INITIAL HEIGHT AND DEFERMENT PERIOD ON SIGNALGRASS PASTURES
DOI:
https://doi.org/10.1590/cab18043744Keywords:
Forage massAbstract
This study aimed to evaluate the initial heights (10, 20, and 30 cm) and deferment periods (171, 141, and 109 days in 2010; and 131, 100, and 71 days in 2011) of Urochloa decumbens cv. Basilisk (signal grass). The factors were arranged in split plot, in a randomized complete block design with three replications. Pastures deferred for a short period had lower masses of forage (5,977 and 6,904 kg/ha of DM in 2010 and 2011, respectively). In 2010, pastures deferred for a short period had lower mass of live stem (942 kg/ha of DM), dead leaf blade (785 kg/ha of DM), and dead stem (1282 kg/ha of DM), higher number of vegetative tillers (797 tillers/m²), fewer reproductive tillers (2 tillers/m²), less falling index (1.4), higher mass of live leaf blade (655 kg/ha of DM). The higher pastures had fewer vegetative tillers (495 and 431 tillers/m² in 2010 and 2011, respectively), larger masses of forage (5,285 and 5,942 kg/ha of DM in 2010 and 2011, respectively), dead leaf blade (968 kg kg/ha of DM in 2010) and dead stem (1,902 kg/ha of DM in 2010). Based on the results obtained in the two years, for use in July, the signal grass can be deferred for 71-109 days with an initial height of 20 to 30 cm. The initial height of 10 cm is recommended when a deferral period above 130 days is adopted.Keywords: Brachiaria decumbens; forage mass; sward height; tiller.
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Published
2017-09-27
How to Cite
GOUVEIA, F. de S.; FONSECA, D. M. da; SANTOS, M. E. R.; GOMES, V. M.; CARVALHO, A. N. de. INITIAL HEIGHT AND DEFERMENT PERIOD ON SIGNALGRASS PASTURES. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 18, 2017. DOI: 10.1590/cab18043744. Disponível em: https://revistas.ufg.br/vet/article/view/e-43744. Acesso em: 21 nov. 2024.
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ZOOTECNIA
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