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Registros recuperados: 31
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Adubação do tomateiro rasteiro no submédio São Francisco. Infoteca-e
FARIA, C. M. B. de; PEREIRA, J. R.; COSTA, N. D.; SOARES, J. M.; PINTO, J. M..
O objetivo desse trabalho foi fazer uma apresentação e avaliação dos aspectos técnicos relacionados à prática da adubação associada ao relato e à discussão de resultados de pesquisas obtidos com o tomateiro no Submédio São Francisco.
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Tomate rasteiro; Macronutriente; Submédio São Francisco; Sulphur; Micronutrients; Tomato.; Tomate; Adubação; Cálcio; Enxofre; Fósforo; Magnésio; Lycopersicon Esculentum; Nitrogênio; Potássio.; Fertilizer application; Calcium; Magnesium; Nitrogen; Phosphorus; Potassium; Tomatoes..
Ano: 2000 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134212
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Adubação do tomateiro rasteiro no submédio São Francisco. Infoteca-e
FARIA, C. M. B. de; PEREIRA, J. R.; COSTA, N. D.; SOARES, J. M.; PINTO, J. M..
Introdução; Solo; Absorção de nutrientes; Adubação e função dos nutrientes na colheita; Nitrogênio; Fósforo; Potássio; Cálcio; Micronutrientes; Conlusões; referências bibliográficas.
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Macronutriente; Brasil; Submédio São Francisco; Sulphur; Micronutrients.; Adubação; Cálcio; Enxofre; Fósforo; Lycopersicon Esculentum; Magnésio; Nitrogênio; Potássio; Tomate.; Fertilizer application; Brazil; Calcium; Magnesium; Potassium; Phosphorus; Nitrogen; Tomatoes..
Ano: 2000 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/510594
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Alterações em atributos químicos do solo pela aplicação de calcário na superfície ou incorporado - DOI: 10.4025/actasciagron.v30i2.1738 Agronomy
Freiria, André Costa; UNESP; Mantovani, José Ricardo; Universidade José do Rosario vellano; Ferreira, Manoel Evaristo; UNESP; Cruz, Mara Cristina Pessôa da; UNESP; Yagi, Renato; UNESP.
A aplicação de calcário, na superfície do solo, é necessária em algumas situações agrícolas. O objetivo desse trabalho foi verificar alterações em atributos químicos de um solo de textura média, em razão da aplicação de calcário na superfície ou incorporado. O experimento foi conduzido em condições de laboratório, em colunas de PVC, delineamento inteiramente ao acaso, em esquema fatorial 2 x 4 e uma testemunha, com quatro repetições. Os tratamentos consistiram na combinação de duas doses de calcário (4 e 2 t ha-1) e 4 formas de aplicação do corretivo (aplicado na superfície, sem incorporação, e calcário incorporado nas profundidades de 0 a 5; 0 a 10 e 0 a 20 cm), além da testemunha em que não foi feita a calagem. Após 326 dias de incubação do solo com o...
Palavras-chave: 5.01.01.00-5 Ciência do Solo calagem; Acidez do solo; PH; Saturação por bases; Cálcio; Magnésio 5.01.01.00-5 Ciência do Solo liming; Soil acidity; PH; Base saturation; Calcium; Magnesium.
Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1738
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Antinociceptive potency of aminoglycoside antibiotics and magnesium chloride: a comparative study on models of phasic and incisional pain in rats BJMBR
Prado,W.A.; Machado Filho,E.B..
