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| Registros recuperados : 54 | |
| 8. |  | EIRA, P. A. DA; ALMEIDA, D. L. DE; ALVAHYDO, R. Movimento do ion nitrato, em solo da série Itaguaí, nas condições naturais de campo Pesquisa Agropecuária Brasileira, Rio de Janeiro, v. 3, p. 267-273, 1968. (Agronomia, 1). Título em inglês: Movement of nitrate in soil of the series "Itaguaí" under field conditions.
A partir do v. 3(1968) é constituída de duas partes: Série Agronomia e Série Veterinária, publicadas também separadamente.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 10. | | EIRA, P. A. da; PESSANHA, G. G.; BRITTO, D. P. P. de S.; CARBAJAL, A. R. Adubação mineral de fósforo e potássio na cultura do feijão e verificação do efeito residual. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 9, n. 10, p. 121-124, 1974. (Agronomia, 9). Título em inglês: Fertilization of black beans with phosphorus and potassium and its residual effect.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 13. | | EIRA, P. A. da; PESSANHA, G. G.; BRITTO, D. P. P. de S.; CARBAJÁL, A. R. Comparação de esquemas experimentais em experimentos de adubação mineral de nitrogênio e fósforo na cultura do feijão (Phaseolus vulgaris). Pesquisa Agropecuária Brasileira, Brasília, DF, v. 8, n. 7, p. 121-125, 1973. (Agronomia). Título em inglês: Comparison of experimental design in a field trial on fertilization of black beans (Phaseolus vulgaris) with mineral nitrogen and phosphorus.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 14. | | BRITTO, D. P. P. de S.; ARRUDA, N. B. de; NERY, C.; EIRA, P. A. da. Estudo dos fatoriais fracionados em ensaios de adubação mineral do amendoim. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 8, n. 7, p. 143-151, 1973. (Agronomia). Título em inglês: Factorial studies with fractional replication of mineral fertilization of the peanut.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 17. | | RODRIGUES, E. F. DA G.; DE POLLI, H.; EIRA, P. A. DA. Inoculação, calagem e adubação para mucuna-preta e feijão-de-porco num solo Podzólico Vermelho-Amarelo. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 29, n. 5, p. 807-814, maio 1994. Título em inglês: Inoculation, liming and fertilization of mucuna aterrima and Canavalia ensiformis in a Red-Yellow Podzolic soil.| Biblioteca(s): Embrapa Tabuleiros Costeiros; Embrapa Unidades Centrais. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
07/02/2018 |
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Data da última atualização: |
07/02/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CRESTANI, S.; MASCHERONI, J. D. C.; GEREMIA, E. V.; MONTEIRO, R. A. C.; MOURÃO, G. B.; SILVA, S. C. da. |
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Afiliação: |
STEBEN CRESTANI, UFFS; JORGE DANIEL CABALLERO MASCHERONI, Universidad Nacional de Asunción - UNA; ELIANA VERA GEREMIA, USP-ESALQ; ROBERTA APARECIDA C MONTEIRO, CPAMT; GERSON BARRETO MOURÃO, USP-ESALQ; SILA CARNEIRO DA SILVA, USP-ESALQ. |
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Título: |
Sward structural characteristics and herbage accumulation of Piatã palisade grass (Brachiaria brizantha) in a crop-livestock-forest integration area. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Crop and Pasture Science, v. 68, n. 9, p. 859-871, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to evaluate the effects of shading on structural characteristics and herbageaccumulation of palisade grass (Brachiaria brizantha cv. Piatã), in a crop?livestock?forest integration area. Three shaderegimes were evaluated: no shade (NS), moderate shade (MS, 338 trees ha?1), and intense shade (IS, 714 trees ha?1). Theeffects of shade regime on soil-water content and nitrogen nutrition index were also evaluated. Grazing management wasestablished based on sward light interception targets (95% LI pre-gazing). The MS and IS regimes were divided into twoshade strips (central and lateral) in order to describe the variation in light availability within the paddocks. Two methodsfor taking the reference readings of LI were tested in IS paddocks: LI reading inside (under the tree canopy) and outside(under full sunlight) the experimental area. Increased tree density reduced photosynthetically active radiation on lateral andcentral shade strips by 37% and 12% for MS, and 52% and 50% for IS, respectively. For NS, MS, IS (outside) and IS (inside),grazing intervals were 23, 26, 28 and 35 days, pre-grazing heights corresponded to 33, 35, 43 and 52 cm, and pre-grazingherbage mass to 5.37, 4.44, 2.96 and 3.23 t ha?1, respectively. Leaf percentage remained relatively stable across shaderegimes, but stem percentage was greater and dead material percentage was smaller for IS than for NS and MS. Soilwater content was lower near the trees, especially during the