Nutritive value and leaf/stem ratio of Siam grass with different levels of nitrogen fertilization
The objective of this trial was to assess the nutritive value and the leaf:stem ratio of the subtropical grass Siam grass (Brachiaria mutica ecotype Siam) under different levels of nitrogen (N) fertilization and sequential cuts through spring, summer and autumn. Over already established pasture plot...
| Autores principales: | , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste
2023
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/16129 https://revistas.unne.edu.ar/index.php/vet/article/view/7052 https://doi.org/10.30972/vet.3427052 |
| _version_ | 1855037430548135936 |
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| author | Royo, Leandro Sebastian Yáñez, Enrique A. Pueyo, Joaquin Dante Camacho, Maria Belen |
| author_browse | Camacho, Maria Belen Pueyo, Joaquin Dante Royo, Leandro Sebastian Yáñez, Enrique A. |
| author_facet | Royo, Leandro Sebastian Yáñez, Enrique A. Pueyo, Joaquin Dante Camacho, Maria Belen |
| author_sort | Royo, Leandro Sebastian |
| collection | INTA Digital |
| description | The objective of this trial was to assess the nutritive value and the leaf:stem ratio of the subtropical grass Siam grass (Brachiaria mutica ecotype Siam) under different levels of nitrogen (N) fertilization and sequential cuts through spring, summer and autumn. Over already established pasture plots, four increasing levels of N fertilization were applied (0, 75, 150 and 225 kg N ha-1). The design consisted in three blocks, inside each one the treatments were assigned randomly. Six cuts were done: Oct-18, Nov-28, Jan-10, Feb-21, Apr-3 and May-15. The samples were weighed, separated in leaf and stem and dried in force-draft oven and were analyzed in the laboratory. Crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), estimated digestibility (DIG) and metabolizable energy concentration (EM) were determined. Increasing levels of N fertilization have effect on dry matter yield (DM), CP, NDF, ADF. Digestibility and EM were also little affected by N fertilization. These results show that the nutritive value of this grass did not vary by the N fertilization. The major effect of the N fertilization was the high yield of DM ha-1, it increased significantly. |
| format | info:ar-repo/semantics/artículo |
| id | INTA16129 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste |
| publisherStr | Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste |
| record_format | dspace |
| spelling | INTA161292023-12-05T14:43:03Z Nutritive value and leaf/stem ratio of Siam grass with different levels of nitrogen fertilization Royo, Leandro Sebastian Yáñez, Enrique A. Pueyo, Joaquin Dante Camacho, Maria Belen Brachiaria mutica Valor Nutritivo Aplicación de Abonos Abonos Nitrogenados Digestibilidad Nutritive Value Fertilizer Application Nitrogen Fertilizers Digestibility Pasto Siam Fertilización Nitrogenada The objective of this trial was to assess the nutritive value and the leaf:stem ratio of the subtropical grass Siam grass (Brachiaria mutica ecotype Siam) under different levels of nitrogen (N) fertilization and sequential cuts through spring, summer and autumn. Over already established pasture plots, four increasing levels of N fertilization were applied (0, 75, 150 and 225 kg N ha-1). The design consisted in three blocks, inside each one the treatments were assigned randomly. Six cuts were done: Oct-18, Nov-28, Jan-10, Feb-21, Apr-3 and May-15. The samples were weighed, separated in leaf and stem and dried in force-draft oven and were analyzed in the laboratory. Crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), estimated digestibility (DIG) and metabolizable energy concentration (EM) were determined. Increasing levels of N fertilization have effect on dry matter yield (DM), CP, NDF, ADF. Digestibility and EM were also little affected by N fertilization. These results show that the nutritive value of this grass did not vary by the N fertilization. The major effect of the N fertilization was the high yield of DM ha-1, it increased significantly. El objetivo del trabajo fue evaluar el valor nutritivo y la relación hoja:tallo de la gramínea subtropical pasto Siam (Brachiaria mutica ecotipo Siam) con diferentes niveles de fertilización nitrogenada en cortes secuenciales en primavera, verano y otoño. En parcelas de la pastura ya establecidas, fueron aplicados cuatro niveles crecientes de fertilización nitrogenada (0, 75, 150, 225 kg N ha-1). El delineamiento se constituyó en tres bloques, dentro de cada uno los tratamientos se distribuyeron aleatoriamente. Se hicieron seis cortes: 18 de octubre, 28 de noviembre, 10 de enero, 21 de febrero, 3 de abril y 15 de mayo. Las muestras fueron pesadas, separadas en hoja y tallo, secadas en estufa de ventilación forzada y analizadas en laboratorio. Se determinó proteína bruta (PB), fibra detergente neutro (FDN), fibra detergente ácido (FDA), y estimadas la digestibilidad y la energía metabolizable (EM). Niveles crecientes de fertilización nitrogenada tiene efecto sobre la productividad de materia seca (MS), PB, FDN y FDA. La digestibilidad y la EM también fueron poco afectadas por la fertilización nitrogenada. Esos resultados muestran que el valor nutritivo del pasto Siam no varió con la fertilización nitrogenada. El principal efecto de la fertilización nitrogenada fue la alta productividad de MS ha-1, que aumentó significativamente. EEA Corrientes Fil: Royo, Leandro Sebastian. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina Fil: Yáñez, Enrique A. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina Fil: Pueyo, Joaquin Dante. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Corrientes; Argentina Fil: Camacho, Maria Belen. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín. Agencia De Extensión Rural San Martín; Argentina 2023-12-05T14:39:49Z 2023-12-05T14:39:49Z 2023-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/16129 https://revistas.unne.edu.ar/index.php/vet/article/view/7052 1668-4834 1669-6840 https://doi.org/10.30972/vet.3427052 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste Revista Veterinaria / Universidad Nacional del Nordeste 34 (2) : 106-110 (2023) |
| spellingShingle | Brachiaria mutica Valor Nutritivo Aplicación de Abonos Abonos Nitrogenados Digestibilidad Nutritive Value Fertilizer Application Nitrogen Fertilizers Digestibility Pasto Siam Fertilización Nitrogenada Royo, Leandro Sebastian Yáñez, Enrique A. Pueyo, Joaquin Dante Camacho, Maria Belen Nutritive value and leaf/stem ratio of Siam grass with different levels of nitrogen fertilization |
| title | Nutritive value and leaf/stem ratio of Siam grass with different levels of nitrogen fertilization |
| title_full | Nutritive value and leaf/stem ratio of Siam grass with different levels of nitrogen fertilization |
| title_fullStr | Nutritive value and leaf/stem ratio of Siam grass with different levels of nitrogen fertilization |
| title_full_unstemmed | Nutritive value and leaf/stem ratio of Siam grass with different levels of nitrogen fertilization |
| title_short | Nutritive value and leaf/stem ratio of Siam grass with different levels of nitrogen fertilization |
| title_sort | nutritive value and leaf stem ratio of siam grass with different levels of nitrogen fertilization |
| topic | Brachiaria mutica Valor Nutritivo Aplicación de Abonos Abonos Nitrogenados Digestibilidad Nutritive Value Fertilizer Application Nitrogen Fertilizers Digestibility Pasto Siam Fertilización Nitrogenada |
| url | http://hdl.handle.net/20.500.12123/16129 https://revistas.unne.edu.ar/index.php/vet/article/view/7052 https://doi.org/10.30972/vet.3427052 |
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