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  • 1
    Online Resource
    Online Resource
    Remediação de solos tratados com lodo rico em zinco
    FapUNIFESP (SciELO) ; 2006
    In:  Revista Brasileira de Engenharia Agrícola e Ambiental Vol. 10, No. 3 ( 2006-09), p. 738-744
    Details
    In: Revista Brasileira de Engenharia Agrícola e Ambiental, FapUNIFESP (SciELO), Vol. 10, No. 3 ( 2006-09), p. 738-744
    Abstract: This research had as objectives: to study the alterations in the distribution of Zn in different chemical carbonates fractions of soil treated with sewage sludge, caused by the application of carbonates, oxides and phosphates to determine the efficiency of these products in the contention of this element; and to evaluate the solubility reduction through the use of hyper accumulator plant. Industrial sewage sludge was applied in samples of surface layer of a Yellow Red Latossol and Yellow Red Argissol. The addition of CaCO3 caused chemical immobilization of Zn due to association of these elements with more stable chemical fractions. The FeCl3 + EDTA caused dissolution of Zn compounds and dessorption of these elements quelated by surface functional groups. The KH2PO4 did not alter the distribution of Zn in the different chemical forms in the soils. The Zn concentrated, mainly in the roots, which behaved as a natural filter, limiting the flux of these elements to the aerial part. In both soils, CaCO3 caused the smallest concentration of Zn in the root and aerial part. The addition of FeCl3+EDTA promoted the increase of Zn levels in the plant.
    Type of Medium: Online Resource
    ISSN: 1415-4366
    URL: Article
    DOI: 10.1590/S1415-43662006000300029
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2006
    detail.hit.zdb_id: 2164420-2
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  • 2
    Online Resource
    Online Resource
    Proposição de valores de referência para a concentração natural de metais pesados em solos brasileiros
    FapUNIFESP (SciELO) ; 2006
    In:  Revista Brasileira de Engenharia Agrícola e Ambiental Vol. 10, No. 3 ( 2006-09), p. 699-705
    Details
    In: Revista Brasileira de Engenharia Agrícola e Ambiental, FapUNIFESP (SciELO), Vol. 10, No. 3 ( 2006-09), p. 699-705
    Abstract: To evaluate the extension of soil pollution of a site it is common to compare the contents found in a specific soil with those in natural conditions (unpolluted) or with reference values (patterns). The goal of this study was to propose: 1) reference values (VR) and tolerance limits for the most representative Brazilian soils, and 2) a model for obtaining the levels of Cd, Co, Cr, Cu, Ni, Pb and Zn in a soil under natural conditions from the silt, clay, Mn, Fe contents and CEC value. A set of 256 soil samples was formed by similarity in seven groups and the concentrations corresponding to the upper quartile of the data were calculated. These concentrations are proposed as the reference values (VR) in Brazilian soils. Besides, tolerance limits admitted for each group were taken as antilog (m + 2s), where m (average) and s (standard deviation) were transformed to log10. The classification functions of the discriminant analysis proved to be appropriate to allocate new samples in the established groups. Thus, it is possible to evaluate soils under anthropogenic activity and to know if there is a reason for suspecting of pollution of the site.
