALDO ERNST, Dep. de Producción Vegetal, Facultad de Agronomía, Estación Experimental Mario Alberto Cassinoni, Universidad de la República, Ruta 3, km 363, Paysandú, 60000, Uruguay.
Título :  Deep tillage and nitrogen do not remediate cumulative soil deterioration effects of continuous cropping.
Complemento del título :  Soil Tillage, Conservation, and Management.
Fecha de publicación :  2021
Fuente / Imprenta :  Agronomy Journal, 2021, Volume 113, Issue 6, Pages 5584-5596. doi: https://doi.org/10.1002/agj2.20927
ISSN :  0002-1962
DOI :  10.1002/agj2.20927
Idioma :  Inglés
Notas :  Article history: Received 19 July 2021; Accepted 12 October 2021; Published online 25 November 2021. Corresponding author: Rubio, V.; Instituto Nacional de Investigación Agropecuaria (INIA), Programa de Producción y Sustentabilidad Ambiental, Estación Experimental INIA La Estanzuela, Ruta 50 km 11, Colonia, Uruguay; email:vrubio@inia.org.uy -- Supporting information: Additional supporting information may be found in the online version of the article at the publisher?s website.
Contenido :  ABSTRACT. - Short-term solutions like increasing N fertilization and decompaction with deep tillage (DT) have been proposed to mitigate soil degradation in continuous cropping systems. However, the joint evaluation of these factors in established no-till systems is limited. This work aims to quantify corn yield losses generated by the cumulative degradation of soil quality of intensified no-till cropping systems, quantify to what extent yield losses could be mitigated by soil DT and N fertilization, and identify the most important process involved in yield reductions. Eleven experiments were installed during 2014 and 2015, on a typic Argiudoll with different soil quality generated by more than 50 years of contrasting land uses. A split-plot design was employed; the main plots were for DT (with and without) whereas the subplots were four N rates (0, 60, 120, and 240 kg ha?1). Overall, soil physical quality (SPQ) and carbon losses were associated with yield depletions. An increase in bulk density of 0.1 g cm?3 was associated with a 15.8% yield decrease. Deep tillage improved SPQ and modified water and N dynamics. However, these changes were small, variable, and did not affect corn growth. N fertilization improved yields but did not eliminate differences linked with land degradation and previous crop effects. Soil organic carbon had a better association with yields than bulk density, macroporosity, and penetration resistance. The results of this study highlight the importance o... Presentar Todo
Palabras claves :  Continuous annual agriculture systems (CA); Crop-pasture rotations (CPR); Deep tillage (DT); Nitrogen (N); Soil organic carbon (SOC); Soil physical quality (SPQ).
Asunto categoría :  F01 Cultivo
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB102910 - 1PXIAP - DDPP/Agronomy Journal/2021

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Registro completo
Biblioteca (s) :  INIA Tacuarembó.
Fecha actual :  12/04/2016
Actualizado :  05/06/2017
Tipo de producción científica :  Poster
Autor :  LUZARDO, S.; MONTOSSI, F.; SAN JULIÁN, R.; CUADRO, R.; BRITO, G.; RISSO, D.
Afiliación :  SANTIAGO FELIPE LUZARDO VILLAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBERTO SAN JULIAN SANCHEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WASHINGTON ROBIN CUADRO LOPEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO WALTER BRITO DIAZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO FERNANDO RISSO RIET, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título :  Effect of grazing system with different forage and supplementation allowances on Hereford steers performance and meat quality in Uruguay. [Poster] + [Resumen].
Fecha de publicación :  2008
Fuente / Imprenta :  In: International Congress of Meat Science and Technology (ICoMST), 54o., Cape Town, Sudáfrica, 2008.
Idioma :  Inglés
Contenido :  Uruguayan meat production systems are based mainly on grazing pastures. More intensive systems have been growing by adding concentrate to grazing animals to improve performance and beef carcass and meat quality. Thirty two Hereford steers of 20 months of age, were randomly assigned to 4 treatments as a result of combining 2 levels of forage allowance (LFA: 2% and 4% of live weight LW) and supplementation (S: 0.8 and 1.6 % of ground sorghum), where: T1 = 4 % LFA + 0 % S; T2 = 2 % LFA + 0 % S; T3 = 2 % LFA + 0.8 % S and T4 = 2 % LFA + 1.6 % S. Steers from T1 and T4 produced heavier carcasses (HCW) and higher back fat thickness (BFT). When HCW is adjusted by final live weight (FLW) the differences disappeared, showing that differences were due basically for different final weight. Same tendency was observed for the weight of the most valuable meat cuts. Treatments did no affect (P>0.05) ultimate pH, intramuscular fat, meat color at 48 hours after slaughter, tenderness of meat aged for 7 and 20 days. No treatment differences on PUFA concentration and PUFA/SFA and n6/n3 ratio were found. However, meat of T4 animals presented the higher concentration of MUFA, particularly oleic fatty acid. Meat of treatments based only on pasture (T1 and T2) presented the higher concentration of linolenic and stearic fatty acids. Meat produced on grass-fed or combined with low supplement levels, could promote human health.
Palabras claves :  MEAT QUALITY; STOCKING RATE.
Thesagro :  CALIDAD DE CARNE; CARNE; SUPLEMENTACION; URUGUAY.
Asunto categoría :  L01 Ganadería
URL :  http://www.ainfo.inia.uy/digital/bitstream/item/5663/1/Poster-ICoMST-08-SL.PDF
http://www.ainfo.inia.uy/digital/bitstream/item/6811/1/eFFECT-2008.pdf
Marc :  Presentar Marc Completo
Registro original :  INIA Tacuarembó (TBO)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
TBO101175 - 1INIPS - DD
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