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| 78. |  | GIMÉNEZ, A.; RIOS, A. Girasol: Control de malezas In: GIMÉNEZ, A.; RESTAINO, E. (Eds.). Girasol y soja : algunos aspectos tecnológicos de producción para el litoral oeste de Uruguay. Montevideo (Uruguay): INIA, 1994. p15-23 (INIA Boletin de Divulgacion; 47) Convenio INIA - Cámara de Aceites Comestibles - Facultad de Agronomía| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
03/09/2019 |
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Actualizado : |
03/09/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
SCHENEITER, J.O.; BERTÍN, O.D.; LATTANZI, F. |
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Afiliación : |
JORGE O. SCHENEITER, Estación Experimental Agropecuaria Pergamino, INTA, Ruta 32 km 4,5, 6700, Pergamino, Buenos Aires, Argentina.; OSCAR D. BERTÍN, Estación Experimental Agropecuaria Pergamino, INTA, Ruta 32 km 4,5, 6700, Pergamino, Buenos Aires, Argentina.; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Lehrstuhl für Grünlandlehre, Technische Univ., München, Germany. |
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Título : |
Under sressful conditions, high cattle density maintains white clover abundance. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Agronomy Journal, 2019, v. 111, no. 3, p. 1198-1207, 2019. |
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DOI : |
10.2134/agronj2018.03.0186 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: Mar 19, 2018//Accepted: Nov 25, 2018//Published: March 8, 2019. |
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Contenido : |
Abstract: The aim of the present study was to evaluate the abundance and dynamics of white clover (WC) (Trifolium repens L.) under cattle grazing, in a stressful environment. To this end, we performed a 5-yr experiment in Buenos Aires province, Argentina, where treatments were low and high forage offers (LFO and HFO) of a tall fescue (TF) [Lolium arundinaceum Schreb. (Darbysh.)]?WC mixture and two sites regarding the initial existence of WC in the pasture (with and without white clover, WC+ and WC?). Climatic conditions determined periods of deficiency or abundance of plant available water in the topsoil, which interacted with the grazing management, leading to either the absence or richness of WC in the pasture. Before a drought, the basal cover of WC was 31.0 and 11.2% with LFO and HFO treatments, respectively (P < 0.001); whereas, during recovery after drought, the corresponding values were 44.0 and 2.7% (P < 0.001), respectively. Re-establishment of WC at the pasture level was poorly related to the pre-drought spatial distribution. At the beginning of the experiment, the TF tiller density was greater in WC? sites; whereas, at the end of the experiment, the opposite was observed. The N derived from biological fixation was 85.5% and differences among treatments were of small magnitude. We concluded that, at the pasture level, the abundance of WC in an environment with hot and often dry summers is favored when the competition by TF is controlled and the availability of water in the soil is not limiting. MenosAbstract: The aim of the present study was to evaluate the abundance and dynamics of white clover (WC) (Trifolium repens L.) under cattle grazing, in a stressful environment. To this end, we performed a 5-yr experiment in Buenos Aires province, Argentina, where treatments were low and high forage offers (LFO and HFO) of a tall fescue (TF) [Lolium arundinaceum Schreb. (Darbysh.)]?WC mixture and two sites regarding the initial existence of WC in the pasture (with and without white clover, WC+ and WC?). Climatic conditions determined periods of deficiency or abundance of plant available water in the topsoil, which interacted with the grazing management, leading to either the absence or richness of WC in the pasture. Before a drought, the basal cover of WC was 31.0 and 11.2% with LFO and HFO treatments, respectively (P < 0.001); whereas, during recovery after drought, the corresponding values were 44.0 and 2.7% (P < 0.001), respectively. Re-establishment of WC at the pasture level was poorly related to the pre-drought spatial distribution. At the beginning of the experiment, the TF tiller density was greater in WC? sites; whereas, at the end of the experiment, the opposite was observed. The N derived from biological fixation was 85.5% and differences among treatments were of small magnitude. We concluded that, at the pasture level, the abundance of WC in an environment with hot and often dry summers is favored when the competition by TF is controlled and the availability of wate... Presentar Todo |
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Palabras claves : |
ABUNDANCIA TREBOL BLANCO; DINÁMICA DE TRÉBOL BLANCO; HIGH FORAGE OFER (HFO); LOLIUM ARUNDINACEUM SCHREB; TALL FESCUE; WHITE CLOVER. |
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Thesagro : |
FESTUCA; LEGUMINOSAS; MANEJO DE PASTOREO; PASTURAS; TREBOL BLANCO. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02497naa a2200301 a 4500
001 1060133
005 2019-09-03
008 2019 bl uuuu u00u1 u #d
024 7 $a10.2134/agronj2018.03.0186$2DOI
100 1 $aSCHENEITER, J.O.
245 $aUnder sressful conditions, high cattle density maintains white clover abundance.$h[electronic resource]
260 $c2019
500 $aArticle history: Received: Mar 19, 2018//Accepted: Nov 25, 2018//Published: March 8, 2019.
520 $aAbstract: The aim of the present study was to evaluate the abundance and dynamics of white clover (WC) (Trifolium repens L.) under cattle grazing, in a stressful environment. To this end, we performed a 5-yr experiment in Buenos Aires province, Argentina, where treatments were low and high forage offers (LFO and HFO) of a tall fescue (TF) [Lolium arundinaceum Schreb. (Darbysh.)]?WC mixture and two sites regarding the initial existence of WC in the pasture (with and without white clover, WC+ and WC?). Climatic conditions determined periods of deficiency or abundance of plant available water in the topsoil, which interacted with the grazing management, leading to either the absence or richness of WC in the pasture. Before a drought, the basal cover of WC was 31.0 and 11.2% with LFO and HFO treatments, respectively (P < 0.001); whereas, during recovery after drought, the corresponding values were 44.0 and 2.7% (P < 0.001), respectively. Re-establishment of WC at the pasture level was poorly related to the pre-drought spatial distribution. At the beginning of the experiment, the TF tiller density was greater in WC? sites; whereas, at the end of the experiment, the opposite was observed. The N derived from biological fixation was 85.5% and differences among treatments were of small magnitude. We concluded that, at the pasture level, the abundance of WC in an environment with hot and often dry summers is favored when the competition by TF is controlled and the availability of water in the soil is not limiting.
650 $aFESTUCA
650 $aLEGUMINOSAS
650 $aMANEJO DE PASTOREO
650 $aPASTURAS
650 $aTREBOL BLANCO
653 $aABUNDANCIA TREBOL BLANCO
653 $aDINÁMICA DE TRÉBOL BLANCO
653 $aHIGH FORAGE OFER (HFO)
653 $aLOLIUM ARUNDINACEUM SCHREB
653 $aTALL FESCUE
653 $aWHITE CLOVER
700 1 $aBERTÍN, O.D.
700 1 $aLATTANZI, F.
773 $tAgronomy Journal, 2019$gv. 111, no. 3, p. 1198-1207, 2019.
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