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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Gado de Leite. |
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Data corrente: |
23/04/1992 |
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Data da última atualização: |
18/10/2001 |
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Autoria: |
GOMES, D. T. |
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Título: |
Establishment methods and comparative persistence of five tropical legumes in grass sods. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
[S.l.]: University of Florida, 1978. |
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Páginas: |
143p. |
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Idioma: |
Inglês |
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Notas: |
PhD. Dissertation. |
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Conteúdo: |
The main purpose of the research was to determine the effect of several seedbed-preparation methods on the establishment and persistence of five tropical legumes in two tropical grass sods. As an additional objective, the effect of the legume inclusion in the grass sods on the quantity and quality of the forage produced by the mixtures was also studied. Two small-plot *field experiments were conducted at the Agricultural Research Center, Fort Pierce, Florida, from 1 july 1976 to 30 Sept. 1978. The two experimental areas used were 3-year-old stands of 'Pangola' digitgrass (Digitaria decumbens Stent.) and 'Bigalta' limpogross (Hemarthria altissima (Pior.) Stapf et C.E. Hubbard). Five seedbed preparation methods were compared: no tillage, light discing, sod-seeding, and complete seedbed preparation. Five legumes were tested: 'Siratro' (Macroptilium atropurpureum (DC.) Urb.), centro (Centrosema pubescens Benth.); joint vetch (Aeschynommene americana L. ), 'Verano' Caribbean stylo (Stylosanthes hamata Taub.), and 'Florida' carpon desmodium (Desmodium heterocarpon (L.) DC.). The treatments were arranged in a split design with five replications. Even though all tested established quite well in mixture with pangola digitgrass, Siratro and joint vetch were the only ones that persisted and actually made a substantial contribution to the total dry-matter yields of the pangola-legume mixtures during the growing seasons ot 1977 and 1978. A pangola-legume minture containing either 50% Siratro or 50% joint vetch provided twice the dry-matter, and four to five times the crude protein yields of pangola digitgrass grown alone. In the Bigalta limpograss experiment, as in pangola digitgrass, all legumes established quite well. joint vetch, carpon desmodium, and centro performed better than the other legumes. The persitence of these legumes was most likely due to their better adaptation to the poorly drained soil conditions of the experimental area. The legume contribution to total dry-matter yields of Bigalta-legume mixtures in the 1977 and 1978 growing seasons was not very marked. The highly competitive growth chacteristic of Bigalta is believed to be the main reason for the low legume contribution to uields from the mixtures. Results of the experiments suggested that seedbed treatments might not be as critical for persistence as it is for establishment of the legumes. In the year of establishment, all legumes were significantly affected by the type of seedbed preparation and there was a substantially higher number of plants in some treatments than in others. These differences, however, were not evident 1b and 2 years after establishment when all legumes tended to reach a rather uniform population in all seedbed-preparation treatments. Joint vetch was the only legumes for which seedbed treatments were still execising their influence in the 1978 growing season. MenosThe main purpose of the research was to determine the effect of several seedbed-preparation methods on the establishment and persistence of five tropical legumes in two tropical grass sods. As an additional objective, the effect of the legume inclusion in the grass sods on the quantity and quality of the forage produced by the mixtures was also studied. Two small-plot *field experiments were conducted at the Agricultural Research Center, Fort Pierce, Florida, from 1 july 1976 to 30 Sept. 1978. The two experimental areas used were 3-year-old stands of 'Pangola' digitgrass (Digitaria decumbens Stent.) and 'Bigalta' limpogross (Hemarthria altissima (Pior.) Stapf et C.E. Hubbard). Five seedbed preparation methods were compared: no tillage, light discing, sod-seeding, and complete seedbed preparation. Five legumes were tested: 'Siratro' (Macroptilium atropurpureum (DC.) Urb.), centro (Centrosema pubescens Benth.); joint vetch (Aeschynommene americana L. ), 'Verano' Caribbean stylo (Stylosanthes hamata Taub.), and 'Florida' carpon desmodium (Desmodium heterocarpon (L.) DC.). The treatments were arranged in a split design with five replications. Even though all tested established quite well in mixture with pangola digitgrass, Siratro and joint vetch were the only ones that persisted and actually made a substantial contribution to the total dry-matter yields of the pangola-legume mixtures during the growing seasons ot 1977 and 1978. A pangola-legume minture containing either 50% Sir... Mostrar Tudo |
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Palavras-Chave: |
Estabelecimento; Feed legumes; Planta leguminosa; Stylosante; Tropical crops. |
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Thesagro: |
Aeschynomene Americana; Carrapicho; Centrosema Pubescens; Leguminosa Forrageira; Leguminosa Tropical; Macroptilium Atropurpureum; Planta Forrageira; Siratro. |
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Thesaurus Nal: |
Desmodium heterocarpon; Stylosanthes hamata. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03782nam a2200313 a 4500
001 1560259
005 2001-10-18
008 1978 bl uuuu m 00u1 u #d
100 1 $aGOMES, D. T.
