Yield and nutritive value of perennial ryegrass (Lolium perenne l.) in response to cut frequency | Rendimiento y valor nutritivo del ballico perenne (Lolium perenne l.) en respuesta a la frecuencia de corte

English. The aim of this study was to determine the effects of three cutting frequency of perennial ryegrass (Lolium perenne L.) in order to obtain the highest seasonal and annual herbage production and nutritive value. Three cutting frequencies (2, 4 and 6 weeks) were evaluated, and allocated in 4 x 4 m plots, in a completely randomized block design, with four replicates. Variables studied were dry matter production (DMP), growth rate, plant height, botanical composition and nutritive value, which were expressed on a seasonal and annual basis. The higher DMP (6,000 kg DM ha-1 year-1) was obtained at 4 and 6 wk cutting frequencies.About 72 % of annual DMP was produced in spring and summer. Growth rate was greatest (35 kg DM ha-1 day-1) and lowest (5 kg DM ha-1 day-1) in July and January, respectively (P

Spanish; Castilian. El objetivo del estudio fue determinar la frecuencia de corte que proporcione mayor rendimiento y valor nutritivo en una pradera de ballico perenne (Lolium perenne L.). Los tratamientos fueron tres frecuencias de cortes (2, 4 y 6 semanas) que se distribuyeron en parcelas de 4 x 4 m, con un diseño en bloques al azar con cuatro repeticiones. Se evaluaron: rendimiento de forraje, tasa de crecimiento diario, altura de planta, composición botánica y valor nutritivo, las que fueron expresadas en valores estacionales y anuales. Los resultados mostraron que la mayor acumulación de forraje (6,000 kg MS ha-1 año-1) se obtiene al cosechar entre 4 y 6 semanas (P