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Registros recuperados: 34
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Adubacao de mudas de mangabeira em sacos plasticos com substrato de areia grossa. Infoteca-e
PEREIRA, E. B. C.; PEREIRA, A. V.; ANJOS, J. de R. N dos; GOMES, A. C..
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Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Adubacao; Mangaba; Hancornia speciosa; Fruta; Cerrado; Areia; Adubo organico; Esterco; Fertilizer application; Organic fertilizers; Farmyard manure; Sand; Indigenous organisms.
URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/565841
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Avaliacao da composicao de substrato para mudas de mangabeira em tubetes. Infoteca-e
PEREIRA, E. B. C.; PEREIRA, A. V.; GOMES, A. C..
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Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Adubacao; Mangaba; Hancornia speciosa; Fruta Cerrado; Argila; Areia; Esterco; Inoculacao; Fungo; Micorriza; Fertilizer application; Sand; Indigenous organisms; Clay; Farmyard manure; Fungi; Mycorrhizae.
URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/566651
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Benchmarking analogue models of brittle thrust wedges ArchiMer
Schreurs, Guido; Buiter, Susanne J. H.; Boutelier, Jennifer; Burberry, Caroline; Callot, Jean-paul; Cavozzi, Cristian; Cerca, Mariano; Chen, Jian-hong; Cristallini, Ernesto; Cruden, Alexander R.; Cruz, Leonardo; Daniel, Jean-marc; Da Poian, Gabriela; Garcia, Victor H.; Gomes, Caroline J. S.; Grall, Celine; Guillot, Yannick; Guzman, Cecilia; Hidayah, Triyani Nur; Hilley, George; Klinkmuller, Matthias; Koyi, Hemin A.; Lu, Chia-yu; Maillot, Bertrand; Meriaux, Catherine; Nilfouroushan, Faramarz; Pan, Chang-chih; Pillot, Daniel; Portillo, Rodrigo; Rosenau, Matthias; Schellart, Wouter P.; Schlische, Roy W.; Take, Andy; Vendeville, Bruno; Vergnaud, Marine; Vettori, Matteo; Wang, Shih-hsien; Withjack, Martha O.; Yagupsky, Daniel; Yamada, Yasuhiro.
We performed a quantitative comparison of brittle thrust wedge experiments to evaluate the variability among analogue models and to appraise the reproducibility and limits of model interpretation. Fifteen analogue modeling laboratories participated in this benchmark initiative. Each laboratory received a shipment of the same type of quartz and corundum sand and all laboratories adhered to a stringent model building protocol and used the same type of foil to cover base and sidewalls of the sandbox. Sieve structure, sifting height, filling rate, and details on off-scraping of excess sand followed prescribed procedures. Our analogue benchmark shows that even for simple plane-strain experiments with prescribed stringent model construction techniques,...
Tipo: Text Palavras-chave: Thrust wedges; Brittle wedges; Shear zones; Analogue modeling; Benchmarking; Critical taper; Sand; Friction; Cohesion.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00359/47011/51118.pdf
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Coffee seedlings in different substrates and protected environments REA
Silva,Arthur P. da; Costa,Edilson; Espírito Santo,Tiago L. do; Silva,Luan E. da; Martins,Roberta F..
The production of high-quality seedlings is a critical factor for successful implementation of a determined crop in the field. In order to evaluate the production of coffee seedlings, experiments were conducted with different substrates and in different protected environments. Treatments consisted of evaluation of the following substrates: 50% cattle manure + 50% commercial substrate, 50% cattle manure + 50% vermiculite, 50% commercial substrate + 50% vermiculite, 1/3 cattle manure + 1/3 commercial substrate + 1/3 vermiculite, 50% cattle manure + 50% sand, 1/3 sand + 1/3 cattle manure + 1/3 commercial substrate and 50% commercial substrate + 50% sand. These substrates were tested in different protected environments: agricultural greenhouse, mesh screen...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coffee arabica; Cattle manure; Vermiculite; Commercial substrate; Sand.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000400001
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Comparison of greenhouse and field screening techniques for Botrytis gray mold resistance Open Agri
Pande, S..
Palavras-chave: Chickpeas; Fungi; Disease resistance; Replication; Clay minerals; Germplasm; Breeds (animals); Sand; Electrophoresis; Humus.
Ano: 2006 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3186
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Dynamics of sand and mud mixtures: a multiprocess-based modelling strategy ArchiMer
Le Hir, Pierre; Cayocca, Florence; Waeles, Benoit.
Mixed sediments are constituted of cohesive and non-cohesive materials with distinct behaviours that numerical models traditionally manage separately. This paper first introduces a rapid state of the Art in sediment transport modelling in order to point out the specific requirements for process-based models applied to mixed sediments. Based on a preliminary study by Waeles et al. (2007), which showed the validity of the advection approach to compute fine sand transport, a complete modelling strategy is described: it is applied to the suspended transport of sand and mud mixtures, and accounts for consolidation of mixed sediments. Special care is paid to the realistic representation of the structure and density of sand and mud mixtures, and to the...