    Type of Medium: Online Resource
    ISSN: 1415-4366
    URL: Article
    DOI: 10.1590/S1415-43662006000300024
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2006
    detail.hit.zdb_id: 2164420-2
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  • 3
    Online Resource
    Online Resource
    Estimation of Reference Values for Cadmium, Cobalt, Chromium, Copper, Nickel, Lead, and Zinc in Brazilian Soils
    Informa UK Limited ; 2006
    In:  Communications in Soil Science and Plant Analysis Vol. 37, No. 7-8 ( 2006-06), p. 945-959
    Details
    In: Communications in Soil Science and Plant Analysis, Informa UK Limited, Vol. 37, No. 7-8 ( 2006-06), p. 945-959
    Type of Medium: Online Resource
    ISSN: 0010-3624 , 1532-2416
    URL: Article
    DOI: 10.1080/00103620600583885
    Language: English
    Publisher: Informa UK Limited
    Publication Date: 2006
    detail.hit.zdb_id: 2053897-2
    SSG: 12
    SSG: 13
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  • 4
    Online Resource
    Online Resource
    Teor de zinco, cádmio e chumbo em plantas de arroz em solos incubados com resíduo siderúrgico
    FapUNIFESP (SciELO) ; 2010
    In:  Revista Brasileira de Engenharia Agrícola e Ambiental Vol. 14, No. 10 ( 2010-10), p. 1087-1093
    Details
    In: Revista Brasileira de Engenharia Agrícola e Ambiental, FapUNIFESP (SciELO), Vol. 14, No. 10 ( 2010-10), p. 1087-1093
    Abstract: The effects of the application of slag, from the concentration of Zn in the mud of steel slag, as a source of Zn for rice plants and the toxicity of Cd and Pb in the residue were studied in a greenhouse during the period from April 2005 to March 2006. The material used came from the surface horizon of a Red Yellow Oxisol (LVA); Fluvic Entisol (RU) and Red Yellow ultisol (PVA), collected in the municipality of Pinheiral, in the State of Rio de Janeiro. The variety of rice (Oryza sativa L.) BRS Joker was used. Plants were harvested at 145 days after sowing; those grown in Fluvic Entisol had the highest dry matter production and higher zinc accumulation, but smaller accumulation of cadmium, while the ones in the Typic soil showed the lowest dry matter production, lower accumulation of zinc, but higher lead and cadmium accumulation. The DTPA extractor was subjected to high and significant correlations with the concentrations of lead, cadmium and zinc in roots and shoots and, with the total amount accumulated in plants, showed as a good indicator of the bioavailability of these three metals. According to the characteristics presented in the soils studied and the phytotoxic concentrations of lead and cadmium found in plants grown in PVA, the use of this residue as a source of zinc for rice cultivation is not recommended.
    Type of Medium: Online Resource
    ISSN: 1415-4366
    URL: Article
    DOI: 10.1590/S1415-43662010001000010
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2010
    detail.hit.zdb_id: 2164420-2
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  • 5
    Online Resource
    Online Resource
    Desempenho de duas espécies de eucalipto em solo com elevados teores de Mn
    FapUNIFESP (SciELO) ; 2012
    In:  Revista Brasileira de Engenharia Agrícola e Ambiental Vol. 16, No. 1 ( 2012-01), p. 92-98
    Details
    In: Revista Brasileira de Engenharia Agrícola e Ambiental, FapUNIFESP (SciELO), Vol. 16, No. 1 ( 2012-01), p. 92-98
    Abstract: Currently, there is considerable interest in developing strategies that are efficient and durable in the remediation of soils contaminated with heavy metals. This study aimed to evaluate the development of Eucalyptus urophylla and Eucalyptus saligna grown in contaminated substrate with Mn collected in the area near the Port of Itaguaí and location of disposal of hazardous waste of Cia Mercantil and Industrial Inga in Itaguaí. The substrate was treated with two industrial waste, with a characteristic alkaline (slag of melt shop) and another with high content of iron oxide (lamination of scale). It was found that the untreated substrate, had a high content of Mn in fractions phytoavailable, being these values toxic to the species. The treatments caused a reduction in the concentrations of Mn in solution and exchangeable (fractions phytoavailable) and increase in more stable phases. The lowest dose of slay of melt shop was enough to decrease the concentrations of Mn in solution, and this effect is evidenced by the development of plants and in the higher dose of slay of melt shop the growth of studied species was more. Eucalyptus urophylla showed greater development and greater extraction of this element.
