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Chemical speciation of hexavalent chromium in organic fertilizer by LC-ICP-MS and spectrophotometry. Author(s): SÁ, I. P.; BANHOS, S.; ANDRADE, M. S.; NHAMUE, P. F.; NOGUEIRA, A. R. de A. Normative Instruction n. 7 of 04/12/2016 of the Ministry of Agriculture, Livestock and Food Supply (MAPA) defines the maximum values of contaminants allowed in organic fertilizers and soil conditioner... ... Repository: BDPA Publication year: 2023
Acute Toxicity by Water Containing Hexavalent or Trivalent Chromium in Native Brazilian Fish, Piaractus mesopotamicus: Anatomopathological Alterations and Mortality. Author(s): CASTRO, M. P.; MORAES, F. R. de; FUJIMOTO, R. Y.; CRUZ, C. da; BELO, M. A. de A.; MORAES, J. R. E. de This study evaluated the toxicity of hexavalent and trivalent compounds of chromium to the pacu, Piaractus mesopotamicus, in acute exposures of 96 h through mortality and histopathological responses.... ... Repository: BDPA Publication year: 2014
A factorial design applied to the study of chromium toxicity on the glutathione levels of Brachiaria brizantha and Brachiaria ruziziensis seedlings. Author(s): MARQUES, R.; OLIVEIRA, M. A. de L.; REIS, C. R. G. dos; KOPP, M. M.; PASSOS, L. P. Chromium toxicity in plants is observed at multiple levels, from reduced yield, through effects on leaf and root growth, to inhibition on enzymatic activities and mutagenesis. Repository: BDPA Publication year: 2015
Chromium carbochelate dietary supplementation favored the glucocorticoid response during acute inflammation of Piaractus mesopotamicus. Author(s): CASTRO, M. P. de; CLAUDIANO, G. S.; BORTOLUZZI, N. L.; GARRIDO, E.; FUJIMOTO, R. Y.; BELO, M. A. A.; SHIMADA, M. T.; MORAES, J. R. E.; MORAES, F. R. Repository: BDPA Publication year: 2014
Effects of toxic levels of aluminum and chromium on the performance of sugarcane genotypes. Author(s): PASSOS, L. P.; SUZUKI, L. S.; CHIAVEGATTO, R. B.; SILVA, C. O.; CAMPOS, F. V. DE; DIAS, M. L.; ALMEIDA, D. P. DE; MACIEL, T. T.; SILVA, D. P. DA New sugarcane varieties with higher yields are continuously developed and tested, and many breeding programs are targeted to improve resistance to abiotic stresses such as metal toxicity. Aluminum and... ... Repository: BDPA Publication year: 2012
Evaluatin of metabisulfite and a commercial stee wool for removing chromium (VI) from wastewater. Author(s): GROMBONI, C. F.; DONATI, G. L; MATOS, W. O.; NEVES, E. F. A.; NOGUEIRA, A. R. de A.; NOBREGA, J. A. Efficiency of metabisulfite and a commercial steel wool as reducing agents in the removal of Cr(VI) from wastewaters was evaluated. Chromium( VI) was converted to Cr(III), precipitated with NaOH, and... ... Repository: BDPA Publication year: 2010
Tolerance to toxic aluminum em chromium of in vitro cultivated sugarcane seedlings as affected by boron-enriched medium. Author(s): PASSOS, L. P.; SUZUKI, L. S.; REIS, P. R. C.; CAMPOS, F. V. DE; SANTISTEVAN, G.; CHIAVEGATTO, R. B.; SILVA, C. O. Symptoms of metal toxicity are frequent in cultivated crops. In Brazil, most soils are acidic with often high contents of toxic aluminum. In addition, harmful levels of toxic chromium occur in some pl... ... Repository: BDPA Publication year: 2012
Estimating forage intake of lactating dual-purpose cows using chromium oxide and n-alkanes as external markers. Author(s): OLIVEIRA, D. E. de; MEDEIROS, S. R. de; TEDESCHI, L. O.; AROEIRA, L. J. M.; SILVA, S. C. da The n-alkanes have been used to estimate forage dry matter intake, digestibility and the diet composition in grazing animals. The objective this study was to compare chromium oxide and n-alkanes techn... ... Repository: BDPA Publication year: 2007
Chromium speciation in organic fertilizer by cloud point extraction and optimization through experimental Doehlert design as support for legislative aspects. Author(s): SÁ, I. P. de; SOUZA, G. B. de; NOGUEIRA, A. R. de A. Brazilian and EU legislation establishes 2 mg kg?1 as the maximum limit of Cr(VI) in organic fertilizers. A procedure involving chromium speciation was developed. With this approach, the interference... ... Repository: BDPA Publication year: 2021
Response of boron-enriched in vitro micropropagated sugarcane seedlings to aluminum and chromium toxicity. Author(s): PASSOS, L. P.; SUZUKI, L. S.; REIS, P. R. C.; CAETANO, L. F.; SILVA, D. P. DA; LIZARDO, D. P.; AZEVEDO, A. B. R.; FONSECA, C. R. Repository: BDPA Publication year: 2013

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