Nitrogen and phosphorus fertilization and regrowth age on the fatty acid profile in tropical grasses during the dry and rainy seasons

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:32:18Z
Fecha de publicación2024-01-01
ResumenThe concentration of linoleic and alpha-linolenic fatty acids (FA) in grasses can be increased through agronomic techniques; however, there is little information in this regard for tropical grasses. Therefore, the objective of the study was to evaluate the effect of N fertilization and regrowth age management on the FA profile of three tropical grasses. To do this, three plots of 100 m2 each were used for the species: Urochloa decumbens (Stapf) R.D. Webster, U. humidicola (Rendle) Morrone \& Zuloaga, and Megathyrsus maximus (Jacq.) B.K. Simon \& S.W.L. Jacobs. The study was conducted during dry and rainy seasons. In each period, they were divided into two subplots and only one of them was fertilized. Grass sampling was carried out on days 20, 25, and 30 after fertilization. Five samples were taken from each subplot and an agronomic evaluation was made before each cut. The chemical composition and lipid profile were then determined. An ANOVA of a randomized complete block design with split plot arrangement was performed. The concentration of linoleic and alpha-linolenic acid was higher in M. maximus during drought (48.5 g 100 g(-1) FA) and in U. humidicola during the rainy season (55.1 g 100 g(-1) FA). This proportion was higher on day 20 (50.5 g 100 g(-1) FA) compared to that recorded on days 25 and 30 (50.1 and 45.7 g 100 g(-1) FA, respectively). The fertilized grasses had a higher concentration of linoleic and alpha-linolenic acid compared to the unfertilized ones (53.4 vs. 44.3 g 100 g(-1) FA). It is concluded that fertilization with 50-20-00 (N -P -K) increases the proportion of linoleic and alpha-linolenic acids in grasses; however, such concentration decreases with increasing plant maturity.es_ES
Doihttps://doi.org/10.4067/s0718-58392024000200291es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/4135
Idiomaenes_ES
EditorialINST INVESTIGACIONES AGROPECUARIAS - INIAes_ES
RelaciónChilean Journal of Agricultural Researches_ES
URL relacionadohttps://doi.org/10.4067/s0718-58392024000200291es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteChilean Journal of Agricultural Research
Palabra claveConjugated linoleic acides_ES
Palabra claveforage productiones_ES
Palabra clavelipid metabolismes_ES
Palabra claveruminant nutritiones_ES
TítuloNitrogen and phosphorus fertilization and regrowth age on the fatty acid profile in tropical grasses during the dry and rainy seasonses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorAcosta-Balcazar, Isabel Cristina
AutorBautista-Martinez, Yuridia
AutorEstrada-Drouaillet, Benigno
AutorGranados-Rivera, Lorenzo Danilo
AutorAcosta-Balcazar, Isabel Cristinaes_ES
AutorBautista-Martinez, Yuridiaes_ES
AutorEstrada-Drouaillet, Benignoes_ES
AutorGranados-Rivera, Lorenzo Daniloes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número2es_ES
Rango de páginas291-300es_ES
URL relacionadahttps://doi.org/10.4067/s0718-58392024000200291
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen84es_ES

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