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Ana Tereza Jordão Pigozzo, Marlene Aparecida Gobbi, Ervim Lenzi, Valentim Ricardo Jordão (Author)
Pág. 1603 - 1608
The potential of two organic residues was studied as micronutrient source in Dark Latosol (DL) in a greenhouse. The treatment consisted of a dose (19 t ha¹) of purified motor oil residue and sewage sludge, both neutralised by a 3:1 of CaO+MgO mixture. Th...
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Marcilene Ferrari Barriquelo, Ervim Lenzi (Author)
Pág. 1319 - 1324
Although sewage sludge (biosolid) provides nutrients for plant growth, its successive use may result in the accumulation of heavy metals to levels detrimental to the environment. Pb behaviour in red nitosol with twice-treated contaminated sewage sludge a...
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Ervim Lenzi, Dirseu Galli, Sandra Adriana Ricardo de Melo, Erika Vilhena da Silva (Author)
Pág. 1325 - 1334
Human wastes are a permanent environmental challenge. Present research analyzed the amount of lead in the sewerage and sludge of the Sewerage Treatment Stations (STSs) of Maringá PR. Samples collection were undertaken at STSs. Sewerage samples were diges...
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Soraya Moreno Palacio, Eduardo Bernardi Luchese, Ervim Lenzi (Author)
Pág. 1151 - 1156
The efficiency of methods Mehlich-1, Bray-1 and phosphorus collector to extract phosphorus from soils was tested. Samples of three soils, Dystric Nitosols; Rhodic Fenasols; Ferric Acresol and maize (Zea mays L.) as test plant were used in a greenhouse. S...
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Margarete Soares da Silva, Sílvia Naves de Souza, Ervim Lenzi, Eduardo Bernardi Luchese (Author)
Pág. 757 - 762
In a clayey soil placed in PVC tubes (80cm high and 10cm in diameter) five treatments were applied with sewage sludge contaminated with Pb. Three with lead, in µg.g-1, at the concentrations of 0 (control); 2,500; 5,000, and two treatments with a mixture ...
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Helder Lopes Vasconcelos, Eduardo Bernardi Luchese, Ervim Lenzi (Author)
Pág. 793 - 767
Chemical extractors behaviors were evaluated in soils which received copper manuring, according to two essays with soybean and corn as testing plants in greenhouse. The experimental design was completely randomized with three replications. The treatment ...
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Vitor de Cinque Almeida, Ervim Lenzi, Luzia Otília Bortotti Favero, Eduardo Bernardi Luchese (Author)
Pág. 419 - 425
The aim of this research was to evaluate the amount of some metals and nutrients in the sludge of the sewage treatment stations (STS) of Maringá. During the year samples of sludge were collected at STS-2 and STS-3. Previously dried and ground the sludge ...
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Margarete Soares da Silva, Silvia Naves de Souza, Ervim Lenzi, Eduardo Bernardi Luchese (Author)
Pág. 427 - 432
Five treatments were applied in a sandy soil with contaminated sewage sludge. Three treatments with lead, in µg.g-1, in the concentrations of 0 (control); 2,500; 5,000 and two with a mixture of lead + cadmium (as interferer), in µg.g-1 each, in the conce...
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Marlene Aparecida Gobbi, Ana Tereza Jordão Pigozzo, Ervim Lenzi, Eduardo Bernardi Luchese (Author)
Pág. 437 - 443
The potentiality of two organic residues as macronutrient sources in soils was evaluated in a greenhouse experiment. The treatments consisted of one dose (38t.ha-1) of petrochemical residue and sewage sludge both neutralized by CaO + MgO at 3:1 ratio. Ma...
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