A close relationship exists between calcium concentration in the central nervous system and nociceptive processing. Aminoglycoside antibiotics and magnesium interact with N- and P/Q-type voltage-operated calcium channels. In the present study we compare the antinociceptive potency of intrathecal administration of aminoglycoside antibiotics and magnesium chloride in the tail-flick test and on incisional pain in rats, taken as models of phasic and persistent post-surgical pain, respectively. The order of potency in the tail-flick test was gentamicin (ED50 = 3.34 µg; confidence limits 2.65 and 4.2) > streptomycin (5.68 µg; 3.76 and 8.57) = neomycin (9.22 µg; 6.98 and 12.17) > magnesium (19.49 µg; 11.46 and 33.13). The order of potency to reduce...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gentamicin; Neomycin; Streptomycin; Magnesium; Antinociception; Aminoglycosides; Pain.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000300017
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Avaliação de gramíneas forrageiras em área de mangue da Ilha de Marajó. Infoteca-e
NASCIMENTO, C. N. B. do; CARVALHO, L. O. D. de M.; CAMARÃO, A. P.; SALIMOS, E. P..
bitstream/item/31973/1/CPATU-BP93.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Terra inundavel; Intervalo de corte; Marajo; Pará; Brasil; Floodable land; Mangrove; Forage grass; Dry matter; Cut interval.; Cálcio; Fósforo; Gramínea Forrageira; Matéria Seca; Mangue; Magnésio; Potássio; Proteína Bruta.; Amazonia; Crude protein; Calcium; Magnesium; Phosphorus; Potassium..
Ano: 1988 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383635
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Carência de macronutrientes e de boro em plantas de juta (Corchorus capsularis L.), variedade roxa. Infoteca-e
VIEGAS, I. de J. M.; HAAG, H. P.; SILVA, J. F. da; MONTEIRO, F. A..
bitstream/item/32693/1/CPATU-BP138.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Macronutriente; Fertilizer; Deficiency; Macronutrient; Potasium; Sulphur.; Adubação; Boro; Cálcio; Deficiência; Enxofre; Fósforo; Juta; Magnésio; Nitrogênio; Potássio.; Boron; Calcium; Jute; Magnesium; Nitrogen; Phosphorus..
Ano: 1992 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/380546
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Cation dynamics in soils with different salinity levels growing irrigated rice Rev. Bras. Ciênc. Solo
Carmona,Felipe de Campos; Anghinoni,Ibanor; Holzschuh,Marquel Jonas; Andrighetti,Marcelo Hoerbe.
Salinity levels in soils of the Outer Coastal Plain of Rio Grande do Sul, Brazil, can be high, due to excess of Na in the irrigation water, evapotranspiration and soil development from marine sediments. The cultivation of irrigated rice could be an alternative, since ion uptake as well as leaching by the establishment of a water layer could mitigate the effects of soil salinity. This study aimed to evaluate the dynamics of basic cations in the solution of Albaqualf soils with different salinity levels growing irrigated rice. The plow layer contained exchangeable Na percentages (ESP) of 5.6, 9.0, 21.2 and 32.7 %. The plant stand, dry matter, Na, K and Ca + Mg uptake at full flowering and grain yield were evaluated. The levels of Na, K, Ca + Mg and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exchangeable sodium percentage; Potassium; Calcium; Magnesium; Electrical conductivity.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000600009
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Classical Methods and Calculation Algorithms for Determining Lime Requirements Rev. Bras. Ciênc. Solo
Guarçoni,André; Sobreira,Fabrício Moreira.
ABSTRACT The methods developed for determination of lime requirements (LR) are based on widely accepted principles. However, the formulas used for calculation have evolved little over recent decades, and in some cases there are indications of their inadequacy. The aim of this study was to compare the lime requirements calculated by three classic formulas and three algorithms, defining those most appropriate for supplying Ca and Mg to coffee plants and the smaller possibility of causing overliming. The database used contained 600 soil samples, which were collected in coffee plantings. The LR was estimated by the methods of base saturation, neutralization of Al3+, and elevation of Ca2+ and Mg2+ contents (two formulas) and by the three calculation algorithms....
Tipo: Info:eu-repo/semantics/article Palavras-chave: PH; Calcium; Magnesium; Deficiency; Overliming.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100504
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Comparative effect of ion calcium and magnesium in the activation and infection of the murine macrophage by Leishmania major Biol. Res.
