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Registros recuperados: 32
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Ação do enxofre em chuva ácida simulada sobre parâmetros morfofisiológicos de Phaseolus vulgaris L. (Fabaceae) - doi: 10.4025/actasciagron.v32i3.4273 Agronomy
Dias, Bruna Borba; Universidade Federal de Santa Catarina; Leite, Maysa de Lima; Universidade Estadual de Ponta Grossa, Paraná; Farago, Paulo Vitor; Universidade Estadual de Ponta Grossa, Paraná; Oliveira, André Vicente de; Universidade Estadual de Ponta Grossa, Paraná; Beruski, Gustavo Castilho; Universidade Estadual de Ponta Grossa, Paraná.
O presente trabalho teve o objetivo de analisar os efeitos do enxofre e da chuva ácida simulada sobre a estrutura foliar do feijoeiro (Phaseolus vulgaris L), nos aspectos morfoanatômicos, teores de clorofila a, b, total e feofitina. As plantas-controle sofreram simulações de chuva com pH 6,0 e as plantas-teste sofreram simulação de chuva ácida com pH 3,0. As concentrações de clorofila a, b e total diminuíram no estádio de floração (R6). Já, no estádio R7, onde surgem as primeiras vagens, os teores aumentaram, indicando possível resistência e/ou adaptação dos espécimes às simulações ácidas. O tratamento ácido afetou a concentração de clorofila que foi degradada por processos oxidativos sem a sua conversão em feofitina. Também se observou diminuição na...
Palavras-chave: 5.00.00.00-4; 5.01.03.06-7; Phaseolus vulgaris; Chuva ácida; Enxofre; Clorofila; Anexos epidérmicos Ciências Agrárias e Fisiologia de Plantas Cultivadas Phaseolus vulgaris; Acid rain; Sulfur; Chlorophyll; Epidermal annexes.
Ano: 2010 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4273
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Adubação de enxofre para a cultura do milho sob plantio convencional e direto em solo de Cerrado. Infoteca-e
MIRANDA, L. N. de; MIRANDA, J. C. C. de.
2008
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Cerrado; Milho; Zea mays; Adubação; Enxofre; Corn; Fertilizer application; Sulfur.
Ano: 2008 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/663163
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Ammonium sulphate on maize crops under no tillage Bragantia
Silva,Maria Anita Gonçalves da; Mannigel,Anny Rosi; Muniz,Antonio Saraiva; Porto,Simone Maria Altoé; Marchetti,Marlene Estevão; Nolla,Antonio; Bertani,Rosemary Marques de Almeida.
The objectives of this work were to evaluate the management of N and S (as ammonium sulphate) fertilization under no-tillage system on the components of maize productivity and on N and S accumulation in the crop, as well as to evaluate the minimum value of the Nitrogen Sufficiency Index (NSI 0.95) as an indicator for side dressing requirements. The experiment had a completely randomized block design with six treatments and four replications carried out in Red Latosol dystrophic soil (Hapludox), in Campo Mourão, Paraná State, where the following treatments in summer growth maize were applied: T1- 120 kg ha-1 N in seeding; T2- 120 kg ha-1 N in side dressing; T3- 40 kg ha-1 N in seeding and 80 kg ha-1 N in side dressing; T4- 30 kg ha-1 N in seeding and 90 kg...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Triticum aestivum; Fertilizer management; Nitrogen; Sulfur.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052012000100014
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Between Estimates of the Environmental Kuznets Curve AgEcon
Stern, David I..
Acknowledgements: Elbert Dijkgraaf for providing the data used in their paper.
Tipo: Report Palavras-chave: Carbon; Sulfur; Environmental Kuznets curve; Between estimator; Environmental Economics and Policy; Research Methods/ Statistical Methods; C23; Q53; Q56.
Ano: 2009 URL: http://purl.umn.edu/94883
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Distribution et role des composes soufres reduits volatils sur la speciation metallique ArchiMer
Cozic, Amandine.
