Respuesta del pasto alpiste (Phalaris Arundinacea L.) a la fertilización nitrogenada en Costa Rica
Reed canarygrass (Phalaris arundinacea L.) response to nitrogen fertilization rates in Costa Rica. Nitrogen is the most important nutrient in pasture production and the use of fertilizer rates should optimize biomass yield of high nutritional value with low cost and minimum impact to the environment. A study was performed with reed canarygrass (Phalaris arundinacea L.) harvested every 70 days in a commercial dairy farm located in the district of Santa Rosa of Oreamuno, in the province of Cartago from November 2010 to January 2012. Three nitrogen doses were applied (100, 200 and 300 kg.ha-1), and biomass production response and nutritional value through a completely randomized block design was evaluated. Dry matter production was not statistically different (p≥0.05) between the lowest and highest doses (2956 and 3347 kg.ha-1, respectively), while it showed lower and higher values (p≤0.0001) for samplings between February and April (1632 and 4323 kg.ha-1, respectively). Ranges in crude protein concentration (14.62 to 19.20%), neutral detergent fiber (54.50 to 70.70%) and net energy of lactation (1.14 to 1.32 Mcal.kg-1 MS) were the result of significant changes (p≤0.0001) that occurred throughout the year in the reed canarygrass. Strategies to adjust stocking rate and supplementation of dairy cattle should be taken into account in order to fulfilled seasonal limitations encountered in biomass and nutritional value of reed canarygrass during the year.
Saved in:
| Main Author: | |
|---|---|
| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad de Costa Rica
2016
|
| Online Access: | https://revistas.ucr.ac.cr/index.php/agrocost/article/view/27386 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
oai:portal.ucr.ac.cr:article27386 |
|---|---|
| record_format |
ojs |
| spelling |
oai:portal.ucr.ac.cr:article273862024-08-30T15:52:47Z Respuesta del pasto alpiste (Phalaris Arundinacea L.) a la fertilización nitrogenada en Costa Rica Respuesta del pasto alpiste (Phalaris Arundinacea L.) a la fertilización nitrogenada en Costa Rica Villalobos, Luis Biomass phenology nitrogen fertilization Phalaris biomasa fenología fertilización nitrogenada Phalaris Reed canarygrass (Phalaris arundinacea L.) response to nitrogen fertilization rates in Costa Rica. Nitrogen is the most important nutrient in pasture production and the use of fertilizer rates should optimize biomass yield of high nutritional value with low cost and minimum impact to the environment. A study was performed with reed canarygrass (Phalaris arundinacea L.) harvested every 70 days in a commercial dairy farm located in the district of Santa Rosa of Oreamuno, in the province of Cartago from November 2010 to January 2012. Three nitrogen doses were applied (100, 200 and 300 kg.ha-1), and biomass production response and nutritional value through a completely randomized block design was evaluated. Dry matter production was not statistically different (p≥0.05) between the lowest and highest doses (2956 and 3347 kg.ha-1, respectively), while it showed lower and higher values (p≤0.0001) for samplings between February and April (1632 and 4323 kg.ha-1, respectively). Ranges in crude protein concentration (14.62 to 19.20%), neutral detergent fiber (54.50 to 70.70%) and net energy of lactation (1.14 to 1.32 Mcal.kg-1 MS) were the result of significant changes (p≤0.0001) that occurred throughout the year in the reed canarygrass. Strategies to adjust stocking rate and supplementation of dairy cattle should be taken into account in order to fulfilled seasonal limitations encountered in biomass and nutritional value of reed canarygrass during the year. El nitrógeno es el nutriente de mayor importancia en la producción de pasturas y las dosis de fertilización utilizadas deben optimizar la producción de biomasa de alto valor nutricional con un bajo costo y mínima afectación al medio ambiente. Se realizó un estudio con pasto alpiste (Phalaris arundinacea L.) cosechado cada 70 días en una finca comercial productora de leche ubicada en el distrito de Santa Rosa de Oreamuno, en la provincia de Cartago entre noviembre de 2010 a enero de 2012. Se aplicó 3 dosis de fertilización nitrogenada (100, 200 y 300 kg.ha-1) y se evaluó su respuesta productiva en biomasa y valor nutricional por medio