245 $aEstablishment methods and comparative persistence of five tropical legumes in grass sods.
260 $a[S.l.]: University of Florida$c1978
300 $a143p.
500 $aPhD. Dissertation.
520 $aThe main purpose of the research was to determine the effect of several seedbed-preparation methods on the establishment and persistence of five tropical legumes in two tropical grass sods. As an additional objective, the effect of the legume inclusion in the grass sods on the quantity and quality of the forage produced by the mixtures was also studied. Two small-plot *field experiments were conducted at the Agricultural Research Center, Fort Pierce, Florida, from 1 july 1976 to 30 Sept. 1978. The two experimental areas used were 3-year-old stands of 'Pangola' digitgrass (Digitaria decumbens Stent.) and 'Bigalta' limpogross (Hemarthria altissima (Pior.) Stapf et C.E. Hubbard). Five seedbed preparation methods were compared: no tillage, light discing, sod-seeding, and complete seedbed preparation. Five legumes were tested: 'Siratro' (Macroptilium atropurpureum (DC.) Urb.), centro (Centrosema pubescens Benth.); joint vetch (Aeschynommene americana L. ), 'Verano' Caribbean stylo (Stylosanthes hamata Taub.), and 'Florida' carpon desmodium (Desmodium heterocarpon (L.) DC.). The treatments were arranged in a split design with five replications. Even though all tested established quite well in mixture with pangola digitgrass, Siratro and joint vetch were the only ones that persisted and actually made a substantial contribution to the total dry-matter yields of the pangola-legume mixtures during the growing seasons ot 1977 and 1978. A pangola-legume minture containing either 50% Siratro or 50% joint vetch provided twice the dry-matter, and four to five times the crude protein yields of pangola digitgrass grown alone. In the Bigalta limpograss experiment, as in pangola digitgrass, all legumes established quite well. joint vetch, carpon desmodium, and centro performed better than the other legumes. The persitence of these legumes was most likely due to their better adaptation to the poorly drained soil conditions of the experimental area. The legume contribution to total dry-matter yields of Bigalta-legume mixtures in the 1977 and 1978 growing seasons was not very marked. The highly competitive growth chacteristic of Bigalta is believed to be the main reason for the low legume contribution to uields from the mixtures. Results of the experiments suggested that seedbed treatments might not be as critical for persistence as it is for establishment of the legumes. In the year of establishment, all legumes were significantly affected by the type of seedbed preparation and there was a substantially higher number of plants in some treatments than in others. These differences, however, were not evident 1b and 2 years after establishment when all legumes tended to reach a rather uniform population in all seedbed-preparation treatments. Joint vetch was the only legumes for which seedbed treatments were still execising their influence in the 1978 growing season.