LANZA,HENRIQUE; AFONSO-CARDOSO,SANDRA R; SILVA,ADRIANO G; NAPOLITANO,DANIELLE R; ESPÍNDOLA,FOUED S; PENA,JANETHE D.O; SOUZA,MARIA A.
Amastigotes of Leishmania major have a great ability to evade destruction in host cells. This study investigated the activation in resident, inflammatory macrophages and J774 cells in vitro treated with lipopolysaccharide (LPS), soluble Leishmania antigen (SLA), calcium ionophore (CaI) and magnesium (Mg2+) alone or combined. An increase in nitric oxide (NO) production was observed in J774 or inflammatory macrophages treated with LPS alone or in combination with SLA and CaI. The same treatments did not affect the NO release by resident macrophages. There was no interference in uptake of L. major but CaI decreased intracellular proliferation of the parasite. This study demonstrated the importance of CaI in decreasing L. major proliferation inside murine...
Tipo: Journal article Palavras-chave: Calcium; Leishmania major; Macrophage; Magnesium; Nitric oxide.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000300004
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Effect of inoculation associated to leaf sprayed Co+Mo on the yield and grain nutrients in common bean (Phaseolus vulgaris L) BABT
Berton Junior,João Francisco; Santos,Julio Cesar Pires; Coelho,Cileide Maria Medeiros; Klauberg Filho,Osmar.
The objective of this work was to evaluate the efficiency of nitrogen fixing inoculum associated with Co + Mo leaf spray on the common bean grain yield and grain nutrients, cv. FT Nobre. Three dosages of the inoculant (0, 200 and 400 g/50 kg seeds), combined with four Co + Mo leaf spray levels (T0=0,0; T1=4.9,49; T2=7.3,73; and T3=9.7,97 g ha-1 of Co and Mo, respectively) were tested. The grain yield with the use of the inoculant (400 g / 5O kg seed-1) associated with the higher level of Co+Mo (T2 and T3) was very similar to the mineral nitrogen condition fertilizer recommended for the bean (70 kg ha-1 of N). With the increased inoculant dosage, an increase of the protein content and of P and Mg in the grain was also observed. The results indicated that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seed quality; Phosphorus; Magnesium; Nitrogen.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600002
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Effect of magnesium ion on human osteoblast activity BJMBR
He,L.Y.; Zhang,X.M.; Liu,B.; Tian,Y.; Ma,W.H..
Magnesium, a promising biodegradable metal, has been reported in several studies to increase bone formation. Although there is some information regarding the concentrations of magnesium ions that affect bone remodeling at a cellular level, little is known about the effect of magnesium ions on cell gap junctions. Therefore, this study aimed to systematically investigate the effects of different concentrations of magnesium on bone cells, and further evaluate its effect on gap junctions of osteoblasts. Cultures of normal human osteoblasts were treated with magnesium ions at concentrations of 1, 2 and 3 mM, for 24, 48 and 72 h. The effects of magnesium ions on viability and function of normal human osteoblasts and on gap junction intercellular communication...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Magnesium; Osteoblast; Gap junction intercellular communication.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000700604
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Exchangeable basic cations and nitrogen distribution in soil as affected by crop residues and nitrogen BABT
Rosolem,Ciro Antonio.
In this work, a greenhouse experiment was conducted to study the effects of N fertilization and residues of pearl millet, black oats and oilseed radish on pH and Ca, Mg, K, NO3-, and NH4+ distribution within the profile of a Distroferric Red Latosol. The equivalent of 8 t ha-1 of plant residues were placed on soil surface. Lime was applied on the soil surface and nitrogen was applied over the straw at 0, 50, 100, and 150 mg kg-1, as ammonium nitrate. Corn was grown for 57 days. Calcium contents and pH in the soil profile were decreased by Pearl millet residue, while black oat and oilseed radish increased Ca contents and these effects are not related with Ca contents in residue tissue. However, the presence of plant residues increased nitrate, ammonium, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calcium; Magnesium; Nitrogen; Potassium; Soil bases; No till.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300003
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Girassol: nutricao mineral e adubacao. Infoteca-e
SFREDO, G. J.; CAMPO, R. J.; SARRUGE, J. R..
