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Registro Completo |
Biblioteca(s): |
Embrapa Meio-Norte; Embrapa Pantanal. |
Data corrente: |
09/01/1998 |
Data da última atualização: |
26/03/1998 |
Autoria: |
KEMP, D. R.; DOWLING, P. M.; MICHALK, D. L. |
Título: |
Managing the composition of native and naturalised pastures with grazing. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
New Zealand Journal of Agricultural Research, v.39, n.4, p.569-578, 1996. |
Idioma: |
Inglês |
Conteúdo: |
Many native, naturalised, and low-input pastures have a low proportion of densirable species. Under the prevailing economic conditions, it is unikely that these pastures would be replaced with sown native species as there may not be seed of suitable cultivars available and costs would exceed returns. Better management is a preferable strategy to improve the proportion of desirable components. Grazing tactics are central to any improved management strategies for these pastures as they offer a lower cost option for land managers. Additional tactics, which will vary depending upon specific circumstances, include some use of fertiliser (to increase the rate of change), herbicides (where weed problems are particularly severe and animals are unlikely to eat the "weeds"), and fire (to reduce dead material and seed numbers and produce green leal for grazing). Several examples of manipulating pasture composition are considered. In situations where the desirable species are C3 perennial grasses (e.g., Danthonia spp., Microlaena, and Dactylis), and the less desirable are C3 annual species (e.g., Vulpia), rests over the summer period, especially in wetter years, improved the perennial grass content. In addition, extra grazing pressure in spring limits seed set by annual grasses. Where the undesirable species are C4 perennial grasses (e.g., Bothriochloa and Aristida), heavy summer grazing is more important. In some instances, the timing of a heavy grazing period will depend upon monitoring the plant community to find the "window of opportunity" when the desirable species have commpleted flowering and seed set but when the less-desirable species are starting to flower. Further development of improved management systems will require knowledge of the ecology of the principal species. Any release of new cultivars of native and low-input species should be supported by knowledge of the better management practices to maintain those species in the pasture. MenosMany native, naturalised, and low-input pastures have a low proportion of densirable species. Under the prevailing economic conditions, it is unikely that these pastures would be replaced with sown native species as there may not be seed of suitable cultivars available and costs would exceed returns. Better management is a preferable strategy to improve the proportion of desirable components. Grazing tactics are central to any improved management strategies for these pastures as they offer a lower cost option for land managers. Additional tactics, which will vary depending upon specific circumstances, include some use of fertiliser (to increase the rate of change), herbicides (where weed problems are particularly severe and animals are unlikely to eat the "weeds"), and fire (to reduce dead material and seed numbers and produce green leal for grazing). Several examples of manipulating pasture composition are considered. In situations where the desirable species are C3 perennial grasses (e.g., Danthonia spp., Microlaena, and Dactylis), and the less desirable are C3 annual species (e.g., Vulpia), rests over the summer period, especially in wetter years, improved the perennial grass content. In addition, extra grazing pressure in spring limits seed set by annual grasses. Where the undesirable species are C4 perennial grasses (e.g., Bothriochloa and Aristida), heavy summer grazing is more important. In some instances, the timing of a heavy grazing period will depend upon monitori... Mostrar Tudo |
Palavras-Chave: |
Composicao; Composition; Forrageira; Management; Native grasses; Pasture. |
Thesagro: |
Composição Botânica; Manejo; Pastagem Nativa. |
Thesaurus Nal: |