    Type of Medium: Online Resource
    ISSN: 1415-4366
    URL: Article
    DOI: 10.1590/S1415-43662012000100012
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2012
    detail.hit.zdb_id: 2164420-2
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  • 6
    Online Resource
    Online Resource
    Uso de fosfato para remoção de arsênio de solo contaminado
    FapUNIFESP (SciELO) ; 2010
    In:  Revista Brasileira de Engenharia Agrícola e Ambiental Vol. 14, No. 1 ( 2010-01), p. 101-106
    Details
    In: Revista Brasileira de Engenharia Agrícola e Ambiental, FapUNIFESP (SciELO), Vol. 14, No. 1 ( 2010-01), p. 101-106
    Abstract: Several remediation procedures for soils contaminated with heavy metals are based on decontamination or stabilization. The selection of one of them for a given site should take data regarding the site and the contaminating agent, contamination degree, future use of the site and the economic viability of remediation process into account. The Mercantil Ingá Company, located in the municipality of Itaguaí - RJ, Brazil, has extracted zinc from calamine through hydrometallurgy. During 31 years, the company improperly disposed of about three million tons of hazardous residues in its area. One of the stages of the zinc extraction process consists of the addition of arsenic trioxide for the removal of impurities and the soil was contaminated with arsenic from areas near sites where the hazardous residues were disposed. In this context, this study evaluated the ex situ remediation technique through removal by leaching the contaminated soil with arsenic, and the treatment of the effluent generated. The fractioning showed that the pH reduction increased the arsenic retention. The potassium dihydrogenophosphate concentration in 0.4 mol L-1 seemed to be efficient in the removal of the arsenic present in the contaminated soil, achieving the dissolution of about 70% of this element at pH 6.2. The ferric chloride was more efficient than the aluminum sulphate for the removal, through coagulation, of the arsenic present in the effluent generated in the soil leaching.
    Type of Medium: Online Resource
    ISSN: 1415-4366
    URL: Article
    DOI: 10.1590/S1415-43662010000100014
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2010
    detail.hit.zdb_id: 2164420-2
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  • 7
    Online Resource
    Online Resource
    Effect of short-term pig slurry amendment of soil on humified organic matter and its relationship with the dynamics of heavy metals and metals uptake by plants
    Informa UK Limited ; 2022
    In:  Journal of Environmental Science and Health, Part A Vol. 57, No. 11 ( 2022-09-19), p. 958-969
    Details
    In: Journal of Environmental Science and Health, Part A, Informa UK Limited, Vol. 57, No. 11 ( 2022-09-19), p. 958-969
    Type of Medium: Online Resource
    ISSN: 1093-4529 , 1532-4117
    URL: Article
    DOI: 10.1080/10934529.2022.2132795
    Language: English
    Publisher: Informa UK Limited
    Publication Date: 2022
    detail.hit.zdb_id: 2043251-3
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  • 8
    Online Resource
    Online Resource
    Residual effect of sewage sludge fertilization on sunflower yield and nutrition
    FapUNIFESP (SciELO) ; 2015
    In:  Revista Brasileira de Engenharia Agrícola e Ambiental Vol. 19, No. 10 ( 2015-10), p. 1005-1011
    Details
    In: Revista Brasileira de Engenharia Agrícola e Ambiental, FapUNIFESP (SciELO), Vol. 19, No. 10 ( 2015-10), p. 1005-1011
    Abstract: RESUMONeste trabalho objetivou-se avaliar o efeito residual da adubação com lodo de esgoto sobre a produção e nutrição do girassol em segundo cultivo. O experimento foi realizado no período de abril a agosto de 2012. Os tratamentos corresponderam a quatro doses de lodo de esgoto (0; 10; 20 e 30 t ha-1, em base seca) aplicadas no primeiro cultivo de girassol, distribuídas no delineamento em blocos casualizados, com seis repetições. O diâmetro do caule, a altura da planta, o diâmetro do capítulo e a produtividade do girassol aumentaram com o incremento de lodo de esgoto sendo os valores máximos observados na dose de 30 t ha-1. Os teores de cálcio e magnésio no solo, o pH, a soma de bases, a capacidade de troca catiônica efetiva e potencial e a percentagem de saturação de bases aumentaram enquanto a acidez potencial e os teores manganês e ferro na folha diminuíram com o incremento das doses residuais de lodo de esgoto. Houve redução na produtividade e nas características de crescimento do girassol no segundo cultivo, recomendando-se novas adubações com lodo, a cada plantio.