Tipo: Text Palavras-chave: Sediment transport modelling; Mixed sediment; Sand; Mud; Suspension; Consolidation.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00028/13952/12567.pdf
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Dynamique sédimentaire et répartition granulométrique des sédiments de surface dans la frange littorale Ras Taguermess-Ras Marmour (golfe de Gabès) OceanDocs
Brahim., M.; Abdelfattah., A..
Les analyses granulométriques des sédiments superficiels de la zone côtière située entre Ras Taguermess et Ras Marmours montrent que les petits fonds (-2 à -10 m) sont couverts par des sables fins aux sables grossiers (la moyenne est entre 0,39 et 3,34 ), généralement mal à très mal classés. Cependant, le haut de plage situé entre Ras Taguermess et Ras Marmour est couvert essentiellement par des sables fins et des sables moyens (la moyenne est entre 1,082 et 2,823 ). La répartition spatiale des sables ne montre pas un grano-classement décroissant ou croissant des sédiments de la côte vers le large. Cette distribution est due à l‘existence d’une énergie importante où la houle joue le rôle essentiel sur leur répartition. L’étude granulométrique montre aussi...
Tipo: Journal Contribution Palavras-chave: Beaches; Coastal zone; Grading; Grain size; Longshore sediment transport; Sand; Sediment analysis; Sediment texture; Sediments; Swell.
Ano: 2009 URL: http://hdl.handle.net/1834/4456
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Efeito do substrato e da adubacao no crescimento e na sobrevivencia de mudas de mangabeira em tubetes. Infoteca-e
PEREIRA, E. B. C.; PEREIRA, A. V.; PACHECO, A. R..
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Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Adubacao; Mangaba; Hancornia speciosa; Fruta; Cerrado; Areia; Substrato de cultura; Fertilizer application; Indigenous organisms; Sand; Culture media.
URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/562985
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EFFECT OF LITTER SUBSTRATES ON THE PERFORMANCE, CARCASS TRAITS, AND ENVIRONMENTAL COMFORT OF RED-WINGED TINAMOU (RHYNCHOTUS RUFESCENS) Rev. Bras. Ciênc. Avic.
Nunes,JC; Carvalho,MM; Sugui,JK; Queiroz,FA; Santana,AE; Hata,ME; Aiura,ALO; Oliveira,JA; Queiroz,SA.
ABSTRACT The study aimed at evaluating the effect of litter substrates on the performance, carcass traits, and environmental comfort of red-winged tinamou (Rhynchotus rufescens). In this experiment, 160 birds, with 100 and 300 days of age, were housed into 20 pens, and distributed according to a completely randomized experimental design into five treatments with four replicates of eight birds each. Treatments consisted of five litter substrates: wood shavings, rice husks, peanut hulls, grass hay, or sand. Feed intake; weight gain; breast, hock, and footpad lesions; back feathering; total meat production; carcass and parts yield; and leukocyte counts were evaluated. Litter substrates were analyzed for dry matter content, standard microbial count, ammonia...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Grass hay; Leukocyte counts; Litter temperature; Radiant heat load; Sand.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000500041
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Effects of nickel fertilization on soybean growth in tropical soils Bragantia
Levy,Camila de Carvalho Braga; Mellis,Estêvão Vicari; Murrer,Marina Krey; Inglés,Carlos Repiso; Daynes,Cathal N.; Cavalli,Edilson; Chiba,Marcio Koiti.
ABSTRACT Although nickel (Ni) is recognized as plant nutrient since the turn of the 21st century, uncertainty remains about its optimum application rates and forms. This paper focuses on Ni application in soils, relating to its effect as a plant micronutrient. Specifically, the effect of Ni on the activity of urease in soybean plants is examined. The effects of applying four Ni rates in two different soil types were tested. A full factorial 2 × 4 blocked design experiment was established under controlled conditions. Ni rates (0, 0.25, 0.5 and1.0 mg of Ni·kg–1 of soil) were applied in two soils with contrasting clay contents. The addition of Ni increased the urease activity in soybean plants but was affected by soil textural differences. The highest urease...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Urease; Clay; Sand; Oxisol; Glycine max.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000300432
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Estudio de los sedimentos del sector donde convergen los ríos Daule y Babahoyo, y las posibles causas que están formando un nuevo islote en ese sector OceanDocs
Soledispa, B..
Los objetivos de este artículo son: - Caracterizar el área de estudio en base a los tipos de sedimentos que predominan en el sector, a su distribución aproximada en el mismo, así como a su posible proveniencia. - Determinar la carga de sedimentos en suspensión que transportan los ríos. - Determinar las posibles causas que están originando la formación de una nueva isla en la desembocadura del Río Daule.