A sensitive, precise and rapid analytical method was elaborated to measure simultaneously 5 volatile reduced sulfur compounds (VRSC) ; hydrogen sulfide (H2S), carbonyl sulfide (OCS), methane thiol (MeSH), dimethyl sulfide (DMS), dimethyl disulfide (DMDS). The study of VRSC in the Bay of Quiberon highlights seasonal and interannual variations of concentrations in epibenthic zone. H2S analyzed near the sediment water interface (anoxic microzones), is more elevated in summer. The OCS distribution is consistent with a predominant photodegradation in winter and a sedimentary source in summer. The variations of MeSH, DMS and DMDS are correlated with the Dinophyceae abundance. In the Seine estuary, the absence of volatile H2S in the up estuary is explained by the...
Tipo: Text Palavras-chave: Phytoplankton; Metal speciation; DMS; Sulfur; Phytoplancton; Spéciation métallique; DMS; Soufre.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-2687.pdf
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Effect of organic matter and moisture regime on the availability and uptake of sulfur and zinc in rainfed lowland rice International Rice Research Institute
Ayingayure, Vitus A..
157 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Organic matter; Soil water regimes; Sulfur; Zinc; Nutrient uptake; Rice straw; Dryland farming; Rainfed lowland rice.
Ano: 1991 URL: http://hdl.handle.net/123456789/957
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Effect of sulfur nutrition on the growth and photosynthesis of rice International Rice Research Institute
Resurreccion, Adoracion P..
64 leaves : ill. (some col.) Thesis (Ph.D.) -- Tohoku University
Tipo: Thesis Palavras-chave: Rice; Sulfur; Plant nutrition; Plant growth; Photosynthesis.
Ano: 2001 URL: http://hdl.handle.net/123456789/463
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Effects of sulfur fertilization on wheat production and industrial quality (Triticum aestivum) Ciencia e Investigación Agraria
Herrera,Luis E; Pinilla,Hernán; Sanhueza,Héctor.
Two wheat fertilization experiments were conducted during the 2005-2006 and 2007-2008 seasons using a medial, mesic, seric, Typic Placandept soil to determine the effect of sulfur on the yield, percentage of protein, gluten content, and sedimentation volume of the grain and the nutrient availability in the soil. During the 2005-06 season, the fertilization treatments consisted of a base fertilization plus various sulfur treatments: 0 kg S ha-1 (T1); 27 kg S ha-1 (T2); 54 kg S ha-1 (T3) or 108 kg S ha-1 (T4). During the 2007-08 season, the fertilization treatments were 0 kg S ha-1 (T1), 9 kg S ha-1 (T2), 18 kg S ha-1 and 36 kg S ha-1 (T4). The results showed no differences (P<0.05) in the grain yield for any of the treatments evaluated. Furthermore, no...
Tipo: Journal article Palavras-chave: Triticum aestivum; Wheat quality; Sulfur; Gluten.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000100016
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Evaluation of sulfur source and dose on the nutritional state and production of piatã forage. Repositório Alice
SANTOS, L. F. de M.; LAPAZ, A. de M.; TOMAZ, R. S.; LIRA, M. V. da S.; MOREIRA, A.; REIS, A. R. dos; HEINRICHS, R..
bitstream/item/199681/1/aSantos.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Fertilizante; Nutrição Vegetal; Pastagem; Capim Urochloa; Enxofre; Fertilizers; Plant nutrition; Pastures; Sulfur.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1110711
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Foliar macronutrient levels and production of maize (Zea mays L.) after gypsum application in an Oxisol Sci. Agrar.Paran. / SAP
Minato, Evandro Antonio; Esper Neto, Michel; Sakurada, Rodrigo Lima; Inoue, Tadeu Takeyoshi; Batista, Marcelo Augusto.
The application of gypsum to the soil provides a favorable environment for the development of the root system, supplying the subsurface layers with elements such as calcium and sulfur and reduce the toxic aluminum activity. The objective of this study was to evaluate the influence of gypsum doses application on the maize (Zea mays L.) yield and the nutrients levels in the leaves. The study was conducted in the municipality of Terra Roxa - PR in an Oxisol using experimental design of randomized blocks with four replications. The treatment were composed of different doses of gypsum (0, 3.0, 6.0 and 9.0 t ha-1) applied after sowing corn. When the plants were in the R1 stage leaves were collected and analyzed the levels of N, P, K, Ca, Mg and S. After...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calcium; Sulfur; Plant nutrition; Yield..
