Yield and nutritional value of biomass sorghum (BRS 716) managed in different row spacing and maturity at harvest in the semiarid region of Brazil.

The objective was to evaluate the structural, yield and nutritional characteristics of biomass sorghum BRS 716 managed in different row planting spacing and harvest age in a semiarid region of Brazil. Three row spacing (45, 70 and 90 cm; plots) and four maturity at harvest (70, 100, 130 and 160 days; subplots) were evaluated following a randomized block design in a 3 x 4 split plot arrangement, with eight blocks. The useful area was 3 x 15 m. Variation in soil fertility in the area was the blocking factor. There was interaction between row spacing and maturity at harvest (P < 0.05) on plant height (P = 0.01), dry matter yield (DMY; P < 0.01) and proportion of senescent material (P = 0.01). The DMY observed at the age of 160 days and spacing of 90 cm was 41.40% higher than the DMY at the same age and in spacings of 45 and 70 cm (mean of 21.45 t/ha). As the maturity at harvest increased, there was a reduction in the crude protein content (P < 0.01), potential degradability (P < 0.01) and effective degradability (P < 0.01) of dry matter, and the content of non-fiber carbohydrates (P < 0.01), total digestible nutrients (P < 0.01) and the readily soluble fraction (P < 0.01) of the dry matter increased. Considering the yield and nutritional characteristics of biomass sorghum BRS 716 managed in the semiarid region for silage production, the row spacing of 90 cm and the maturity at harvest of 160 days after planting are recommended.

Bibliographic Details

Main Authors:	SOUZA, I. D. A. dos S., ROCHA JÚNIOR, V. R., MONÇÃO, F. P., PARRELLA, R. A. da C., CORDEIRO, M. W. S., CARVALHO, C. da C. S., RIGUEIRA, J. P. S., ASPIAZÚ, I., SILVA, F. V. e, DELVAUX JÚNIOR, N. de A. D.
Other Authors:	ICARO DANIEL ALVES DOS SANTOS SOUZA, Mestrando, Universidade Estadual de Montes Claros; VICENTE RIBEIRO ROCHA JÚNIOR, Universidade Estadual de Montes Claros; FLÁVIO PINTO MONÇÃO, Universidade Estadual de Montes Claros; RAFAEL AUGUSTO DA COSTA PARRELLA, CNPMS; MATHEUS WILSON SILVA CORDEIRO, Mestrando, Universidade Estadual de Montes Claros; CINARA DA CUNHA SIQUEIRA CARVALHO, Universidade Estadual de Montes Claros; JOÃO PAULO SAMPAIO RIGUEIRA, Universidade Estadual de Montes Claros; IGNACIO ASPIAZÚ, Universidade Estadual de Montes Claros; FREDSON VIEIRA E SILVA, Universidade Estadual de Montes Claros; NELSON DE ABREU DELVAUX JÚNIOR, Universidade Estadual de Montes Claros.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2021-09-08
Subjects:	Cinética ruminal, Sorghum Bicolor, Rendimento, Matéria Seca, Biomassa, Espaçamento, Plantio,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1134112
Tags:	Add Tag No Tags, Be the first to tag this record!