Search Results - "Fontes, R.L.F"

Reduction of heavy metal contents in liquid effluents by vermicomposts and the use of the metal-enriched vermicomposts in lettuce cultivation by Jordão, C.P., Fialho, L.L., Neves, J.C.L., Cecon, P.R., Mendonça, E.S., Fontes, R.L.F.

“…The removal of Cu, Ni and Zn from electroplating effluents by adsorption in cattle manure vermicompost has been discussed. A glass column 38 cm long and 7 cm…”
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Sequential extraction of copper, nickel, zinc, lead and cadmium from Brazilian Oxysols: metal leaching and metal distribution in soil fractions by Thomasi, S.S., Fernandes, R.B.A., Fontes, R.L.F., Jordão, C.P.

“…The paper reports a study of the mobility of Cu, Ni, Zn, Pb and Cd through the profiles of tropical soils which received addition of those metals on the…”
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Growth of Brazilian Cotton Cultivars in Response to Soil Applied Boron by Fontes, R.L.F, Medeiros, J.F, Neves, J.C.L, Carvalho, O.S, Medeiros, J.C

“…The growth of cotton (Gossypium hirsutum L.) was evaluated in a 6 5 factorial experiment with 6 boron (B) levels (0.0, 0.5, 1.0, 1.5, 2.0, and 3.0 mg dm-3), 5…”
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Effects of Cu, Ni and Zn on Lettuce Grown in Metal-Enriched Vermicompost Amended Soil by Jordao, C.P, Fialho, L.L, Cecon, P.R, Matos, A.T, Neves, J.C.L, Mendonca, E.S, Fontes, R.L.F

“…A greenhouse experiment was conducted to test the effectiveness of cattle manure vermicompost enriched with Cu, Ni or Zn to increase plant yield. An oxisol…”
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Cadmium, Lead, Copper, Zinc, and Nickel in Lettuce and Dry Beans as Related to Mehlich-3 Extraction in Three Brazilian Latossols by Fontes, R.L.F, Pereira, J.M.N, Neves, J.C.L, Fontes, M.P.F

“…Lettuce (Lactuca sativa L.) and dry beans (Phaseolus vulgaris L.) were grown in three Brazilian Red-Yellow Latossols (Oxisols) in greenhouse conditions with…”
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Adsorption of Zn(II) in Oxisols as affected by selective removal of soil fractions by Jordão, C.P., Carari, D.M., Pereira, W.L., Almeida, R.M., Fontes, M.P.F., Fontes, R.L.F., Fernandes, R.B.A.

“…The relative contribution of organic matter, amorphous and crystalline Fe oxides and Al oxides to soil Zn adsorption was evaluated in contaminated and…”
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Molybdenum determination in Mehlich-1 and Mehlich-3 soil test extracts and molybdenum adsorption in Brazilian soils by Fontes, R.L.F, Coelho, H.A

“…The extractant Mehlich-1 is routinely used in Brazil for determination of soil nutrients, whereas Mehlich-3 has been suggested as a promising extractor for…”
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Manganese and zinc leaf application on common bean grown on a "cerrado" soil by Teixeira, I.R, Borem, A, Araujo, G.A. de A, Fontes, R.L.F

“…The occurrence of micronutrient deficiencies, mainly of manganese (Mn) and zinc (Zn) in "cerrado" soils, has been increasing in several crops, including bean…”
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Adsorption/desorption of organic anions in Brazilian Oxisols by Marchi, G, Guilherme, L.R.G, Lima, J.M, Chang, A.C, Fontes, R.L.F

“…Organic anions affect solute mobility in soils. This study evaluated citrate and oxalate adsorption (0 to 4 mmol L(-1), soil-solution 1:100, pH 5.5, ionic…”
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Zinc toxicity in soybean grown at high iron concentration in nutrient solution by Fontes, R.L.F. (DPS-UFV, Vicosa, MG, Brazil.), Cox, F.R

“…Iron (Fe) deficiency in plants may be caused by heavy metal toxicity and is expressed mainly by chlorosis in young leaves. Zinc (Zn) is often the heavy metal…”
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Copper availability as related to soil copper fractions in oxisols under liming by Nascimento, C.W.A. do, Fontes, R.L.F, Melicio, A.C.F.D

“…The knowledge of the chemical forms of copper in soils and the relationships of these forms with soil copper availability are important for predicting the…”
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Interference of iron on soil boron determination with azomethine-H in acid solutions by Ferreira, G.B, Fontes, R.L.F, Venegas, V.H.A, Fontes, M.P.F, Pereira, J.M.N

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Potential environmental consequences of zinc and cadmium contamination in Kaolin Minespoil located in Minas Gerais, Brazil by Silva, A.C. da, Sa Mendonca, E. de, Fontes, R.L.F, Marco, P. de Jr, Ribeiro, F.P

“…Kaolin mines produce a residue that contains high levels of heavy metals, mainly iron (Fe), zinc (Zn), and cadmium (Cd). Metal contamination was evaluated of a…”
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Iron deficiency and zinc toxicity in soybean grown in nutrient solution with different levels of sulfur by Fontes, R.L.F. (DPS-UFV, Vicosa, MG, Brazil.), Cox, F.R

“…A typical symptom of iron (Fe) deficiency in plants is yellowing or chlorosis of leaves. Heavy metal toxicity, including that of zinc (Zn), is often also…”
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Effects of zinc fungicides and different zinc fertilizer application methods on soluble and total zinc in potato plant shoots by Fontes, P.C.R, Moreira, M.A, Fontes, R.L.F, Cardoso, A.A

“…The experiment was carried out to evaluate the effects of fungicides [with or without zinc (Zn)] and different Zn fertilizer application methods (no…”
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Critical phosphorus concentrations in potato plant parts at two growth stages by Rocha, F.A.T, Fontes, P.C.R, Fontes, R.L.F, Reis, F.P

“…Adequately evaluating the phosphorus (P) nutritional status of a potato crop is dependent upon sampling the appropriate plant part at a defined growth stage…”
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Zinc-binding peptides as a function of Zn and S in soybeans by Fontes, R.L.F. (North Carolina State Univ., Raleigh, NC (USA). Dept. of Soil Science), Cox, F.R

“…Soybean (Glycine max [L.] Merr. cv. Ransom) plants were grown for two weeks in nutrient solutions at 0.8 and 40 µM Zn and 0.02 and 20 mM S. Zinc toxicity…”
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