Exigencias nutricionais; Efeitos dos nutrientes essenciais; Calagem e adubacao.
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Nutricao mineral; Brasil; Sunflower; Fertilization; Sulphur.; Adubação; Calagem; Boro; Cálcio; Cobre; Ferro; Enxofre; Fósforo; Girassol; Magnésio; Manganês; Nitrogênio; Molibdênio; Potássio; Zinco.; Brazil; Boron; Copper; Calcium; Liming; Magnesium; Manganese; Iron; Nutrition; Molybdenum; Nitrogen; Phosphorus; Potassium; Zinc..
Ano: 1984 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445619
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Hypomagnesemia in critically ill cancer patients: a prospective study of predictive factors BJMBR
Deheinzelin,D.; Negri,E.M.; Tucci,M.R.; Salem,M.Z.; Cruz,V.M. da; Oliveira,R.M.; Nishimoto,I.N.; Hoelz,C..
Hypomagnesemia is the most common electrolyte disturbance seen upon admission to the intensive care unit (ICU). Reliable predictors of its occurrence are not described. The objective of this prospective study was to determine factors predictive of hypomagnesemia upon admission to the ICU. In a single tertiary cancer center, 226 patients with different diagnoses upon entering were studied. Hypomagnesemia was defined by serum levels <1.5 mg/dl. Demographic data, type of cancer, cause of admission, previous history of arrhythmia, cardiovascular disease, renal failure, drug administration (particularly diuretics, antiarrhythmics, chemotherapy and platinum compounds), previous nutrition intake and presence of hypovolemia were recorded for each patient. Blood...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Magnesium; Magnesium deficiency; Intensive care unit; Electrolytes; Surgery; Dietary habits; Postoperative patient.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001200007
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Identificación de la deficiencia de magnesio en pepino mediante espectroradiometría. Colegio de Postgraduados
Aguilar Ramírez, María del Rocío.
La utilización de sensores remotos se describe como una técnica de diagnóstico nutrimental promisoria en diferentes aspectos de la agricultura. En este sentido, el presente trabajo tuvo como objetivo determinar estrés por magnesio en pepino, a través de técnicas de percepción remota. Se determinó la reflectancia de hojas recientemente maduras de pepino mediante el uso de Radiómetro, y de imágenes obtenidas con escáner y con cámara digital; también se estimó la concentración de clorofila utilizando un medidor portátil (SPAD 502) y la concentración de magnesio de referencia fue determinada por espectrofotometría de emisión atómica. A partir de estas mediciones se generaron modelos de tipo polinómico, logarítmico y exponencial para relacionar las propiedades...
Palavras-chave: Sensores remotos; Propiedades ópticas; Firmas espectrales; Magnesio; Reflectancia; Remote sensing; Optical properties; Spectral signatures; Magnesium; Reflectance; Maestría; Edafología.
Ano: 2011 URL: http://hdl.handle.net/10521/401
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Improved biological performance of magnesium by micro-arc oxidation BJMBR
Ma,W.H.; Liu,Y.J.; Wang,W.; Zhang,Y.Z..
Magnesium and its alloys have recently been used in the development of lightweight, biodegradable implant materials. However, the corrosion properties of magnesium limit its clinical application. The purpose of this study was to comprehensively evaluate the degradation behavior and biomechanical properties of magnesium materials treated with micro-arc oxidation (MAO), which is a new promising surface treatment for developing corrosion resistance in magnesium, and to provide a theoretical basis for its further optimization and clinical application. The degradation behavior of MAO-treated magnesium was studied systematically by immersion and electrochemical tests, and its biomechanical performance when exposed to simulated body fluids was evaluated by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Magnesium; Micro-arc oxidation; Biodegradable; Biocompatibility; Mechanical properties; Corrosion.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000300214
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Influence of rootstock on nutrient content in grape petioles Rev. Bras. Frutic.