Tipo: Journal Contribution Palavras-chave: Sediments; Granulometry; Sediment transport; Silt; Rivers; Sand; Sediment analysis; Rivers; Sand; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_6779.
Ano: 2002 URL: http://hdl.handle.net/1834/2268
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Evaluación de la Cuenca de Mono II para su empleo en el vertimiento de arena en la playa de Varadero, 2008 OceanDocs
Rivas Rodríguez, L.; Caballero Camejo, V.; Izquierdo Álvarez, M..
Actualmente la playa de Varadero, principal polo turístico de Cuba, no presenta los niveles de deterioro que mostraba en el año 1998. Sin embargo, existen ciertos sectores, ubicados entre Punta Chapelín y el canal de Paso Malo, con una longitud de 7 000 m., donde se observan evidencias de una erosión acelerada. Es por ello que se propone una nueva campaña de vertimientos que brinde especial atención a estos sectores. Luego de ser identificada la Cuenca de Mono II, como la zona de préstamo, y comprobar que reunía condiciones óptimas para su utilización, se hacia necesario demostrar la compatibilidad de ese sedimento con el que existe actualmente en los sectores erosionados, siendo este el principal objetivo del presente trabajo. Para ello se colectaron 56...
Tipo: Journal Contribution Palavras-chave: Sand; Sand; Http://aims.fao.org/aos/agrovoc/c_6779.
Ano: 2009 URL: http://hdl.handle.net/1834/3420
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Evolución texturo-composicional de la arena de playas del Este de la Habana, Cuba. OceanDocs
Guerra García, R. F.; Sosa Fernández, M.; Rivas Rodríguez., L..
Los resultados que se muestran se obtuvieron a partir de un Programa de monitoreo de las variaciones morfológicas y sedimentológicas del perfil playa-duna del sector litoral comprendido entre el Mégano y la desembocadura del río Guanabo, al noreste de la ciudad de la Habana. El objetivo del presente trabajo fue conocer el comportamiento espacio-temporal del tamaño del grano, grado de selección de las partículas y su composición genética dando respuestas al desarrollo sedimentario de la playa. Se colectaron un total de 207 muestras de arena de la anteplaya en 16 perfiles de playa durante un monitoreo ejecutado desde septiembre del 2007 hasta septiembre del 2008, comparando además los resultados de su interpretación sedimentológica con los obtenidos en la...
Tipo: Journal Contribution Palavras-chave: Sand; Sand; Http://aims.fao.org/aos/agrovoc/c_6779.
Ano: 2009 URL: http://hdl.handle.net/1834/3422
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Foraminíferos bentónicos de la Bahía de Santa Elena - Ecuador, durante 2006-2007 OceanDocs
Gualancañay, E..
Se identificaron doce especies de foraminíferos bentónicos en la bahía de Santa Elena, Ecuador, correspondientes a mayo de 2006 y octubre de 2007. Las especies halladas son típicas de aguas poco profundas entre 4 y 20 metros de profundidad sobre sedimento arenoso y mezcla de arena y limo y son las siguientes: Cibicides aknerianus, Cibicides bertheloti f. boueana, Elphidium articulatum, Nonion pizarrense, Quinqueloculina agglutinans, Quinqueloculina granulosa, Quinqueloculina lamarckiana, Rotalia beccarii, Saccammina calcarea, Textulariella foliacea, Textularia secasensis y Trochammina advena.
Tipo: Journal Contribution Palavras-chave: Foraminifera; Shallow water; Sand; Mud; Sand; Mud; Http://aims.fao.org/aos/agrovoc/c_6779; Http://aims.fao.org/aos/agrovoc/c_4973.
Ano: 2009 URL: http://hdl.handle.net/1834/3359
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Formulating Fine to Medium Sand Erosion for Suspended Sediment Transport Models ArchiMer
Dufois, Francois; Le Hir, Pierre.
The capacity of an advection/diffusion model to predict sand transport under varying wave and current conditions is evaluated. The horizontal sand transport rate is computed by vertical integration of the suspended sediment flux. A correction procedure for the near-bed concentration is proposed so that model results are independent of the vertical resolution. The method can thus be implemented in regional models with operational applications. Simulating equilibrium sand transport rates, when erosion and deposition are balanced, requires a new empirical erosion law that involves the non-dimensional excess shear stress and a parameter that depends on the size of the sand grain. Comparison with several datasets and sediment transport formulae demonstrated the...
Tipo: Text Palavras-chave: Sand; 1DV model; Erosion rate; Suspended sediment transport.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00276/38763/37304.pdf
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Glass Microbeads in Analog Models of Thrust Wedges Anais da ABC (AABC)
D'ANGELO,TAYNARA; GOMES,CAROLINE J.S..