650 $aDesmodium heterocarpon
650 $aStylosanthes hamata
650 $aAeschynomene Americana
650 $aCarrapicho
650 $aCentrosema Pubescens
650 $aLeguminosa Forrageira
650 $aLeguminosa Tropical
650 $aMacroptilium Atropurpureum
650 $aPlanta Forrageira
650 $aSiratro
653 $aEstabelecimento
653 $aFeed legumes
653 $aPlanta leguminosa
653 $aStylosante
653 $aTropical crops
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
08/02/2010 |
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Data da última atualização: |
09/09/2024 |
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Tipo da produção científica: |
Autoria/Organização/Edição de Livros |
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Autoria: |
FIGUEIREDO, E. O.; BRAZ, E. M.; OLIVEIRA, M. V. N. d'. (ed.). |
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Afiliação: |
EVANDRO ORFANO FIGUEIREDO, CPAF-AC; EVALDO MUNOZ BRAZ, CNPF; MARCUS VINICIO NEVES D OLIVEIRA, CPAF-AC. |
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Título: |
Manejo de precisão em florestas tropicais: modelo digital de exploração florestal. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Rio Branco, AC: Embrapa Acre, 2009. |
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Páginas: |
183 p. |
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ISBN: |
978-85-99190-04-3 |
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Idioma: |
Português |
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Conteúdo: |
Manejo florestal de precisão: modelo de exploração e manejo de florestas naturais; Conceitos cartográficos - sistemas de referência; sistema de informações geográficas: aplicações básicas pelo ArcGIS; Diagnóstico da hidrografia da área do manejo florestal; Diagnóstico dos destaques topográficos da área de manejo florestal; Levantamento das árvores com coordenadas apropriadas com GPS de alta sensibilidade; Processamento primário dos dados e elaboração do mapa de exploração; Execução e monitoramento das operações de campo; Anexos |
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Palavras-Chave: |
Agricultura de precisión; Biometria florestal; Biometría forestal; Forest biometry; Geoespatial technology; Geotécnica; Inventario forestal; Manejo de precisão; Manejo florestal; Manejo forestal; Modeflora; Modelagem 3D; Sistema de posicionamento global; Sistemas de información geográfica; Sistemas de posicionamiento global; Tecnología geoespacial; Teledetección. |
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Thesagro: |
Administração florestal; Agricultura de precisão; Inventário florestal; Sensoriamento remoto; Sistema de informação geográfica. |
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Thesaurus NAL: |
Forest inventory; Forest management; Geographic information systems; Global positioning systems; Precision agriculture; Remote sensing. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02074nam a2200493 a 4500
001 1657133
005 2024-09-09
008 2009 bl uuuu 00u1 u #d
020 $a978-85-99190-04-3
100 1 $aFIGUEIREDO, E. O.
245 $aManejo de precisão em florestas tropicais$bmodelo digital de exploração florestal.
260 $aRio Branco, AC: Embrapa Acre$c2009
300 $a183 p.
520 $aManejo florestal de precisão: modelo de exploração e manejo de florestas naturais; Conceitos cartográficos - sistemas de referência; sistema de informações geográficas: aplicações básicas pelo ArcGIS; Diagnóstico da hidrografia da área do manejo florestal; Diagnóstico dos destaques topográficos da área de manejo florestal; Levantamento das árvores com coordenadas apropriadas com GPS de alta sensibilidade; Processamento primário dos dados e elaboração do mapa de exploração; Execução e monitoramento das operações de campo; Anexos
650 $aForest inventory
650 $aForest management
650 $aGeographic information systems
650 $aGlobal positioning systems
650 $aPrecision agriculture
650 $aRemote sensing
650 $aAdministração florestal
650 $aAgricultura de precisão
650 $aInventário florestal
650 $aSensoriamento remoto
650 $aSistema de informação geográfica
653 $aAgricultura de precisión
653 $aBiometria florestal
653 $aBiometría forestal
653 $aForest biometry
653 $aGeoespatial technology
653 $aGeotécnica
653 $aInventario forestal
653 $aManejo de precisão
653 $aManejo florestal
653 $aManejo forestal
653 $aModeflora
653 $aModelagem 3D
653 $aSistema de posicionamento global
653 $aSistemas de información geográfica
653 $aSistemas de posicionamiento global
653 $aTecnología geoespacial
653 $aTeledetección
700 1 $aBRAZ, E. M.
700 1 $aOLIVEIRA, M. V. N. d'.
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