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Registros recuperados: 7
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Association between parent materials and soil attributes along different geological environments in western Pará, Brazil Acta Amazonica
BARROS,Gerson Moreira; SANTOS,Jean Cheyson Barros dos; SOUZA JÚNIOR,Valdomiro Severino de; DELARMELINDA,Elaine Almeida; ARAÚJO FILHO,José Coelho de; CÂMARA,Elis Regina Guimarães.
ABSTRACT The expansion of the agricultural frontier into different geological environments in the west of the state of Pará, northern Brazil, makes it necessary to know the influence of the parent material on local soil attributes. This study aimed to evaluate the influence of different parent materials on five soil profiles along a lithosequence exposed by the BR-163 highway, which runs from north to south through western Pará. The soils were classified, morphologically described and their main horizons sampled for physical, mineralogical and chemical analyses, including the determination of micronutrients, forms of phosphorus and secondary forms of iron. Multivariate analysis was used to group the different soil-parent material associations. The results...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil mineralogy; Physical attributes; Chemical attributes; Multivariate analysis.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000300261
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Carbono orgânico e agregação de um Latossolo Vermelho com colheita mecanizada de cana-de-açúcar. Repositório Alice
SOUZA, H. A. de; MARCELO, A. V.; CENTURION, J. F..
RESUMO - O uso intensivo dos solos com o cultivo da cana-de-açúcar modifica significativamente as propriedades físicas do solo. Assim, objetivou-se avaliar o efeito do manejo da cana-de-açúcar com colheita mecanizada sobre a agregação de um Latossolo Vermelho distrófico típico de textura argilosa, situado em Guariba (SP). Foram selecionadas quatro situações (ciclos) com manejo de cana-de-açúcar colhida mecanicamente sem prévia queima: cana-planta e cana-soca de primeiro, segundo e terceiro cortes. Nas camadas de 0-0,10; 0,10-0,20 e 0,20-0,30 m de profundidade foram avaliados: diâmetro médio ponderado dos agregados (DMP), teores e estoques de carbono orgânico do solo. O manejo da cana-de-açúcar com colheita mecanizada influencia o DMP do solo, cujos valores...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Estoque de carbono; DMP; Atributos físicos; Saccharum officinarum; Cana-de-açúcar; Saccharum officinarum; WMD; Carbon stock; Physical attributes.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/927276
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Characterization of maturity and quality of Brazilian apirenic grapes in the São Francisco river Valley Ciênc. Tecnol. Aliment.
Mascarenhas,Robson de Jesus; Silva,Silvanda de Melo; Lima,Maria Auxiliadora Coêlho de; Mendonça,Rejane Maria Nunes; Holschuh,Heinz Johann.
The objective of this study was to characterize and correlate maturity and quality of the first varieties of Brazilian seedless grapes 'BRS Clara', 'BRS Linda', 'BRS Morena', and 'Advanced Selection 8' compared with the American variety 'Crimson Seedless' in compliance with the Brazilian Normative/2002 and export standards Advanced Selection 8' is dark reddish, has large clusters, and is a very large ellipsoid berry; 'BRS Morena' is black with medium sized clusters and large berry shaped as ellipsoid to globoid; 'BRS Linda' is light green and has large sized clusters; 'Crimson' is pink and has small clusters with berries varying from medium to large sizes and ellipsoid shaped; and 'BRS Clara' is green yellowish has medium sized clusters and small berry of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seedless grapes; Physical attributes; Physicochemical attributes; Quality standards; Vitis vinifera L.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000100004
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Mass modelling by dimension attributes for Mango (Mangifera indica cv. Zebdia) relevant to post-harvest and food plants engineering CIGR Journal
Mossad, Amr; El Helew, Waleed Kamel Mohammed; Elsheshetawy, Hemat E.; Farina, Vittorio.
Mass identification of mango fruits from their dimension attributes remains challenging.  This is because of the unregulated shapes of these fruits.  Therefore, this research aims at creating mathematical models that can demonstrate the relationship between the fruit’s mass and dimension attributes.  Hence, these models can be used in post-harvest engineering systems.  The researchers used 100 mango fruits (Mangifera indica cv. Zebdia) to determine the mathematical relationship between the fruits’ weight and dimension attributes.  The researcher measured and photographed the dimensions of these fruits and processed the image captured for each fruit using a computer program to find the fruit’s dimensions.  The results obtained led to the development of six...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioprocess technology; Fruit sorting; Image processing; Physical attributes.
Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3483
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Physical quality of an Oxisol cultivated with maize submited to cover crops in the pre-cropping period Rev. Bras. Ciênc. Solo
Pereira,Fabiana de Souza; Andrioli,Itamar; Beutler,Amauri Nelson; Almeida,Cinara Xavier de; Pereira,Faber de Souza.
The intensive use of land alters the distribution of the pore size which imparts consequences on the soil physical quality. The Least Limiting Water Range (LLWR) allows for the visualization of the effects of management systems upon either the improvement or the degradation of the soil physical quality. The objective of this study was to evaluate the physical quality of a Red Latosol (Oxisol) submited to cover crops in the period prior to the maize crop in a no-tillage and conventional tillage system, using porosity, soil bulk density and the LLWR as attributes. The treatments were: conventional tillage (CT) and a no-tillage system with the following cover crops: sunn hemp (Crotalaria juncea L.) (NS), pearl millet (Pennisetum americanum (L.) Leeke) (NP)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Management systems; Physical attributes; Least limiting water range.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000100021
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Potentialities and limitations of agricultural use in soils of semi-arid region of the state of Bahia Anais da ABC (AABC)
QUEIROZ,ALEXSANDRA F. DE; SALVIANO,ALESSANDRA M.; CUNHA,TONY J.F. DA; OLSZEVSKI,NELCI; SOUZA JÚNIOR,VALDOMIRO S. DE; OLIVEIRA NETO,MANOEL B. DE.
Abstract The objective of this study was to evaluate the potentialities and limitations of the agricultural use of representative classes of semi-arid regions of the state of Bahia, based on the pedological and evaluation of their soil characteristics. Five areas were selected where trenches were opened to collect samples for the analyses: Eutric Haplustept which presents vulnerability to physical and chemical degradation due to poor drainage with risks of erosion, waterlogging, salinization and compaction but having good natural fertility; Abrupt Kandiustalf with high vulnerability to physical degradation due to the presence of gravel and pebbles which may limit the development of deep rooting plants and mechanization but also with good natural fertility;...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sustainable; Soil quality; Physical attributes; Use limitations; Soil degradation.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703373
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Variabilidade espacial dos agregados e carbono orgânico total em Neossolo Litólico Eutrófico no município de Gilbués, PI. Repositório Alice
CORADO NETO, F. da C.; SAMPAIO, F. de M. T.; VELOSO, M. E. da C.; MATIAS, S. S. R.; ANDRADE, F. R.; LOBATO, M. G. R..
O constante uso do solo, geralmente provoca uma redução no teor de carbono orgânico do solo. Este atributo exerce importante função na agregação do solo. Objetivou-se avaliar a variabilidade espacial da agregação e do carbono orgânico total de um Neossolo Litólico Eutrófico em diferentes profundidades no município de Gilbués, PI.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Atributos físicos; Estabilidade de agregados; Geoestatística; Mapeamento; Physical attributes; Aggregate stability; Geostatistics; Mapping.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1015138
Registros recuperados: 7
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