ABSTRACT Glass microbeads are frequently used in analog physical modeling to simulate weak detachment zones but have been neglected in models of thrust wedges. Microbeads differ from quartz sand in grain shape and in low angle of internal friction. In this study, we compared the structural characteristics of microbeads and sand wedges. To obtain a better picture of their mechanical behavior, we determined the physical and frictional properties of microbeads using polarizing and scanning electron microscopy and ring-shear tests, respectively. We built shortening experiments with different basal frictions and measured the thickness, slope and length of the wedges and also the fault spacings. All the microbeads experiments revealed wedge geometries that were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Compressional deformation models; Sand; Microbeads; Physical and frictional characterizations..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100073
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Growth of lulo (Solanum quitoense Lam.) plants affected by salinity and substrate Rev. Bras. Frutic.
Flórez,Sandra Liliana; Lasprilla,Diego Miranda; Chaves,Bernardo; Fischer,Gerhard; Magnitskiy,Stsnislav.
The effects of 0, 30 and 60 mM NaCl and substrates (red peat, sand or 3:1:1 [w/w] mixture of peat, sand, or soil) on vegetative growth of lulo, an Andean fruit species, during 12 weeks were studied. The experiment was carried out by using 2000 cm³ of polypropylene plastic pots under greenhouse conditions. Plant height, number of leaves and nodes, leaf area, total plant dry matter (DM), and shoot/root ratio were evaluated. With the increase of salt concentration, the plant height, the number of leaves and nodes, the leaf areas and plant dry mass DM decreased, whereas shoot/root ratio increased. Sand grown lulo plants were most affected by salinity and presented total mortality at 60 mM NaCl. On the other hand, plants held either in peat or in substrate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lulo; Naranjilla; Salinity; NaCl; Plant height; Leaf area; Dry matter; Peat; Sand.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452008000200023
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High frequency of Ascaris lumbricoides in public playgrounds in central Brazil. Repositório Alice
MARINHO, R. F.; SÁ, L. C. F. E.; CASTRO, N.; GURGEL-GONÇALVES, R.; MALDONADE, I. R.; MACHADO, E. R..
This study analyzed the occurrence of intestinal parasites in playgrounds in the Federal District of Brazil(DF) in 2015 2016 and were processed using he Willis and Hoffman methods.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Parasites; Microbial contamination; Sand; Ascaris lumbricoides.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1078366
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Hymenaea courbaril SEEDLINGS IN PROTECTED ENVIRONMENTS AND SUBSTRATES REA
Sanches,Cássio F.; Costa,Edilson; Costa,Geany G. S. da; Binotti,Flávio F. da S.; Cardoso,Eliana D..
ABSTRACT The Brazilian copal is a tree fruit species that can be used for various purposes. The study evaluated protected environments and substrates in forming Brazilian copal seedlings (Hymenaea courbaril), at the State University of Mato Grosso do Sul, Cassilândia-MS, from January to March, 2014. Two greenhouses were used: (A1) agricultural greenhouse covered with aluminized thermal reflector screen of 50% shading and (A2) agricultural greenhouse covered with black screen of 50% shading. Inside the greenhouses, substrates derived from mixtures of cattle manure, soil, medium vermiculite, super fine vermiculite and washed fine sand were tested. For each cultivation environment, a completely randomized experimental design was used. The environments were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hymenaea courbaril; Solar radiation; Reflective covered; Cattle manure; Vermiculite; Humus; Sand.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000100024
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Identification of pathogens and virulence profile of Rhodococcus equi and Escherichia coli strains obtained from sand of parks BJM
Fernandes,M.C.; Takai,S.; Leite,D.S.; Pinto,J.P.A.N.; Brandão,P.E.; Santarém,V.A.; Listoni,F.J.P.; Silva,A.V. Da; Ribeiro,M.G..
The identification of pathogens of viral (Rotavirus, Coronavirus), parasitic (Toxocara spp.) and bacterial (Escherichia coli, Salmonella spp., Rhodococcus equi) origin shed in feces, and the virulence profile of R. equi and E. coli isolates were investigated in 200 samples of sand obtained from 40 parks, located in central region of state of Sao Paulo, Brazil, using different diagnostic methods. From 200 samples analyzed, 23 (11.5%) strains of R. equi were isolated. None of the R. equi isolates showed a virulent (vapA gene) or intermediately virulent (vapB gene) profiles. Sixty-three (31.5%) strains of E. coli were identified. The following genes encoding virulence factors were identified in E. coli: eae, bfp, saa, iucD, papGI, sfa and hly. Phylogenetic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enteric pathogens; Virulence; Sand; Feces; Parks; E. coli; R. equi.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200025
Registros recuperados: 34
Primeira ... 12 ... Última
 

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