Efecto de los cultivos intercalados en la arquitectura del dossel forrajero y el perfil nutricional de las gramíneas templadas

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i11.19831

Palabras clave:

Avena sativa L. IPR Esmeralda; Avena strigosa Schreb IAPAR 61; Competência; Densidad de macollos; X Triticosecale Wittmack Tpolo 981.

Resumen

Este artículo tuvo como objetivo evaluar el impacto de los cultivos intercalados entre especies de avena y triticale, durante tres ciclos de defoliación. El experimento se llevó a cabo en dos inviernos consecutivos, en un diseño de bloques al azar con parcelas divididas en el tiempo (20 parcelas) con cinco combinaciones de especies, cuatro bloques y tres de pastoreo. Las principales parcelas fueron combinaciones de especies: avena negra (Avena strigosa cv. IAPAR 61) - BO, avena blanca (Avena sativa cv. IPR Esmeralda) - WO, triticale (X Triticosecale Wittmack cv. Tpolo 981) - T; los consorcios avena negra + triticale - BOT, y avena blanca + triticale - WOT. Las subparcelas fueron los tres ciclos de pastoreo inicialmente programados para ocurrir cada 28 días. El cultivo intercalado entre avena y triticale no afectó la producción de materia seca (MS), pero aumentó la concentración de proteína cruda (CP) (aproximadamente 1.85% más alta en WOT en comparación con WO; y 2.72% más alta en BOT que BO). También se incrementó el número de hojas, de 4,2 (WO) y 3,7 (BO) a 7,6 (WOT) y 7,2 (BOT) hojas en la macolla principal. Durante los ciclos de pastoreo, la tasa máxima promedio de crecimiento (2,72 t MS ha-1 ºCd-1), macollos por planta (10 macollos planta-1) y altura de macollos principales (53,2 cm) se obtuvieron por unanimidad en la tercera defoliación. Los cambios observados no redujeron la calidad nutricional de los pastos, por lo que ambos consorcios están indicados para estas condiciones.

Citas

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Publicado

05/09/2021

Cómo citar

HOPPEN, S. M.; NERES, M. A. .; OLIVEIRA, P. S. R. de .; OLIVEIRA, E. de; NATH, C. D. Efecto de los cultivos intercalados en la arquitectura del dossel forrajero y el perfil nutricional de las gramíneas templadas. Research, Society and Development, [S. l.], v. 10, n. 11, p. e401101119831, 2021. DOI: 10.33448/rsd-v10i11.19831. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/19831. Acesso em: 17 jul. 2024.

Número

Sección

Ciencias Agrarias y Biológicas