Structural and productive characteristics of Marandu and Xaraés grasses fertilized at different times after harvesting

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dc.contributor.authorPereira, Rosana Cristina [UFVJM]
dc.contributor.authorRibeiro, Karina Guimarães [UFVJM]
dc.contributor.authorAndrade, Rodrigo Duarte de [UFVJM]
dc.contributor.authorSilva, Janaina de Lima [UFVJM]
dc.contributor.authorSilva, Enilson de Barros [UFVJM]
dc.contributor.authorFonseca, Dilermando Miranda da
dc.contributor.authorCecon, Paulo Roberto
dc.contributor.authorPereira, Odilon Gomes
dc.contributor.institutionUniversidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
dc.contributor.institutionUniversidade Federal de Viçosa (UFV)
dc.date.accessioned2017-03-06T18:28:05Z
dc.date.available2017-03-06T18:28:05Z
dc.date.issued2012-03-01
dc.description.abstractsThe objective of this study was to assess the effect of applying N and K2O at different times after harvest on the structure and production characteristics of Marandu and Xaraés cultivars of Brachiaria brizantha. Two greenhouse 4 × 2 factorial experiments using a randomized block design with eight treatments and four replicates were carried out. In experiment 1, the plants in pots were fertilized weekly with 50 mg/dm³ of N and K2O until a week before a uniformity cut, for a total of four applications. After cutting, plants were fertilized with 50 mg/dm³ of N and K2O at 0, 3, 6, and 9 days. Cultivars were evaluated after 44 days of regrowth. In experiment 2, a single 50 mg/dm³ dose of N and K2O was applied a week before the uniformity cut, and 100 mg/dm³ of N and K2O were applied at 0, 4, 8, and 12 days after cutting; cultivars were evaluated after 39 days of regrowth. In experiment 1, the leaf/stem ratio and dry matter yield were influenced by the time at which fertilizers were applied. In the second experiment, the total number of leaves, expanded leaves, dead leaves, and the leaf lamina accumulated length and dry matter production were influenced by the time at which fertilizers were applied. Marandugrass had more leaves and tillers than cv. Xaraés, which, in turn, had greater height, dry matter yield and regrowth vigor. Applying nitrogen and potassium fertilizer immediately after cutting improves the structural characteristics, while the dry matter yield is maximized by applying fertilizers immediately after cutting by using lower doses of N, or at 4.5 days after cutting by using higher doses of N.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipEmpresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.identifierhttp://dx.doi.org/10.1590/S1516-35982012000300012
dc.identifier.citationPEREIRA, Rosana Cristina et al. Structural and productive characteristics of Marandu and Xaraés grasses fertilized at different times after harvesting. Revista Brasileira de Zootecnia, Viçosa, v. 41, n. 3, p. 557-564, 2012.pt_BR
dc.identifier.doi10.1590/S1516-35982012000300012
dc.identifier.issn1516-3598
dc.identifier.scieloS1516-35982012000300012
dc.identifier.urihttps://acervo.ufvjm.edu.br/items/64d97de4-6ded-44b6-980c-2ef7536c081f
dc.language.isoeng
dc.publisherSociedade Brasileira de Zootecnia
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subject.keywordCrude proteinen
dc.subject.keywordDry matteren
dc.subject.keywordLeafen
dc.subject.keywordNitrogen uptakeen
dc.subject.keywordNumber of leavesen
dc.subject.keywordNumber of tillersen
dc.titleStructural and productive characteristics of Marandu and Xaraés grasses fertilized at different times after harvestingen
dc.typeArtigopt_BR

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