Ano: 2017 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14208
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Geochemical modeling of gold precipitation conditions in the Bloco do Butiá Mine, Lavras do Sul/Brazil Anais da ABC (AABC)
Mexias,André S.; Berger,Gilles; Gomes,Márcia E.B.; Formoso,Milton L.L.; Dani,Norberto; Frantz,José C.; Bongiolo,Everton M..
A geochemical modeling of gold deposition was performed using the EQ3/EQ6 software package using conditions inferred from geological, petrographic, geochemical and fluid inclusion data from the Bloco do Butiá gold mine, Lavras do Sul, RS. Gold in the mine occurs only in the pyrite structure (invisible gold). The pyrite occurs associated with white mica (phengite) in the zone of phyllic alteration. The process of gold deposition showed to be related to temperature and pH decrease. The pH decrease was fundamental to gold deposition by destabilization of sulfur species [Au(HS)2- , HAu(HS)2(0) and Au(HS)0] dissolved in the aqueous solution, being Au(HS)0 the main gold transporting complex. The addition of KCl is hard to accept as cause of gold precipitation...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Geochemical modeling; Gold; Pyrite; Sulfur; Fluid-rock interaction.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652005000400010
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Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea Rev. Bras. Ciênc. Solo
Faria,Letícia de Abreu; Nascimento,Carlos Antonio Costa do; Ventura,Barbara Paquier; Florim,Gabriela Perissinotto; Luz,Pedro Henrique de Cerqueira; Vitti,Godofredo Cesar.
Hygroscopic fertilizers tend to absorb moisture from the air and may have undesirable characteristics such as moistness, clumping and lower fluidity, hampering the application. The increasing use of urea is due to its numerous advantages, although this nitrogen (N) source is highly susceptible to volatilization losses, particularly when applied to the soil surface of management systems with conservation of crop residues. The volatilization losses can be minimized by slow or controlled-release fertilizers, with controlled water solubility of the urea-coating materials; and by stabilized fertilizers, which prolong the period during which N remains in the amide or ammonia forms by urease inhibitors. This study evaluated the hygroscopicity of and ammonia...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Boric acid; Sulfur; Crop residues; Copper sulphate.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300026
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Indexes of Sulfur Deficiency in Alfalfa. I. Extractable Soil S0}4{-S NWISRL
Westermann, D.T..
Tipo: Article Palavras-chave: Alfalfa; Sulfur; Mass Import - autoclassified (may be erroneous).
Ano: 1974 URL: http://eprints.nwisrl.ars.usda.gov/262/1/290.pdf
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Leaching of Added Selenium from Alkaline Soils as Influenced by Sulfate NWISRL
Brown, M.J.; Carter, D.L..
Tipo: Article Palavras-chave: Selenium; Sulfur; Mass Import - autoclassified (may be erroneous).
Ano: 1969 URL: http://eprints.nwisrl.ars.usda.gov/79/1/142.pdf
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Limitações de fertilidade do solo na recuperação de pastagem degradada de capim colonião (Panicum maximum Jacq.) em Paragominas, na Amazônia Oriental. Infoteca-e
DIAS FILHO, M. B.; SERRÃO, E. A. S..
1987
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Leguminosa; Fertilidade; Producao; Pastagem degradada; Capim coloniao; Materia seca; Fosforo; Nitrogenio; Enxofre; Calagem; Adubacao; Solo; Panicum maximum; Paragominas; Pará; Amazonia; Brasil; Leguminous; Fertility; Production; Degraded pasture; Dry matter; Phosphorus; Nitrogen; Sulfur; Liming; Fertilization; Soil.
Ano: 1987 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/383651
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Metabolism of cyanobacteria in anaerobic marine sediments. ArchiMer
Stal, L; Krumbein, W.
Two cyanobacteria isolated from marine microbial mats metabolized endogenous carbon reserves anaerobically in the dark. Microcoleus chthonoplastes reduced elemental sulfur to sulfide and Oscillatoria sp. additionally produced lactate in the absence of elemental sulfur. Under nitrogen fixing conditions, however, no sulfur reduction occurs. Lactate fermentation appeared to be the mechanism of anaerobic carbon degradation under these conditions. With a nitrogenase-reducible substrate, e.g. acetylene, added, lactate fermentation as well as sulfur reduction stops in cultures of Oscillatoria containing nitrogenase. In this case only ethylene production was observed. These cyanobacteria seem to possess the capability to carry out anaerobic dark metabolism...
