Effects of nitrogen fertilization on the production and composition of Cynodon plectostachyus

Mostrar todas las versiones(2)

To evaluate how the application of different doses of urea affects the production of dry matter (DM) and nutritional composition of star grass, a trial applying three levels of nitrogen fertilization was conducted: T0: control (0 kg/N/ha), T1: 40.5 kg of N/ha, T2: 81 kg of N/ha. The plot where treat...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Méndez, R, Fernández, J A., Yáñez, E A.
Formato: Artículo revista
Lenguaje:Español
Publicado: Universidad Nacional del Nordeste 2019
Materias:
Pasto estrella
fertilización nitrogenada
calidad nutricional
rendimiento
proteína
urea
Star grass
nitrogen fertilization
nutritional quality
yield
protein
Acceso en línea:https://revistas.unne.edu.ar/index.php/vet/article/view/3899
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-3899
record_format ojs
spelling I48-R154-article-38992025-02-12T21:58:58Z Effects of nitrogen fertilization on the production and composition of Cynodon plectostachyus Efecto de la fertilización nitrogenada sobre la producción y composición de Cynodon plectostachyus Méndez, R Fernández, J A. Yáñez, E A. Pasto estrella fertilización nitrogenada calidad nutricional rendimiento proteína urea Star grass nitrogen fertilization nutritional quality yield protein urea To evaluate how the application of different doses of urea affects the production of dry matter (DM) and nutritional composition of star grass, a trial applying three levels of nitrogen fertilization was conducted: T0: control (0 kg/N/ha), T1: 40.5 kg of N/ha, T2: 81 kg of N/ha. The plot where treatments were applied presents a pasture of C. plectostachyus, with 15 years of implantation and never fertilized, used for direct grazing with high loads. A complete random blocks design was used, with three treatments and three repetitions, applying the fertilizer at the beginning of the work, after a pairing cut. The cuts were made on 23/04, 14/05 and 16/06. From the samples obtained, the DM production was evaluated and at the laboratory, DM, crude protein (CP) and neutral detergent fiber (NDF) were determined. The nitrogenous fertilization of “star grass” produced an increase in DM production of up to 40% for the whole period analyzed, being more than 25% in the first cut. The CP concentration increases approximately 20% with the application of nitrogen at the beginning of autumn, maintaining this effect for 2 months, after which it disappears. The answer was greater for T1. The concentration of NDF was not affected by nitrogen fertilization, although it is observed less NDF in the first cut, for all treatments. The combination of higher concentration of CP and lower NDF, implies an improvement in the nutritional quality of the pasture in the initial post-fertilization period. Con el objetivo de evaluar cómo afecta la aplicación de diferentes dosis de urea sobre la producción de materia seca (MS) y la composición nutricional del “pasto estrella”, se realizó un ensayo aplicando tres niveles de fertilización nitrogenada: T0: testigo (0 kg/N/ha), T1: 40,5 kg/N/ ha, y T2: 81 kg/N/ha. La parcela donde se aplicaron los tratamientos presentaba una pastura de C. plectostachyus (Pilger), con 15 años de implantada y nunca fertilizada, utilizada para pastoreo directo con altas cargas. Se utilizó un diseño en bloques completos al azar, con tres tratamientos y tres repeticiones, aplicando el fertilizante al inicio del trabajo, luego de un corte de emparejamiento. Los cortes se realizaron en el mismo año, los días 23/04, 14/05 y 16/06. A partir de las muestras se obtuvo la producción de MS y en el laboratorio se efectuó la determinación de proteína bruta (PB) y fibra detergente neutro (FDN). La fertilización nitrogenada del “pasto estrella” produjo un aumento de la producción de MS, de hasta el 40% para todo el período analizado, siendo mayor a 25% en el primer corte. La concentración de PB aumentó aproximadamente un 20% con la aplicación de nitrógeno al inicio del otoño, manteniendo este efecto durante 2 meses, luego de lo cual desapareció. La respuesta fue mayor para T1. La concentración de FDN no fue afectada por la fertilización nitrogenada, aunque se observó menor FDN en el primer corte, para todos los tratamientos. La combinación de mayor concentración de PB y menor de FDN, implica una mejoría en la calidad nutricional de la pastura en el período inicial post-fertilización. Universidad Nacional del Nordeste 2019-08-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/vet/article/view/3899 10.30972/vet.3013899 Revista Veterinaria; Vol. 30 Núm. 1 (2019); 48-53 1669-6840 1668-4834 spa https://revistas.unne.edu.ar/index.php/vet/article/view/3899/3520 Derechos de autor 2019 R Méndez, J A. Fernández, E A. Yáñez https://creativecommons.org/licenses/by-nc/4.0
