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Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy.
Registro completo
Biblioteca (s) :  INIA La Estanzuela.
Fecha :  21/02/2014
Actualizado :  15/07/2022
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  QUINCKE, A.; WORTMANN, CH.; MAMO, M.; FRANTI, T.G.; DRIJBER, R.A.; GARCÍA, J.P.
Afiliación :  JUAN ANDRES QUINCKE WALDEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CHARLES WORTMANN, University of Nebraska at Lincoln.; MARTHA MAMO, University of Nebraska at Lincoln.; THOMAS G FRANTI, University of Nebraska at Lincoln.; RHAE A. DRIJBER, University of Nebraska at Lincoln.; J.P. GARCÍA, Univ. of Nebraska-Lincoln.
Título :  One-time tillage of no-till systems: Soil physical properties, phosphorus runoff, and crop yield.
Fecha de publicación :  2007
Fuente / Imprenta :  Agronomy Journal, July 2007, Volume 99, Issue 4, Pages 1104-1110.
DOI :  10.2134/agronj2006.0321
Idioma :  Inglés
Notas :  Article history: Received: Nov 17, 2006/ Published: July, 2007.
Contenido :  Abstract: Continuous no-till (NT) has numerous benefits, including improved soil aggregate stability in the surface soil and increased rate of water infiltration, but accumulation of soil P at the soil surface with NT can increase P concentration in runoff. We hypothesized that occasional one-time tillage of NT land, conducted once in 10 or more years, can reduce P runoff and improve crop yields without reducing soil aggre- gation or increasing runoff. Research was conducted in long-term NT fields under rainfed corn (Zea mays (L.)) or sorghum (Sorghum bicolor (L.) Moench.) rotated with soybeans (Glycine max (L.) Merr.) at two locations in eastern Nebraska. Tillage treatments were applied in the spring or fall and included continuous NT, tandem disk (disk), chisel with 10-cm-wide twisted shanks, moldboard plow (MP), and mini-moldboard plow (miniMP). Subplots had either 0 or 87.4 kg P ha21 applied as composted feedlot manure before tillage. Yield and yield components were measured for 2 and 3 yr after the spring and fall one-time tillage, respectively. In Year 2 or 3 after till- age, soil sorptivity, field-saturated infiltration rate, runoff volume, runoff P loss, and soil aggregate stability were determined. Yield was not affected by the tillage 3 compost interaction, but was increased by compost application at one location and sorghum yield was af- fected by tillage treatments at the second location. Grain yield was never significantly more or less with one-time tillage as c... Presentar Todo
Palabras claves :  LOSSES FORM SOIL; NO-TILL; PHOSPHORUS; SISTEMAS SIN LABRANZA.
Thesagro :  CROP ROTATION; GLICINE MAX; RENDIMIENTO DE LOS CULTIVOS; SORGHUM; ZEA MAYS.
Asunto categoría :  P33 Química y física del suelo
Marc :  Presentar Marc Completo
Registro original :  INIA La Estanzuela (LE)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LE43816 - 1INIAP - DDPP/Agronomy Journal/2007

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Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy.
Registro completo
Biblioteca (s) :  INIA La Estanzuela.
Fecha actual :  30/05/2019
Actualizado :  10/06/2019
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Circulación / Nivel :  Internacional - --
Autor :  ZAGO, D; CANOZZI, M.E.A.; BARCELLOS, J.O,J.
Afiliación :  Department of Animal Science, Federal University of Rio Grande do Sul. Av. Bento Gonçalves n. 7712, 91540-000, Porto Alegre, RS, Brazil.; MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JULIO BARCELLOS, Department of Animal Science, Federal University of Rio Grande do Sul. Av. Bento Gonçalves n. 7712, 91540-000, Porto Alegre, RS, Brazil.
Título :  Pregnant cow nutrition and its effects on foetal weight-a meta-analysis.
Fecha de publicación :  2019
Fuente / Imprenta :  The Journal of Agricultural Science,Volume 157, Issue 1, January 2019 , pp. 83-95.
DOI :  10.1017/S0021859619000315
Idioma :  Inglés
Notas :  Article history: Received: 5 December 2018//Revised: 5 March 2019//Accepted: 3 April 2019//First published online: 9 May 2019.
Contenido :  Abstract:The prenatal development of cattle has influence on productive performance throughout postnatal life. The number of muscle and fat cells that the animal will have throughout its life is determined in the foetal stage and is influenced by nutrition of the pregnant cow. A systematic review and meta-analysis was performed to evaluate the effect of different energy levels (total digestible nutrient, TDN) and crude protein (CP) supplied to pregnant cows on foetal weight at 4 (FW4) and 8 months (FW8) and calf birth weight (CBW). Four studies and six trials involving 170 animals were assessed for FW4; four studies, four trials and 156 animals for FW8 and 48 studies, 125 trials and 9053 animals for CBW. High heterogeneity across studies was presented in FW4 (I2 = 94.4%), FW8 (I2 = 91.08%) and CBW (I2 = 96.9%). Dietary TDN and CP levels did not influence FW4. The FW8 was reduced by 2.24 kg when cows were fed 100% of their CP and TDN requirements (I2 = 0%), relative to those fed 70% of their requirements during the first and second trimesters. The CBW was reduced by 0.45 kg (I2 = 96.9%) when cows were fed 130% of their CP requirements relative to other dietary CP levels. When cows were fed 140% of their TDN requirements, CBW decreased by 2.71 kg (I2 = 98.3%) relative to other TDN levels. Dietary energy or CP levels fed above the requirements to pregnant cows restrict foetal development and CBW.
Palabras claves :  BEEF CATTLE; BIRTH WEIGHT; COW-CALF HERD; FOETAL PROGRAMMING; FOETAL WEIGHT; PESO FETAL; VACA PREÑADA.
Thesagro :  NUTRICIÓN ANIMAL.
Asunto categoría :  L51 Fisiología Animal - Nutrición
Marc :  Presentar Marc Completo
Registro original :  INIA La Estanzuela (LE)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LE102872 - 1PXIAP - DDPP/Journal of Agricultural Science/2019
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