Efecto de la fertilización nitrogenada e intervalos de corte sobre el valor nutritivo potencial del pasto King grass (Pennisetum purpureum x Pennisetum typhoides). Durante la época lluviosa (ING)
Abstract
Data from a experiment that utilized King Grass forage (Pennisetum purpureum x Pennisetum typhoides) with four nitrogen fertilization levels (0, 100, 200 and 300 kg Ha-1) and five harvest intervals (35, 49, 63, 77 and 91 d) were analyzed by an analysis of variance under an split plot design. The study variables were dry matter production (DM kg Ha-1 harvest-1), crude protein production (CP kg Ha-1 harvest-1) and its CP% contents and in vitro dry matter digestibility (I.V.D.M.D). The research was done in National University, Santa Lucía Research Farms at Heredia, Costa Rica. The climatic characteristics during the research period were 19.7°C temperature and 2.000 mm rainfall mean.
Dry matter production was increased by the nitrogen fertilization (P=<0.05) CP production also was incremented by fertilization. However the I.V.D.M.D. was not affected by the fertilizer treatments.
The harvest period did increase the DM production (P=<0.05) and the CP production by cutting but there were a reduction in the CP % (P=<0.05) and I.V.D.M.D. % were fond no significative (statically) interaction among nitrogen levels and harvest period.
A preliminary recommendations for this cutting grass under our conditions are a harvest period of 63-77 d with a nitrogenous fertilization between 100 to 200 kg Ha-1.
References
Authors who publish with this journal agree to the following terms:
1. Authors guarantee the journal the right to be the first publication of the work as licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
2. Authors can set separate additional agreements for non-exclusive distribution of the version of the work published in the journal (eg, place it in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
3. The authors have declared to hold all permissions to use the resources they provided in the paper (images, tables, among others) and assume full responsibility for damages to third parties.
4. The opinions expressed in the paper are the exclusive responsibility of the authors and do not necessarily represent the opinion of the editors or the Universidad Nacional.
Uniciencia Journal and all its productions are under Creative Commons Atribución-NoComercial-SinDerivadas 4.0 Unported.
There is neither fee for access nor Article Processing Charge (APC)
Comentarios (ver términos de uso)
Most read articles by the same author(s)
- Rafael Arroyo, Eduardo Eduarte, Leonidas Villalobos, Diego Aguirre, Efecto de la época y el pastoreo sobre el valor nutritivo potencial del pasto estrella (Cynodon nlenfuensis, Vanderyst) (ING) , Uniciencia: Vol 4 No 1-2 (1987)
- Diego Aguirre, Carlos Sáenz, Jorge Camacho, Rafael Arroyo, Manuel Amador, Analisis de algunos factores que afectan el comportamiento reproductivo de varias razas de cerdos en una piara comercial de la provincia de Heredia, Costa Rica , Uniciencia: Vol 6 No 1-2 (1989)
- Marvin Arce, Eduardo Eduarte, Rafael Arroyo, José Rodríguez, Carlos Sáenz, Efecto de diferentes niveles de D.L Metionina sobre la utilización de la pulpa de café en dietas para pollos de engorde (ING) , Uniciencia: Vol 6 No 1-2 (1989)
- Cecilia Villalobos, J. Danilo Hernández, Fernando Mojica, Estudio sobre manejo de suelos y calidad de aguas en la zona sur de San Bosco - Santa Barbara, Heredia (ING) , Uniciencia: Vol 11 No 1 (1994)
- Rafael Angel Arroyo, Eduardo Eduarte, Isabel Camacho, Leonidas Villalobos, Berny Quirós, Parámetros indicadores de valor nutritivo en cinco pastos tropicales en la época lluviosa en el trópico seco de Cota Rica , Uniciencia: Vol 14 No 1 (1997)
