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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
24/05/1996 |
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Data da última atualização: |
24/05/1996 |
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Autoria: |
SPEHAR, C. R.; SOUZA, P. I. de M. de. |
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Título: |
Development sustainable cropping systems for the Brazilian Savannas. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
In: INTERNATIONAL WORKSHOP: moist savannas of Africa: potentials and constraints for crop production, 1994, Cotonou, Republic of Benin. Proceedings. Ibadan, Nigeria: IITA / Rome, Italy: FAO, 1995. |
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Páginas: |
p.325-356. |
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Idioma: |
Inglês |
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Conteúdo: |
The Brazilian savannas (cerrados) cover an area of 200 million ha. and were on the fringe of agriculture in the country until two decades ago. This extensive low input upland rice and pasture system has been replaced by modern soybean production. Late maturing and aluminum tolerance have expanded soybean adaptability in this environment, supplying 50% of the national production. Breeding work on other traditionally cultivated plants is also reviewed and their potential in the production systems is discussed. Research on improving soil fertility, land development and tillage are discussed in relation to soil conservation and organic matter maintenance. Alternative cropping systems which enhance soil fertility are also presented. |
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Palavras-Chave: |
Brasil; Cultural methods; Desenvolvimento sustentado; Sustainability; Sustentabilidade. |
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Thesagro: |
Cerrado; Conservação do Solo; Cultivo do Solo; Fertilidade do Solo; Glycine Max; Manejo do Solo; Matéria Orgânica; Pratica Cultural; Soja. |
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Thesaurus Nal: |
Brazil; cropping systems; organic matter; soil conservation; soil fertility; soil management; soybeans; tillage. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01964naa a2200409 a 4500
001 1551692
005 1996-05-24
008 1995 bl uuuu u00u1 u #d
100 1 $aSPEHAR, C. R.
245 $aDevelopment sustainable cropping systems for the Brazilian Savannas.
260 $c1995
300 $ap.325-356.
520 $aThe Brazilian savannas (cerrados) cover an area of 200 million ha. and were on the fringe of agriculture in the country until two decades ago. This extensive low input upland rice and pasture system has been replaced by modern soybean production. Late maturing and aluminum tolerance have expanded soybean adaptability in this environment, supplying 50% of the national production. Breeding work on other traditionally cultivated plants is also reviewed and their potential in the production systems is discussed. Research on improving soil fertility, land development and tillage are discussed in relation to soil conservation and organic matter maintenance. Alternative cropping systems which enhance soil fertility are also presented.
650 $aBrazil
650 $acropping systems
650 $aorganic matter
650 $asoil conservation
650 $asoil fertility
650 $asoil management
650 $asoybeans
650 $atillage
650 $aCerrado
650 $aConservação do Solo
650 $aCultivo do Solo
650 $aFertilidade do Solo
650 $aGlycine Max
650 $aManejo do Solo
650 $aMatéria Orgânica
650 $aPratica Cultural
650 $aSoja
653 $aBrasil
653 $aCultural methods
653 $aDesenvolvimento sustentado
653 $aSustainability
653 $aSustentabilidade
700 1 $aSOUZA, P. I. de M. de
773 $tIn: INTERNATIONAL WORKSHOP: moist savannas of Africa: potentials and constraints for crop production, 1994, Cotonou, Republic of Benin. Proceedings. Ibadan, Nigeria: IITA / Rome, Italy: FAO, 1995.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
22/12/2017 |
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Data da última atualização: |
27/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
MORENZ, D. A.; MORENZ, M. J. F.; PACIULLO, D. S. C.; GOMIDE, C. A. de M.; LEDO, F. J. da S.; LOPES, F. C. F. |
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Afiliação: |
Danilo Antonio Morenz, UFRRJ; MIRTON JOSE FROTA MORENZ, CNPGL; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL; FRANCISCO JOSE DA SILVA LEDO, CNPGL; FERNANDO CESAR FERRAZ LOPES, CNPGL. |
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Título: |
Agronomic characteristics and nutritive value of elephant grass clones managed under rotational stocking during the dry period. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 38, n. 6, p. 3817-3828, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to evaluate the agronomic characteristics and nutritional value of two clones of elephant grass (CNPGL 00-1-3 and BRS Kurumi) operating under rotational stocking in the dry season. A completely randomized design with repeated measures (grazing cycles) and three replicates (paddocks) was used. Clones were managed under rotational stocking with a defoliation interval of 24 days and four days of occupation of paddocks, using Holstein x Gyr heifers with mean body weight of 150 kg. The evaluations were conducted in April/May, May/June, June/July and July/August 2010. Green forage mass was influenced by clone and grazing cycle, with higher mean value observed for CNPGL 03-01-00, which was 17% higher than the value observed for BRS Kurumi, and there was decreased of dry mass of green forage with the advance of grazing cycles. Leaf mass was influenced only by grazing cycle, with gradual reduction from the first to the third cycle. However, in fourth cycle was increase in biomass of leaves, which did not differ from that observed in the second cycle. There was interaction for dry matter production of stem, being observed differences in the first and third cycles for the clones. There was no effect of the factors