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| 28. |  | BARROS, A. C. de; CLEMENTE, C.; ALBERTON, M. L. Eficiencia de glyphosate + carfentrazone-ethyl para o controle de Trapoeraba e Erva-de-Santa Luzia, em comparacao com outros produtos, para o plantio direto na palha. In: REUNIAO DE PESQUISADORES EM CONTROLE DE PLANTAS DANINHAS NOS CERRADO, 14., 2002, Goiania, GO. Anais... Santo Antonio de Goias: Embrapa Arroz e Feijao, 2002. p. 106.| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 111 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
18/12/2017 |
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Data da última atualização: |
18/12/2017 |
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Autoria: |
BARROS, A. C. C. de; ALMEIDA, J. C. de C.; CAMARGO FILHO, S. T.; CARVALHO, C. A. B. de; CAMPANA, L. L.; MORAIS, L. F. de. |
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Afiliação: |
Ana Carolina Carvalho de Barros, UFRRJ/Instituto de Zootecnia; João Carlos de Carvalho Almeida, UFRRJ/Instituto de Zootecnia; Sergio Trabali Camargo Filho, Empresa de Pesquisa Agropecuária do Estado do Rio de Janeiro/Centro Estadual de Pesquisa em Agricultura Orgânica; Carlos Augusto Brandão de Carvalho, UFRRJ/Instituto de Zootecnia; Ludmila Lacerda Campana, Escola Estadual Sebastião Cerqueira; Leonardo Fiusa de Morais, Universidade Federal do Ceará. |
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Título: |
Root dry matter mass and distribution of Florico grass under different grazing strategies |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 12, p. 1276-1285, dez. 2017. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Massa de matéria seca de raízes e distribuição radicular do capim Florico sob diferentes estratégias de pastejo. |
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Conteúdo: |
The objective of this work was to evaluate the variations in root dry matter mass (RDM) and the percentage distribution (PD) of the root density of Florico grass (Cynodon nlemfuensis) in the 0?40-cm soil layer, when managed under different grazing strategies. Two defoliation frequencies (90 and 95% light interception, as the criterion for allowing animals in the paddock) and two defoliation severities (post-grazing heights of 20 or 30 cm) were assessed. Four seasonal evaluations of the root system were performed between the winter of 2012 and the autumn of 2013, using the monolith and trench excavation technique, collecting 1-dm3 samples from soil surface down to a depth of 40 cm, in four sequential extracts of 10 cm each. Lower RDM values (0.69 g dm-3) were obtained in winter, with the four grazing strategies, whereas higher values were observed in spring (1.64 g dm-3), for the 30-cm post-grazing residue, and in autumn (1.63 g dm-3) for the 20 cm post-grazing residue, regardless of the light interception value. Between 52 and 66% of the RDM density was observed in the 10-cm layer, for all four grazing strategies, in all seasons. |
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Palavras-Chave: |
Altura de resíduo pós-pastejo; Distribuição percentual; Espécie forrageira; Forage species; Interceptação luminosa; Light interception; Percentage distribution; Post-grazing stubble height; Root density. |
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Thesaurus NAL: |
Cynodon nlemfuensis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/169220/1/Root-dry-matter-mass-and-distribution.pdf
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Marc: |
LEADER 02269naa a2200313 a 4500
001 2082831
005 2017-12-18
008 2017 bl uuuu u00u1 u #d
100 1 $aBARROS, A. C. C. de
245 $aRoot dry matter mass and distribution of Florico grass under different grazing strategies
260 $c2017
500 $aTítulo em português: Massa de matéria seca de raízes e distribuição radicular do capim Florico sob diferentes estratégias de pastejo.
520 $aThe objective of this work was to evaluate the variations in root dry matter mass (RDM) and the percentage distribution (PD) of the root density of Florico grass (Cynodon nlemfuensis) in the 0?40-cm soil layer, when managed under different grazing strategies. Two defoliation frequencies (90 and 95% light interception, as the criterion for allowing animals in the paddock) and two defoliation severities (post-grazing heights of 20 or 30 cm) were assessed. Four seasonal evaluations of the root system were performed between the winter of 2012 and the autumn of 2013, using the monolith and trench excavation technique, collecting 1-dm3 samples from soil surface down to a depth of 40 cm, in four sequential extracts of 10 cm each. Lower RDM values (0.69 g dm-3) were obtained in winter, with the four grazing strategies, whereas higher values were observed in spring (1.64 g dm-3), for the 30-cm post-grazing residue, and in autumn (1.63 g dm-3) for the 20 cm post-grazing residue, regardless of the light interception value. Between 52 and 66% of the RDM density was observed in the 10-cm layer, for all four grazing strategies, in all seasons.
650 $aCynodon nlemfuensis
653 $aAltura de resíduo pós-pastejo
653 $aDistribuição percentual
653 $aEspécie forrageira
653 $aForage species
653 $aInterceptação luminosa
653 $aLight interception
653 $aPercentage distribution
653 $aPost-grazing stubble height
653 $aRoot density
700 1 $aALMEIDA, J. C. de C.
700 1 $aCAMARGO FILHO, S. T.
700 1 $aCARVALHO, C. A. B. de
700 1 $aCAMPANA, L. L.
700 1 $aMORAIS, L. F. de
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 52, n. 12, p. 1276-1285, dez. 2017.
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Embrapa Unidades Centrais (AI-SEDE) |
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