grazing. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02681naa a2200265 a 4500 001 1052230 005 1998-03-26 008 1996 bl --- 0-- u #d 100 1 $aKEMP, D. R. 245 $aManaging the composition of native and naturalised pastures with grazing. 260 $c1996 520 $aMany native, naturalised, and low-input pastures have a low proportion of densirable species. Under the prevailing economic conditions, it is unikely that these pastures would be replaced with sown native species as there may not be seed of suitable cultivars available and costs would exceed returns. Better management is a preferable strategy to improve the proportion of desirable components. Grazing tactics are central to any improved management strategies for these pastures as they offer a lower cost option for land managers. Additional tactics, which will vary depending upon specific circumstances, include some use of fertiliser (to increase the rate of change), herbicides (where weed problems are particularly severe and animals are unlikely to eat the "weeds"), and fire (to reduce dead material and seed numbers and produce green leal for grazing). Several examples of manipulating pasture composition are considered. In situations where the desirable species are C3 perennial grasses (e.g., Danthonia spp., Microlaena, and Dactylis), and the less desirable are C3 annual species (e.g., Vulpia), rests over the summer period, especially in wetter years, improved the perennial grass content. In addition, extra grazing pressure in spring limits seed set by annual grasses. Where the undesirable species are C4 perennial grasses (e.g., Bothriochloa and Aristida), heavy summer grazing is more important. In some instances, the timing of a heavy grazing period will depend upon monitoring the plant community to find the "window of opportunity" when the desirable species have commpleted flowering and seed set but when the less-desirable species are starting to flower. Further development of improved management systems will require knowledge of the ecology of the principal species. Any release of new cultivars of native and low-input species should be supported by knowledge of the better management practices to maintain those species in the pasture. 650 $agrazing 650 $aComposição Botânica 650 $aManejo 650 $aPastagem Nativa 653 $aComposicao 653 $aComposition 653 $aForrageira 653 $aManagement 653 $aNative grasses 653 $aPasture 700 1 $aDOWLING, P. M. 700 1 $aMICHALK, D. L. 773 $tNew Zealand Journal of Agricultural Research$gv.39, n.4, p.569-578, 1996.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
16/11/2020 |
Data da última atualização: |
08/01/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 4 |
Autoria: |
SILVA, J. F. M.; SILVA, V. B. de S.; EVARISTO, A. M. T.; ARAUJO, E. da S.; SOUZA, L. R.; SANAVRIA, A. |
Afiliação: |
Joice Fátima Moreira Silva, UFRRJ; Vivian Libório de Sousa Silva, UFRRJ; EVARISTO, Aline Maria Tomaz Evaristo, UFRRJ; EDNALDO DA SILVA ARAUJO, CNPAB; Luciana Rodrigues Souza, UFRRJ; Argemiro Sanavria, UFRRJ. |
Título: |
Cultivo e peletização de Moringa oleifera para uso na alimentação animal na Fazendinha Agroecológica km 47 em Seropédica, Rio de Janeiro. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Cadernos de Agroecologia, v. 15, n. 2, 2020. |
Idioma: |
Português |
Notas: |
Anais do XI Congresso Brasileiro de Agroecologia, São Cristóvão, Sergipe. |
Palavras-Chave: |
Fazendinha Agroecológica km 47; Suplementação animal. |
Thesagro: |
Produção Orgânica; Proteína Bruta. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1126622/1/Cultivo-e-peletizacao-de-Moringa-oleifera-para-uso-na-alimentacao-animal-na-Fazendinha-Agroecologica.pdf
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Marc: |
LEADER 00829naa a2200229 a 4500 001 2126622 005 2021-01-08 008 2020 bl uuuu u00u1 u #d 100 1 $aSILVA, J. F. M. 245 $aCultivo e peletização de Moringa oleifera para uso na alimentação animal na Fazendinha Agroecológica km 47 em Seropédica, Rio de Janeiro.$h[electronic resource] 260 $c2020 500 $aAnais do XI Congresso Brasileiro de Agroecologia, São Cristóvão, Sergipe. 650 $aProdução Orgânica 650 $aProteína Bruta 653 $aFazendinha Agroecológica km 47 653 $aSuplementação animal 700 1 $aSILVA, V. B. de S. 700 1 $aEVARISTO, A. M. T. 700 1 $aARAUJO, E. da S. 700 1 $aSOUZA, L. R. 700 1 $aSANAVRIA, A. 773 $tCadernos de Agroecologia$gv. 15, n. 2, 2020.
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