studied for the production of senescent material. The leaf:stem ratio was influenced by grazing cycles, with interaction of the factors studied. The clone BRS Kurumi kept the leaf:stem ratio stable over the cycles, while clone CNPGL 1-3-00 presented a decrease in leaf:stem ratio from first until to third cycle. The content of crude protein (PB) was not influenced by the factors studied, with average values of 15.3% and 15.8% PB for the CNPGL 00-1-3 and BRS Kurumi clones. Neutral detergent fiber (NDF) and the in vitro dry matter digestibility (IVDMD) were affected only by grazing cycles. The highest values of NDF were observed in the three first grazing cycles, with values of 55.5%, 56.0% and 55.7% from the first to the third grazing cycle, respectively, while in the fourth cycle was obtained the value of 50.5%. There was a decrease in the IVDMD until the third cycle. In the fourth cycle the IVDMD values were similar to the first cycle. The clones did not differ in relation to biomass production, morphological composition and nutritional value, during the dry season. MenosThis study aimed to evaluate the agronomic characteristics and nutritional value of two clones of elephant grass (CNPGL 00-1-3 and BRS Kurumi) operating under rotational stocking in the dry season. A completely randomized design with repeated measures (grazing cycles) and three replicates (paddocks) was used. Clones were managed under rotational stocking with a defoliation interval of 24 days and four days of occupation of paddocks, using Holstein x Gyr heifers with mean body weight of 150 kg. The evaluations were conducted in April/May, May/June, June/July and July/August 2010. Green forage mass was influenced by clone and grazing cycle, with higher mean value observed for CNPGL 03-01-00, which was 17% higher than the value observed for BRS Kurumi, and there was decreased of dry mass of green forage with the advance of grazing cycles. Leaf mass was influenced only by grazing cycle, with gradual reduction from the first to the third cycle. However, in fourth cycle was increase in biomass of leaves, which did not differ from that observed in the second cycle. There was interaction for dry matter production of stem, being observed differences in the first and third cycles for the clones. There was no effect of the factors studied for the production of senescent material. The leaf:stem ratio was influenced by grazing cycles, with interaction of the factors studied. The clone BRS Kurumi kept the leaf:stem ratio stable over the cycles, while clone CNPGL 1-3-00 presented a decreas... Mostrar Tudo |
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Palavras-Chave: |
Forage mass; Morphological composition. |
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Thesaurus NAL: |
chemical composition; crude protein. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/169759/1/Artigo-Agronomic.pdf
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Marc: |
LEADER 03064naa a2200229 a 4500
001 2083458
005 2023-01-27
008 2017 bl uuuu u00u1 u #d
100 1 $aMORENZ, D. A.
245 $aAgronomic characteristics and nutritive value of elephant grass clones managed under rotational stocking during the dry period.$h[electronic resource]
260 $c2017
520 $aThis study aimed to evaluate the agronomic characteristics and nutritional value of two clones of elephant grass (CNPGL 00-1-3 and BRS Kurumi) operating under rotational stocking in the dry season. A completely randomized design with repeated measures (grazing cycles) and three replicates (paddocks) was used. Clones were managed under rotational stocking with a defoliation interval of 24 days and four days of occupation of paddocks, using Holstein x Gyr heifers with mean body weight of 150 kg. The evaluations were conducted in April/May, May/June, June/July and July/August 2010. Green forage mass was influenced by clone and grazing cycle, with higher mean value observed for CNPGL 03-01-00, which was 17% higher than the value observed for BRS Kurumi, and there was decreased of dry mass of green forage with the advance of grazing cycles. Leaf mass was influenced only by grazing cycle, with gradual reduction from the first to the third cycle. However, in fourth cycle was increase in biomass of leaves, which did not differ from that observed in the second cycle. There was interaction for dry matter production of stem, being observed differences in the first and third cycles for the clones. There was no effect of the factors studied for the production of senescent material. The leaf:stem ratio was influenced by grazing cycles, with interaction of the factors studied. The clone BRS Kurumi kept the leaf:stem ratio stable over the cycles, while clone CNPGL 1-3-00 presented a decrease in leaf:stem ratio from first until to third cycle. The content of crude protein (PB) was not influenced by the factors studied, with average values of 15.3% and 15.8% PB for the CNPGL 00-1-3 and BRS Kurumi clones. Neutral detergent fiber (NDF) and the in vitro dry matter digestibility (IVDMD) were affected only by grazing cycles. The highest values of NDF were observed in the three first grazing cycles, with values of 55.5%, 56.0% and 55.7% from the first to the third grazing cycle, respectively, while in the fourth cycle was obtained the value of 50.5%. There was a decrease in the IVDMD until the third cycle. In the fourth cycle the IVDMD values were similar to the first cycle. The clones did not differ in relation to biomass production, morphological composition and nutritional value, during the dry season.
650 $achemical composition
650 $acrude protein
653 $aForage mass
653 $aMorphological composition
700 1 $aMORENZ, M. J. F.
700 1 $aPACIULLO, D. S. C.
700 1 $aGOMIDE, C. A. de M.
700 1 $aLEDO, F. J. da S.
700 1 $aLOPES, F. C. F.
773 $tSemina: Ciências Agrárias$gv. 38, n. 6, p. 3817-3828, 2017.
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Embrapa Gado de Leite (CNPGL) |
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