Forage production in tall wheatgrass pasture according to nitrogen availability and topographic position
The goal of this work was to evaluate forage production of tall wheatgrass (Thinopyrum ponticum [Podp.] Barkworth & D.R. Dewey Phil) as a function of nitrogen (N) availability and elevation positions. Seven sites were selected on the basis of their elevation and in each, two treatments were...
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Facultad de Ciencias Agropecuarias
2017
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/agris/article/view/19044 |
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I10-R352-article-190442020-03-31T13:12:18Z Forage production in tall wheatgrass pasture according to nitrogen availability and topographic position Producción de forraje de agropiro alargado en función de la disponibilidad de nitrógeno y la posición topográfica Cicore, P. L. Berone, G. D. Alvarez Prado, A. Agnusdei, M. G. altimetría humedad del suelo pasturas suelos bajos elevation soil moisture pastures low land soils The goal of this work was to evaluate forage production of tall wheatgrass (Thinopyrum ponticum [Podp.] Barkworth & D.R. Dewey Phil) as a function of nitrogen (N) availability and elevation positions. Seven sites were selected on the basis of their elevation and in each, two treatments were evaluated: N- (0 kg N ha-1 ha) and N+ (300 kg N ha-1)]. An interaction between the position of sites and N rate was found for final accumulated above-ground biomass (AB). At N+ sites there was significant variation, whereas at N- sites no variation was observed. Variability in AB was mainly due to differences in radiation use efficiency. The data showed a negative correlation between elevation of experimental sites and AB. This would indicate that the factor that limited the forage production varies with elevation. Soil moisture content (SMC) could be this restrictive factor because of its negative correlation with elevation. Inconclusion, small variations in the elevation of sites could affect water availability and therefore affect forage productivity when there is not limiting N. El objetivo fue evaluar, en diferentes posiciones topográficas, el crecimiento de agropiro alargado (Thinopyrum ponticum [Podp.] Barkworth & D. R. Dewey Phil) bajo diferente disponibilidad de nitrógeno (N). Se seleccionaron siete sitios en función de la elevación, y en cada sitio se evaluaron dos tratamientos: N- (sin aplicación de N) y N+ (300 kg ha-1 de N). En la biomasa aérea acumulada (BA) final se detectó interacción entre el nivel de N y el sitio. En N+ se hallaron diferencias significativas entre sitios, mientras que en el tratamiento N- no se encontraron diferencias. La variabilidad de la BA se debió principalmente a diferencias en la eficiencia de uso de la radiación. La altimetría de los sitios se relacionó negativamente con la BA. Esto indicaría que el factor que limitó la producción varió con la elevación. El contenido de agua del suelo podría ser este factor porque se relacionó inversamente con la elevación. En conclusión, pequeñas variaciones de altimetría podrían provocar cambios en la disponibilidad de agua y en consecuencia en la producción de forraje, que es capaz de ser detectada cuando no hay limitantes de N. Facultad de Ciencias Agropecuarias 2017-12-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/agris/article/view/19044 10.31047/1668.298x.v34.n2.19044 AgriScientia; Vol. 34 No. 2 (2017); 91-98 AgriScientia; Vol. 34 Núm. 2 (2017); 91-98 1668-298X 10.31047/1668.298x.v34.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/19044/18959 https://revistas.unc.edu.ar/index.php/agris/article/view/19044/29322 |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-352 |
| container_title_str |
AgriScientia |
| language |
Español |
| format |
Artículo revista |
| topic |
altimetría humedad del suelo pasturas suelos bajos elevation soil moisture pastures low land soils |
| spellingShingle |
altimetría humedad del suelo pasturas suelos bajos elevation soil moisture pastures low land soils Cicore, P. L. Berone, G. D. Alvarez Prado, A. Agnusdei, M. G. Forage production in tall wheatgrass pasture according to nitrogen availability and topographic position |
| topic_facet |
altimetría humedad del suelo pasturas suelos bajos elevation soil moisture pastures low land soils |
| author |
Cicore, P. L. Berone, G. D. Alvarez Prado, A. Agnusdei, M. G. |
| author_facet |
Cicore, P. L. Berone, G. D. Alvarez Prado, A. Agnusdei, M. G. |
| author_sort |
Cicore, P. L. |
| title |
Forage production in tall wheatgrass pasture according to nitrogen availability and topographic position |
| title_short |
Forage production in tall wheatgrass pasture according to nitrogen availability and topographic position |
| title_full |
Forage production in tall wheatgrass pasture according to nitrogen availability and topographic position |
| title_fullStr |
Forage production in tall wheatgrass pasture according to nitrogen availability and topographic position |
| title_full_unstemmed |
Forage production in tall wheatgrass pasture according to nitrogen availability and topographic position |
| title_sort |
forage production in tall wheatgrass pasture according to nitrogen availability and topographic position |
| description |
The goal of this work was to evaluate forage production of tall wheatgrass (Thinopyrum ponticum [Podp.] Barkworth & D.R. Dewey Phil) as a function of nitrogen (N) availability and elevation positions. Seven sites were selected on the basis of their elevation and in each, two treatments were evaluated: N- (0 kg N ha-1 ha) and N+ (300 kg N ha-1)]. An interaction between the position of sites and N rate was found for final accumulated above-ground biomass (AB). At N+ sites there was significant variation, whereas at N- sites no variation was observed. Variability in AB was mainly due to differences in radiation use efficiency. The data showed a negative correlation between elevation of experimental sites and AB. This would indicate that the factor that limited the forage production varies with elevation. Soil moisture content (SMC) could be this restrictive factor because of its negative correlation with elevation. Inconclusion, small variations in the elevation of sites could affect water availability and therefore affect forage productivity when there is not limiting N. |
| publisher |
Facultad de Ciencias Agropecuarias |
| publishDate |
2017 |
| url |
https://revistas.unc.edu.ar/index.php/agris/article/view/19044 |
| work_keys_str_mv |
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| first_indexed |
2024-09-03T22:16:18Z |
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2024-09-03T22:16:18Z |
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