Tipo: Text Palavras-chave: Oscillatoria; Microcoleus chthonoplastes; Cyanophyta; Metabolism; Chemical cycles; Algae; Anoxic sediments; Anaerobic respiration; Algal mats; Biogeochemistry; Fermentation; Sulfur; Nitrogen fixation; Nitrogen cycle.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-974.pdf
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Multivariate analysis of Brassica oleracea L. var. costata phenolics: influence of fertilization practices. IPB - Escola Superior Agrária
Sousa, C.; Pereira, D.M.; Pereira, J.A.; Rodrigues, M.A.; Bento, Albino; Dopico-García, S.; Lopes, Graciliana; Valentão, P.; Seabra, R.M.; Andrade, P.B..
A field experiment was carried out to investigate the effect of fertilization level on the phenolic composition of tronchuda cabbage (Brassica oleracea L. var. costata DC) external and internal leaves. Eight different plots were constituted: a control without fertilization, one with organic matter, and six experiments with conventional fertilizers (nitrogen, boron, and sulfur, two levels each). The phenolic compounds were analyzed by reversed-phase HPLC-DAD. External and internal leaves revealed distinct qualitative composition. In the internal leaves were found 15 phenolics (5 kaempferol and 10 cinnamic acid derivatives), whereas the external leaves presented 3-p-coumaroylquinic acid and 13 kaempferol derivatives. Principal component analysis (PCA) was...
Tipo: Article Palavras-chave: Brassica oleracea L. var. costata DC; Tronchuda cabbage; Phenolic compounds; Organic fertilization; Nitrogen; Boron; Sulfur; Principal component analysis.
Ano: 2008 URL: http://hdl.handle.net/10198/776
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New insigths on the metabolic diversity among the epibiotic microbial communitiy of the hydrothermal shrimp Rimicaris exoculata ArchiMer
Zbinden, M; Shillito, B; Le Bris, Nadine; De Montlaur, C; Roussel, Erwan; Guyot, F; Gaill, F; Cambon-bonavita, Marie-anne.
The Rimicaris exoculata dominates the megafauna of some of the Mid Atlantic ridge hydrothermal vent sites. This species harbors a rich community of bacterial epibionts inside its gill chamber. Literature data indicate that a single 16S rRNA phylotype dominates this epibiotic community, and is assumed to be a sulfide-oxidizing bacteria. However attempts Of Cultivation were not successful and did not allow to confirm it. The aim of our study was to test the hypothesis of sulfide oxidation in the gill chamber, by a multidisciplinary approach, using in vivo experiments at in situ pressure in the presence of sulfide, microscopic observations and a molecular survey. Morphology of microorganisms, before and after treatment, was analyzed to test the effect of...
Tipo: Text Palavras-chave: Sulfur; Methane; Iron; Intracellular granules; Hydrothermal vent shrimp; High pressure experiments.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4563.pdf
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Phosphogypsum and vinasse application: soil chemical properties and alfalfa productivity and nutritional characteristics. Repositório Alice
NASCIMENTO, R. do; SOUZA, J. A. de; MOREIRA, A.; MORAES, L. A. C..
bitstream/item/177106/1/2017-Phosphogypsum-document-1.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Medicago Sativa; Cálcio; Magnésio; Potássio; Enxofre; Gesso; Vinhaça; Alfafa; Química do Solo; Alfalfa; Calcium; Magnesium; Potassium; Sulfur; Soil chemistry.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091616
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Potentiometric Titration of Sulfate in Water and Soil Extracts Using a Lead-Mercury Amalgam Indicator Electrode NWISRL
Robbins, C.W.; Carter, D.L.; James, D.W..
Tipo: Article Palavras-chave: Sulfur; Mass Import - autoclassified (may be erroneous).
Ano: 1973 URL: http://eprints.nwisrl.ars.usda.gov/238/1/254.pdf
Registros recuperados: 32
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