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	Provedor de dados BABT (3) Autor Oliveira,Edson L. de (3) Miyazawa,Mário (2) Andrade,Emilene (1) Bianchi,Silmara R. (1) Miyazawa,Mario (1) Parra,Mauro S. (1) Pavan,Marcos A. (1) Pavan,Marcos Antonio (1) Yamashita,Miyuki (1) Mais... Palavra-chave Heavy metal (2) Organic carbon (2) Metal fractionation (1) Metal toxicity (1) Micronutrient (1) Mulch (1) Phaseolus vulgaris L. (1) Plant residue (1) Soil analysis (1) Tropical soils (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2008 (1) 2002 (1) 1998 (1) País Brazil (3) Idioma Inglês (2) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Effect of Organic Matter on Manganese Solubility BABT Andrade,Emilene; Miyazawa,Mário; Pavan,Marcos A.; Oliveira,Edson L. de. The objective of this study was to re-evaluate some aspects of the relative importance of organic matter on Mn solubility in acid soil conditions. Field study showed that black oats, oil seed radish, elephant grass, lupin, leucaena, and coffee leaves serving as mulch decreased Mn solubility as compared with bare soil. The decrease in Mn solubility with plant mulch was related to increase in soil moisture content. Laboratory study showed that increasing temperature from 25 to 100ºC increased Mn solubility and total soil organic carbon was little changed; from 150 to 200ºC increased both Mn solubility and organic carbon oxidation, and up to 300ºC decreased Mn solubility and stoped organic carbon oxidation . Aluminum solubility always increased with... Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant residue; Mulch; Organic carbon; Heavy metal; Micronutrient. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000100003 Relationship between the mass of organic matter and carbon in soil BABT Bianchi,Silmara R.; Miyazawa,Mario; Oliveira,Edson L. de; Pavan,Marcos Antonio. The quantity of soil organic matter (SOM) was estimated through the determination of soil organic carbon (SOC) times a factor, which assumes that 58% of the SOM was formed by carbon. A number of soil samples with wide range of SOC content collected in the state of Paraná, Brazil were evaluated in the laboratory. SOC was measured by Walkley-Black method and the total SOM by loss on ignition. The SOC was positively correlated with SOM. The SOM/SOC ratio varied from 1.91 to 5.08 for the soils. It shows that Brazilian SOM has greater oxidation degree. Although, the SOM and SOC decreased with soil depth the SOM/SOC ratio increased. It showed that SOM in the subsoil contained more oxygen but less carbon than the SOM in the upper soil surface. The CEC/SOC also... Tipo: Info:eu-repo/semantics/article Palavras-chave: Organic carbon; Tropical soils; Soil analysis. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000200005 Absorção de metais pesados do lodo de esgoto pelo feijoeiro (Phaseolus vulgaris L.) BABT Miyazawa,Mário; Oliveira,Edson L. de; Parra,Mauro S.; Yamashita,Miyuki. Toxicity and uptake of heavy metals of sewage sludge by beans (Phaseolus vulgaris L.) were evaluated in green house experiments. Treatments consisted of 1,0 ; 2,0 and 5,0% (m/m) of dry sewage sludge, collected from Londrina (Bom Retiro and ETE-Sul) and Curitiba (ETE-Belém and RALF). Bean ( variety IAPAR 57) was sown three times at 0, 120 and 240 days after the treatments have been applied. Contents of Cd, Cr, Co, Cu, Ni, and Pb in bean tissues cultivated with 5,0% (m/m) of all sewage sludge were similar to the control and Ba contents were reduced by increasing the quantity of sewage sludge in the soil. The Zn content in tissue bean incresed from 86 mg kg-1 of control to 462 mg kg-1 by applying 5% (m/m) of sewage sludge in soil, but plant beans did not show... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris L.; Heavy metal; Metal toxicity; Metal fractionation. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000100012 Registros recuperados: 3 Primeira ... 1 ... Última

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