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 | Acesso ao texto completo restrito à biblioteca da Embrapa Acre. Para informações adicionais entre em contato com cpafac.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
27/03/1997 |
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Data da última atualização: |
28/06/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VALENTIM, J. F.; RUELKE, O. C.; PRINE, G. M. |
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Afiliação: |
JUDSON FERREIRA VALENTIM, CPAF-AC; O. C. Ruelke, University of Florida; G. M. Prine, University of Florida. |
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Título: |
Yield and quality responses of tropical grasses, a legume and grass-legume associations as affected by fertilizer nitrogen. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Soil and Crop Science Society of Florida Proceedings, v. 45, p. 138-143, Oct. 1986. |
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Idioma: |
Inglês |
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Conteúdo: |
Dry matter (DM) yield and forage quality of tropical grasses, a legume, and grass-legume associations as affected by nitrogen (N) fertilizer levels were studied during 1984. The treatments consisted of 'Florigraze' rhizoma peanut (Arachis glabrata Benth.), 'Pensacola' bahiagrass (Paspalum notatum Flugge), Tifton 'Hybrid-81' bermudagrass [Cynodon dactylon (L.) Pers.] 'Survenola' digitgrass (DigitariaX umfoloziHall), and the association of the grasses with the legume at there levels of N (0, 150 and 300 kg ha-1 yr-1). Dry matter yields were determined, and ground forage samples were analyzed for crude protein (CP) and in vitroorganic matter digestibility (IVOMD). With no applied N, over 70% of the total forage harvested from the grass-legume associations consisted of Florigraze. When N was applied it resulted in a significant increase in DM yield of the grasses in pure stands and in association with Florigraze. Additional forage produced per kg of N was highest when 150 kg ha-1 yr-1 were applied. The highest DM yields were obtained from Survenola and Hybrid-81 in pure stands and in association with Florigraze over all N levels. A first N application in early spring increased DM yield of Florigraze. The association of the legume with the grasses, with no N, resulted in 100% to 300% increase in total DM yield as compared with pure stands. Crude protein concentration was significantly increased by both N fertilization and the association with Florigraze. Florigraze showed ability to compete successfully with weeds and the grasses even when N was supplied. Associations of Florigraze with Hybrid-81 or Survenola fertilized with N have a great potential for high DM yields of high quality forage for both grazing and hay production. MenosDry matter (DM) yield and forage quality of tropical grasses, a legume, and grass-legume associations as affected by nitrogen (N) fertilizer levels were studied during 1984. The treatments consisted of 'Florigraze' rhizoma peanut (Arachis glabrata Benth.), 'Pensacola' bahiagrass (Paspalum notatum Flugge), Tifton 'Hybrid-81' bermudagrass [Cynodon dactylon (L.) Pers.] 'Survenola' digitgrass (DigitariaX umfoloziHall), and the association of the grasses with the legume at there levels of N (0, 150 and 300 kg ha-1 yr-1). Dry matter yields were determined, and ground forage samples were analyzed for crude protein (CP) and in vitroorganic matter digestibility (IVOMD). With no applied N, over 70% of the total forage harvested from the grass-legume associations consisted of Florigraze. When N was applied it resulted in a significant increase in DM yield of the grasses in pure stands and in association with Florigraze. Additional forage produced per kg of N was highest when 150 kg ha-1 yr-1 were applied. The highest DM yields were obtained from Survenola and Hybrid-81 in pure stands and in association with Florigraze over all N levels. A first N application in early spring increased DM yield of Florigraze. The association of the legume with the grasses, with no N, resulted in 100% to 300% increase in total DM yield as compared with pure stands. Crude protein concentration was significantly increased by both N fertilization and the association with Florigraze. Florigraze showed ability... Mostrar Tudo |
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Palavras-Chave: |
Acumulación de materia seca; Amendoim silvestre; Arachis glabrata Benth; DigitariaX umfoloziHall; Fertilizantes de nitrógeno; Paspalum notatum Fuggle; Pastizales tropicales. |
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Thesagro: |
Capim pensacola; Características Agronômicas; Cynodon dactylon; Fertilizante nitrogenado; Grama bermuda; Gramínea forrageira; Leguminosa forrageira; Matéria seca; Pastagem; Planta forrageira. |
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Thesaurus Nal: |
Agronomic traits; Dry matter accumulation; Nitrogen fertilizers; Tropical grasslands. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
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Embrapa Acre (CPAF-AC) |
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| 1. |  | MAIA, A. P. de; OLIVEIRA, S. R. de M.; MOURA, D. J. de; SARUBBI, J.; VERCELLINO, R. do A.; MEDEIROS, B. B. L.; GRISKA, P. R. A decision-tree-based model for evaluating the thermal comfort of horses. Scientia Agricola, Piracicaba, v. 70, n. 6, p. 377-383, Nov./Dec. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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