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
topic Pasto estrella
fertilización nitrogenada
calidad nutricional
rendimiento
proteína
urea
Star grass
nitrogen fertilization
nutritional quality
yield
protein
urea
spellingShingle Pasto estrella
fertilización nitrogenada
calidad nutricional
rendimiento
proteína
urea
Star grass
nitrogen fertilization
nutritional quality
yield
protein
urea
Méndez, R
Fernández, J A.
Yáñez, E A.
Effects of nitrogen fertilization on the production and composition of Cynodon plectostachyus
topic_facet Pasto estrella
fertilización nitrogenada
calidad nutricional
rendimiento
proteína
urea
Star grass
nitrogen fertilization
nutritional quality
yield
protein
urea
author Méndez, R
Fernández, J A.
Yáñez, E A.
author_facet Méndez, R
Fernández, J A.
Yáñez, E A.
author_sort Méndez, R
title Effects of nitrogen fertilization on the production and composition of Cynodon plectostachyus
title_short Effects of nitrogen fertilization on the production and composition of Cynodon plectostachyus
title_full Effects of nitrogen fertilization on the production and composition of Cynodon plectostachyus
title_fullStr Effects of nitrogen fertilization on the production and composition of Cynodon plectostachyus
title_full_unstemmed Effects of nitrogen fertilization on the production and composition of Cynodon plectostachyus
title_sort effects of nitrogen fertilization on the production and composition of cynodon plectostachyus
description To evaluate how the application of different doses of urea affects the production of dry matter (DM) and nutritional composition of star grass, a trial applying three levels of nitrogen fertilization was conducted: T0: control (0 kg/N/ha), T1: 40.5 kg of N/ha, T2: 81 kg of N/ha. The plot where treatments were applied presents a pasture of C. plectostachyus, with 15 years of implantation and never fertilized, used for direct grazing with high loads. A complete random blocks design was used, with three treatments and three repetitions, applying the fertilizer at the beginning of the work, after a pairing cut. The cuts were made on 23/04, 14/05 and 16/06. From the samples obtained, the DM production was evaluated and at the laboratory, DM, crude protein (CP) and neutral detergent fiber (NDF) were determined. The nitrogenous fertilization of “star grass” produced an increase in DM production of up to 40% for the whole period analyzed, being more than 25% in the first cut. The CP concentration increases approximately 20% with the application of nitrogen at the beginning of autumn, maintaining this effect for 2 months, after which it disappears. The answer was greater for T1. The concentration of NDF was not affected by nitrogen fertilization, although it is observed less NDF in the first cut, for all treatments. The combination of higher concentration of CP and lower NDF, implies an improvement in the nutritional quality of the pasture in the initial post-fertilization period.
publisher Universidad Nacional del Nordeste
publishDate 2019
url https://revistas.unne.edu.ar/index.php/vet/article/view/3899
work_keys_str_mv AT mendezr effectsofnitrogenfertilizationontheproductionandcompositionofcynodonplectostachyus
AT fernandezja effectsofnitrogenfertilizationontheproductionandcompositionofcynodonplectostachyus
AT yanezea effectsofnitrogenfertilizationontheproductionandcompositionofcynodonplectostachyus
AT mendezr efectodelafertilizacionnitrogenadasobrelaproduccionycomposiciondecynodonplectostachyus
AT fernandezja efectodelafertilizacionnitrogenadasobrelaproduccionycomposiciondecynodonplectostachyus
AT yanezea efectodelafertilizacionnitrogenadasobrelaproduccionycomposiciondecynodonplectostachyus
first_indexed 2025-05-17T05:09:46Z
last_indexed 2025-05-17T05:09:46Z
_version_ 1832343134372102144

Ejemplares similares