Data/hora: 07/06/2024 22:57:18

Biblioteca(s): | Embrapa Agrossilvipastoril.
Data corrente: | 06/03/2017
Data da última atualização: | 06/03/2017
Autoria: | PEDREIRA, B. C. e; NASCIMENTO, H. L. B. do; SILVA, N. M. F. da; MOMBACH, M. A.; CARVALHO, P.; PEREIRA, P. A. B.; DOMICIANO, L. F.; SEDANO, A. D.; CHIZZOTTI, F. H. M.; PEREIRA, D. H.
Afiliação: | BRUNO CARNEIRO E PEDREIRA, CPAMT; HEMYTHON L. B. DO NASCIMENTO, UFV-VIÇOSA; NAGELA M. F. DA SILVA, UFMT-SINOP; MIRCÉIA A. MOMBACH, UFMT-CUIABA; PERIVALDO CARVALHO, UFMT-CUIABA; PRISCILA A. B. PEREIRA, UFMT-SINOP; LEANDRO F. DOMICIANO, UFMT-CUIABA; ALISSON D. SEDANO, UFMT-SINOP; FERNANDA H. M. CHIZZOTTI, UFV-VIÇOSA; DALTON H. PEREIRA, UFMT-SINOP.
Título: | Forage yield of marandu palisadegrass on silvopastoral system under continuous grazing.
Ano de publicação: | 2016
Fonte/Imprenta: | In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado. Produção animal para as novas gerações: anais. Gramado: SBZ, 2016. Não paginado.
Idioma: | Inglês
Conteúdo: | Silvopastoral systems provide many positive aspects, such as thermal comfort to animals, improvement of soil properties, diversification of production and great potential for carbon storage. Therefore, it progressively attracts the attention and interest of more researchers and farmers. The current study aimed to evaluate Marandu palisadegrass production and structure on a silvopastoral system. The experiment was carried out at Embrapa Agrossilvipastoril in Sinop-MT from dec/2015 to mar/2016. The experimental design was a complete randomized blocks with three replicates at a split plot scheme with the northern and southern sides of eucalyptus rows seen as plots, while different distances from the rows (4, 7.5 and 15 m) as subplots. The system consisted of triple rows of eucalyptus 30 meters spaced, with Brachiaria brizantha cv. Marandu as a forage component. Within the triple rows, trees were allocated on a 3.0 x 3.5 m arrangement (distance between trees and rows). Continuous grazing was used with variable stocking rates to maintain a average sward target of 30 cm. The canopy height was assessed weekly at 50 random points per paddock. Forage production was evaluated every 28 days by the method of paired cages, with cages of 0.64 m² area. The data was analyzed using the general linear model, by PROC MIXED of SAS®. Treatments means were estimated by "LSMEANS" compared by the probability of the difference ("pdiff") at a 5% probability. There wasn't north-south side effect (P>0.05), distance effect (P>0.05) or iteration side x distance effect (P>0.05) on forage accumulation (FA). Forage mass (FM) was affected only by the distance from the rows (P<0.05), with a reduction of FM being recorded as the distance from the eucalyptus rows was reduced (3,720; 2,810 and 2,450 kg ha-1 at distances of 15, 7.5 and 4 m, respectively). This response pattern is probably a reflection of the reduction in luminosity in function of the eucalyptus rows distance. The canopy height was affected only by the different sides of the rows (P<0.05), with higher averages on the northern side (35.8 cm) and lower averages on the southern side (33.3 cm). Shading caused by eucalyptus promotes changes on sward structure and pasture production resulting in heterogeneity on the area that can reflect on animal intake and behavior.
Thesaurus Nal: | Eucalyptus; Forage production; Height.
Categoria do assunto: | --
Registro original: | Embrapa Agrossilvipastoril (CPAMT)