dry season. Relative to NS, herbage accumulation decreasedby 39% and 68% for MS and IS, respectively. Under natural shade, small variations in light availability affect swardstructure and herbage production. The use of the 95% LI target developed under full sunlight conditions is not suitable foruse under trees, emphasising the need to generate specific grazing-management targets for pastures cultivated under trees. MenosThe aim of this study was to evaluate the effects of shading on structural characteristics and herbageaccumulation of palisade grass (Brachiaria brizantha cv. Piatã), in a crop?livestock?forest integration area. Three shaderegimes were evaluated: no shade (NS), moderate shade (MS, 338 trees ha?1), and intense shade (IS, 714 trees ha?1). Theeffects of shade regime on soil-water content and nitrogen nutrition index were also evaluated. Grazing management wasestablished based on sward light interception targets (95% LI pre-gazing). The MS and IS regimes were divided into twoshade strips (central and lateral) in order to describe the variation in light availability within the paddocks. Two methodsfor taking the reference readings of LI were tested in IS paddocks: LI reading inside (under the tree canopy) and outside(under full sunlight) the experimental area. Increased tree density reduced photosynthetically active radiation on lateral andcentral shade strips by 37% and 12% for MS, and 52% and 50% for IS, respectively. For NS, MS, IS (outside) and IS (inside),grazing intervals were 23, 26, 28 and 35 days, pre-grazing heights corresponded to 33, 35, 43 and 52 cm, and pre-grazingherbage mass to 5.37, 4.44, 2.96 and 3.23 t ha?1, respectively. Leaf percentage remained relatively stable across shaderegimes, but stem percentage was greater and dead material percentage was smaller for IS than for NS and MS. Soilwater content was lower near the trees, especially during the dry season. R... Mostrar Tudo |
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Palavras-Chave: |
Field grown; Fluctuating light; Moisture stress. |
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Thesaurus NAL: |
Agroforestry; Forage yield; Tropical grasslands. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02712naa a2200253 a 4500
001 2087265
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008 2017 bl uuuu u00u1 u #d
100 1 $aCRESTANI, S.
245 $aSward structural characteristics and herbage accumulation of Piatã palisade grass (Brachiaria brizantha) in a crop-livestock-forest integration area.$h[electronic resource]
260 $c2017
520 $aThe aim of this study was to evaluate the effects of shading on structural characteristics and herbageaccumulation of palisade grass (Brachiaria brizantha cv. Piatã), in a crop?livestock?forest integration area. Three shaderegimes were evaluated: no shade (NS), moderate shade (MS, 338 trees ha?1), and intense shade (IS, 714 trees ha?1). Theeffects of shade regime on soil-water content and nitrogen nutrition index were also evaluated. Grazing management wasestablished based on sward light interception targets (95% LI pre-gazing). The MS and IS regimes were divided into twoshade strips (central and lateral) in order to describe the variation in light availability within the paddocks. Two methodsfor taking the reference readings of LI were tested in IS paddocks: LI reading inside (under the tree canopy) and outside(under full sunlight) the experimental area. Increased tree density reduced photosynthetically active radiation on lateral andcentral shade strips by 37% and 12% for MS, and 52% and 50% for IS, respectively. For NS, MS, IS (outside) and IS (inside),grazing intervals were 23, 26, 28 and 35 days, pre-grazing heights corresponded to 33, 35, 43 and 52 cm, and pre-grazingherbage mass to 5.37, 4.44, 2.96 and 3.23 t ha?1, respectively. Leaf percentage remained relatively stable across shaderegimes, but stem percentage was greater and dead material percentage was smaller for IS than for NS and MS. Soilwater content was lower near the trees, especially during the dry season. Relative to NS, herbage accumulation decreasedby 39% and 68% for MS and IS, respectively. Under natural shade, small variations in light availability affect swardstructure and herbage production. The use of the 95% LI target developed under full sunlight conditions is not suitable foruse under trees, emphasising the need to generate specific grazing-management targets for pastures cultivated under trees.
650 $aAgroforestry
650 $aForage yield
650 $aTropical grasslands
653 $aField grown
653 $aFluctuating light
653 $aMoisture stress
700 1 $aMASCHERONI, J. D. C.
700 1 $aGEREMIA, E. V.
700 1 $aMONTEIRO, R. A. C.
700 1 $aMOURÃO, G. B.
700 1 $aSILVA, S. C. da
773 $tCrop and Pasture Science$gv. 68, n. 9, p. 859-871, 2017.
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