Dalbó,Marco Antonio; Schuck,Enio; Basso,Clori.
Genetic diversity of rootstocks can affect nutrient uptake and the nutrient status of grapevines. The rootstock influence on nutrient content in grape petioles was evaluated on three rootstocks competition experiments carried out at Vale do Rio do Peixe region, in the state of Santa Catarina, Brazil, with the cultivars Niagara Rosada, Concord, and Isabella, grafted on different rootstocks. Two soil liming depths were also evaluated in the Isabella experiment. The greatest rootstock effect was observed on K and Mg content and K/Mg ratio in the petioles. The Vitis vinifera x V. rotundifolia hybrid rootstocks VR 043-43 and VR 044-4 provided the highest K/Mg values and self rooted Isabella the lowest K/Mg ratio. The other tested rootstocks resulted in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mineral nutrition; Viticulture; Potassium; Magnesium.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000300030
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Influência de gesso agrícola na reatividade de diferentes frações granulométricas de calcário no solo. Infoteca-e
KURIHARA, C. H.; SILVA, C. J. da; MACHADO, T. M.; SILVA, L. B. X. da.
Reação de calcário no solo; Reação de gesso agrícola no solo; Implicações do uso de gesso associado ao calcário.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Cálcio; Fertilidade do Solo; Gesso; Magnésio; Solubilidade.; Calcium; Magnesium; Plaster; Soil fertility; Solubility..
Ano: 2017 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1080570
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Inhibitory effect of high [Mg2+] on the vasopressin-stimulated hydroosmotic permeability of the isolated perfused cortical collecting duct BJMBR
Falkenstein,D.; Ribeiro,C.A.L.; Figueiredo,J.F..
High magnesium concentration inhibits the effect of arginine vasopressin (AVP) on smooth muscle contraction and platelet aggregation and also influences hepatocyte AVP receptor binding. The aim of this study was to determine the role of magnesium concentration [Mg2+] in AVP-stimulated water transport in the kidney collecting duct. The effect of low and high peritubular [Mg2+] on the AVP-stimulated osmotic water permeability coefficient (Pf) was evaluated in the isolated perfused rabbit cortical collecting duct (CCD). Control tubules bathed and perfused with standard Ringer bicarbonate solution containing 1 mM Mg2+ presented a Pf of 223.9 ± 27.2 µm/s. When Mg2+ was not added to the bathing solution, an increase in the AVP-stimulated Pf to 363.1 ± 57.2 µm/s...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Cortical collecting ducts; Magnesium; Arginine vasopressin; Osmotic water permeability.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000800016
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Lipid profile and quality of meat from finishing pig supplemented with minerals Ciênc. Tecnol. Aliment.
ALBUQUERQUE,Tatiane Mendonça Nogueira Carneiro de; RAMOS,Eduardo Mendes; MACHADO,Isabella Fiche da Matta; BORGES,Paula Caixeta; BOLLETA,Ana Gabriella; MARÇAL,Joanna Oliveira; CARVALHO,Fernanda Paul de; FARIA,Peter Bitencourt.
Abstract This study aimed evaluate the effects of the associated supplementation of: chromium more iron (CrFe), magnesium more selenium (MgSe) and the four minerals (CrFeMgSe) on the parameters related to the pork quality. Supplementation with MgSe reduced the ether extract of the meat and changed the fatty acids profile, increasing the poly-unsaturated, n-3, n-6, the polyunsaturated: saturated rate and the activity of the enzyme Thioesterase index, besides reducing the total number of saturated fatty acids and the Atherogenicity index. It promoted a reduction in a*, b* and C* indices and increased h* of the chilled meat stored. Over the storage days under refrigeration, there was linear drop for L* and a* and an increase to C*. The associated use of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromium; Fatty acid; Iron; Magnesium; Selenium.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000300721
Registros recuperados: 31
Primeira ... 12 ... Última
 

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