Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/881285
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dc.contributor.authorPACIULLO, D. S. C.
dc.contributor.authorCASTRO, C. R. T. de
dc.contributor.authorGOMIDE, C. A. de M.
dc.contributor.authorFERNANDES, P. B.
dc.contributor.authorROCHA, W. S. D. da
dc.contributor.authorMULLER, M. D.
dc.contributor.authorROSSIELO, R. O. P.
dc.date.accessioned2024-02-15T14:32:26Z-
dc.date.available2024-02-15T14:32:26Z-
dc.date.created2011-03-17
dc.date.issued2010
dc.identifier.citationScientia Agricola, v. 67, n. 5, p. 598-603, 2010.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/881285-
dc.descriptionShade in silvopastoral systems improves the thermal comfort of animals, but it may also affect the pasture productivity and can contribute to soil compaction in the shaded areas due to the increase in the number of animals looking for comfort. The effect of grazing at various distances from tree rows (under the tree canopy, at 6 and at 12 m away from the trees) on the soil bulk density and on the aerial and root biomass of Brachiaria decumbens was evaluated in both the dry and the rainy seasons. The study was carried out on an Orthic Ferralsol in a randomized block design with two replications. Tree rows were composed of Eucalyptus grandis and Acacia mangium species, and the paddocks were submitted to a rotational stocking management, using Holstein (Bos taurus) × Zebu (Bos indicus) heifers. The shade intensity in the pasture decreased with an increasing distance from the tree row. Soil bulk density did not vary with the distance from the tree row, but varied seasonally, being greater in the rainy season (1.47 g cm-3) than in the dry season (1.28 g cm-3). Green forage and root mass, expressed as dry matter, were lower under the tree canopy and were greater in the rainy season. There were decreases of 22.3 and 41.4% in the aerial and root biomasses, respectively, in the tree rows. The greatest shoot/root ratio for B. decumbens under moderate and intensive shading indicates a modification in the forage biomass allocation pattern that favours the aerial development in detriment of the root system.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectBiomassa de raiz
dc.subjectMassa de forragem
dc.subjectRelação parte aérea/raiz
dc.titleSoil bulk density and biomass partitioning of Brachiaria decumbens in a silvopastoral system.
dc.typeArtigo de periódico
dc.subject.thesagroCompactação do Solo
dc.subject.thesagroSombreamento
riaa.ainfo.id881285
riaa.ainfo.lastupdate2024-02-15
dc.identifier.doihttps://doi.org/10.1590/S0103-90162010000500014
dc.contributor.institutionDOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; CARLOS RENATO TAVARES DE CASTRO, CNPGL; CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL; PRISCILLA BELIGOLI FERNANDES, UFRRJ; WADSON SEBASTIAO DUARTE DA ROCHA, CNPGL; MARCELO DIAS MULLER, CNPGL; ROBERTO OSCAR PEREYRA ROSSIELO, UFRRJ.
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