de un diseño de bloques completos al azar. La producción de materia seca no fue estadísticamente diferente (p≥0,05) entre las dosis menor y mayor (2956 y 3347 kg.ha-1, respectivamente), mientras que mostró valores menores y mayores (p≤0,0001) entre los muestreos de febrero y abril (1632 y 4323 kg.ha-1, respectivamente). Los rangos de concentraciones de proteína cruda (14,62- 19,20%), fibra detergente neutro (54,50-70,70%) y energía neta de lactancia (1,14-1,32 Mcal.kg-1 MS) fueron el resultado de los cambios significativos (p≤0,0001) que se presentaron a lo largo del año en el alpiste forrajero. Estrategias de ajustes en carga animal y suplementación del ganado lechero deben considerarse para llenar las limitantes estacionales encontradas en la biomasa y el valor nutricional del pasto alpiste durante el año. Universidad de Costa Rica 2016-12-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Artículo application/pdf https://revistas.ucr.ac.cr/index.php/agrocost/article/view/27386 10.15517/rac.v40i2.27386 Agronomía Costarricense; Agronomía Costarricense: Vol. 40, Issue 2 (July-December) Agronomía Costarricense; Agronomía Costarricense: Vol. 40, Nº 2 (Julio-Diciembre) 2215-2202 0377-9424 10.15517/rac.v40i2 spa https://revistas.ucr.ac.cr/index.php/agrocost/article/view/27386/27521 Derechos de autor 2016 Agronomía Costarricense |
| institution |
UCR |
| collection |
OJS |
| country |
Costa Rica |
| countrycode |
CR |
| component |
Revista |
| access |
En linea |
| databasecode |
rev-agrocost |
| tag |
revista |
| region |
America Central |
| libraryname |
Bibioteca de la Facultad de Agronomía |
| language |
spa |
| format |
Digital |
| author |
Villalobos, Luis |
| spellingShingle |
Villalobos, Luis Respuesta del pasto alpiste (Phalaris Arundinacea L.) a la fertilización nitrogenada en Costa Rica |
| author_facet |
Villalobos, Luis |
| author_sort |
Villalobos, Luis |
| title |
Respuesta del pasto alpiste (Phalaris Arundinacea L.) a la fertilización nitrogenada en Costa Rica |
| title_short |
Respuesta del pasto alpiste (Phalaris Arundinacea L.) a la fertilización nitrogenada en Costa Rica |
| title_full |
Respuesta del pasto alpiste (Phalaris Arundinacea L.) a la fertilización nitrogenada en Costa Rica |
| title_fullStr |
Respuesta del pasto alpiste (Phalaris Arundinacea L.) a la fertilización nitrogenada en Costa Rica |
| title_full_unstemmed |
Respuesta del pasto alpiste (Phalaris Arundinacea L.) a la fertilización nitrogenada en Costa Rica |
| title_sort |
respuesta del pasto alpiste (phalaris arundinacea l.) a la fertilización nitrogenada en costa rica |
| description |
Reed canarygrass (Phalaris arundinacea L.) response to nitrogen fertilization rates in Costa Rica. Nitrogen is the most important nutrient in pasture production and the use of fertilizer rates should optimize biomass yield of high nutritional value with low cost and minimum impact to the environment. A study was performed with reed canarygrass (Phalaris arundinacea L.) harvested every 70 days in a commercial dairy farm located in the district of Santa Rosa of Oreamuno, in the province of Cartago from November 2010 to January 2012. Three nitrogen doses were applied (100, 200 and 300 kg.ha-1), and biomass production response and nutritional value through a completely randomized block design was evaluated. Dry matter production was not statistically different (p≥0.05) between the lowest and highest doses (2956 and 3347 kg.ha-1, respectively), while it showed lower and higher values (p≤0.0001) for samplings between February and April (1632 and 4323 kg.ha-1, respectively). Ranges in crude protein concentration (14.62 to 19.20%), neutral detergent fiber (54.50 to 70.70%) and net energy of lactation (1.14 to 1.32 Mcal.kg-1 MS) were the result of significant changes (p≤0.0001) that occurred throughout the year in the reed canarygrass. Strategies to adjust stocking rate and supplementation of dairy cattle should be taken into account in order to fulfilled seasonal limitations encountered in biomass and nutritional value of reed canarygrass during the year. |
| publisher |
Universidad de Costa Rica |
| publishDate |
2016 |
| url |
https://revistas.ucr.ac.cr/index.php/agrocost/article/view/27386 |
| work_keys_str_mv |
AT villalobosluis respuestadelpastoalpistephalarisarundinacealalafertilizacionnitrogenadaencostarica |
| _version_ |
1813451655357661184 |