    Type of Medium: Online Resource
    ISSN: 1415-4366
    URL: Article
    DOI: 10.1590/1807-1929/agriambi.v19n10p1005-1011
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2015
    detail.hit.zdb_id: 2164420-2
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  • 9
    Online Resource
    Online Resource
    Soil Factors Related to the Severity of Clubroot in Rio de Janeiro, Brazil
    Scientific Societies ; 2017
    In:  Plant Disease Vol. 101, No. 8 ( 2017-08), p. 1345-1353
    Details
    In: Plant Disease, Scientific Societies, Vol. 101, No. 8 ( 2017-08), p. 1345-1353
    Abstract: Soil pH and calcium levels are determining factors in the success or failure of managing clubroot during the cultivation of Brassica spp. The aim of the present study was to evaluate the influence of soil attributes in tropical regions on the development of roots and clubroot and the accumulation of biomass and nutrients in cauliflower. One hundred and fifty-one samples of soil and plants were collected from 16 family farms that have a history of more than 50 years of regular cauliflower cultivation in Nova Friburgo, Rio de Janeiro, Brazil. Chemical and physical analyses were performed on the soil samples, and the severity of clubroot and the accumulation of biomass and macronutrients in individual plants and plant tissues. Clustering and main principal component analyses were performed on the data. The disease occurred on all farms, but with different intensities. A direct relationship was observed for the soil attributes (acidity and exchangeable aluminum content in particular) with the percentage of roots with clubroot and with the accumulation of biomass and macronutrients in the different plant organs. To reduce losses from clubroot in weathered soils, practices should aim to reduce the pathogen’s inoculum potential and improve the physical and chemical conditions of the soil, which would favor root development of the plants.
    Type of Medium: Online Resource
    ISSN: 0191-2917 , 1943-7692
    URL: Article
    DOI: 10.1094/PDIS-07-16-1024-SR
    Language: English
    Publisher: Scientific Societies
    Publication Date: 2017
    detail.hit.zdb_id: 2042679-3
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  • 10
    Online Resource
    Online Resource
    Resilience of Red Ferralitic soils in the karst regions of Mayabeque Province, Cuba
    Wiley ; 2019
    In:  Land Degradation & Development Vol. 30, No. 1 ( 2019-01-15), p. 109-116
    Details
    In: Land Degradation & Development, Wiley, Vol. 30, No. 1 ( 2019-01-15), p. 109-116
    Abstract: There is an ongoing global debate on soil degradation, its magnitude and agro‐environmental impact, where long‐term experimentation provides quantitative criteria for its capacity for restauration with rational use and management. In this context, research in the last 30 years has confirmed that the resilience of Red Ferralitic soils in the karst regions of western Cuba is a multifactorial process, conditioned not only by the intrinsic properties of the soil surface and use conditions but also dependent on geological–geomorphological and use conditions. This study determined the capacity of Red Ferralitic soils for blocking karst‐erosion to be a period of 50 years in the San Jose de Las Lajas polje. They would recover, but depending on the amount of limestone impurities, it would take from 100 to 600 years. In any case, there are very few similar studies, not only because of the time necessary to achieve reliable results but also because in the case of karst ecosystems, they are subjected to constant disturbances impeding resilience research.
    Type of Medium: Online Resource
    ISSN: 1085-3278 , 1099-145X
    URL: Issue
    URL: Article
    DOI: 10.1002/ldr.v30.1
    DOI: 10.1002/ldr.3192
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2021787-0
    detail.hit.zdb_id: 1319202-4
    SSG: 14
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