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Registro Completo
Biblioteca(s):  Embrapa Agricultura Digital; Embrapa Café; Embrapa Cerrados.
Data corrente:  21/02/2017
Data da última atualização:  02/04/2018
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  VINECKY, F.; DAVRIEUX, F.; MERA, A. C.; ALVES, G. S. C.; LAVAGNINI, G.; LEROY, T.; BONNOT, F.; ROCHA, O. C.; BARTHOLO, G. F.; GUERRA, A. F.; RODRIGUES, G. C.; MARRACCINI, P.; ANDRADE, A. C.
Afiliação:  OMAR CRUZ ROCHA, CPAC; GABRIEL FERREIRA BARTHOLO, SAPC; ANTONIO FERNANDO GUERRA, SAPC; GUSTAVO COSTA RODRIGUES, CNPTIA; ALAN CARVALHO ANDRADE, SAPC.
Título:  Controlled irrigation and nitrogen, phosphorous and potassium fertilization affect the biochemical composition and quality of Arabica coffee beans.
Ano de publicação:  2017
Fonte/Imprenta:  Journal of Agricultural Science, v. 155, n. 6, p. 902-918, Aug. 2017.
DOI:  https://doi.org/10.1017/S0021859616000988
Idioma:  Inglês
Conteúdo:  Controlled irrigation during the dry period associated with adequate nitrogen (N), phosphorous (P) and potassium (K) fertilization led to the accumulation of biochemical compounds in coffee beans considered as positive precursors of beverage quality. Adult plants of coffee (Coffea arabica ‘Rubi’) were cultivated using different water regimes (WR) and fertilization conditions under the dry climate of the Brazilian Cerrado. Coffee-bean physical characteristics were evaluated as well as biochemical composition by near-infrared analysis. The K treatment mostly affected bean biochemistry, lipid and chlorogenic acid (CGA) contents, which increased with increasing amounts of fertilizer. Caffeine contents increased with higher amounts of N, but no significant effects of P treatment on bean biochemical composition were observed. Sucrose and total lipid contents always appeared higher in beans of non-irrigated plants than those beans from plants grown with continuous irrigation. In contrast, caffeine and CGA contents were higher in beans of irrigated as compared with non-irrigated plants. For the first time, the current results showed that controlled management of irrigation during the dry period associated with reasonable NPK fertilization led to the accumulation of biochemical compounds in coffee beans considered as positive precursors of beverage quality.
Palavras-Chave:  Controlled irrigation.
Thesagro:  Café; Coffea Arabica; Fertilidade do Solo; Fertilizante Fosfatado; Fertilizante Nitrogenado; Fertilizante Potássico; Sistema de irrigação.
Thesaurus Nal:  caffeine; Fertilizers; Irrigation.
Categoria do assunto:  --
F Plantas e Produtos de Origem Vegetal
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/162652/1/OA-35791.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/174835/1/Controlled-irrigation-and-nitrogen-phosphoruous-and-potassium.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Cerrados (CPAC)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPCa - SAPC1113 - 1UPCAP - DD
CNPTIA19629 - 1UPCAP - DD
CPAC35791 - 1UPCAP - PPS2229S2229
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Registro Completo

Biblioteca(s):  Embrapa Acre.
Data corrente:  17/04/2006
Data da última atualização:  28/07/2021
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  Nacional - A
Autoria:  ANDRADE, C. M. S. de; GARCIA, R.; VALENTIM, J. F.; PEREIRA, O. G.
Afiliação:  CARLOS MAURICIO SOARES DE ANDRADE, CPAF-AC; Rasmo Garcia, UFV; JUDSON FERREIRA VALENTIM, CPAF-AC; Odilon Gomes Pereira, UFV.
Título:  Grazing management strategies for massaigrass-forage peanut pastures. 2. Productivity, utilization and sward structure.
Ano de publicação:  2006
Fonte/Imprenta:  Revista Brasileira de Zootecnia, Viçosa, MG, v. 35, n. 2, p. 334-342, 2006.
ISSN:  1806-9290 (online)
DOI:  10.1590/S1516-35982006000200003.
Idioma:  Inglês
Conteúdo:  This study was carried out to evaluate the productivity, utilization and sward structure of a mixed massaigrass (Panicum maximum x P. infestum, cv. Massai) and forage peanut (Arachis pintoi Ac 01) pasture, intermittently stocked at three daily herbage allowance levels (9.0, 14.5 and 18.4% of live weight). In each grazing cycle, dry matter (DM) accumulation rates, defoliation intensity (%), grazing depth (%) and grazed horizon (cm) were evaluated. The structure of massaigrass tussocks was characterized in both dry and rainy seasons by measuring its pre-grazing morphological composition and postgrazing height and density (tussocks/m). Pastures submitted to higher herbage allowance (HA) levels showed higher productivity, but were less efficiently utilized. On average, over the experimental period, DM accumulation rates increased linearly from 56.8 to 81.3 kg/ha/day as HA levels increased from 9.0 to 18.4% of live weight. However, defoliation intensity and grazing depth declined linearly with increasing HA levels. During the dry season, pre-grazing morphological composition of massaigrass was characterized by 41% of green leaf blades, 10% of pseudostems and 49% of dead material, irrespective of HA levels. In the rainy season, however, it showed higher percentage of green leaf blades and lower percentage of pseudostems when submitted to lower HA levels, although there were not differences in relation to percentage of dead material. The structure of massaigrass tussocks tended to ... Mostrar Tudo
Palavras-Chave:  Acumulación de materia seca; Amendoim forrageiro; Capim massai; Defoliación; Forage peanut; Grazing depht; Híbridos; Leguminosas forrajeras; Mixed massaigrass; Morfología de las plantas; Panicum maximum x P infestum cv Massai; Pastoreo mixto; Profundidad de pastoreo; Profundidade do pastejo.
Thesagro:  Características Agronômicas; Desfolha; Híbrido; Leguminosa forrageira; Matéria seca; Morfologia vegetal; Pastagem consorciada; Pastejo.
Thesaurus NAL:  Agronomic traits; Arachis pintoi; Defoliation; Dry matter accumulation; Forage legumes; Hybrids; Mixed grazing; Plant morphology.
Categoria do assunto:  A Sistemas de Cultivo
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/112581/1/12926.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Acre (CPAF-AC)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CPAF-AC12926 - 2UPCAP - DD
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