Copper and zinc fractions in the profile of an Inceptisol cultivated with apple in southern Brazil.

The present study aimed to evaluate the accumulation and distribution of Cu and Zn fractions in the profile of an Inceptisol by application of fungicides with a previous history of apple cultivation in southern Brazil. Stratified soil samples (0.0 ? 0.025 m, 0.025 ?0.050 m, 0.05 ? 0.10 m, 0.10 ? 0.15 m, 0.15 ? 0.20 m and 0.20 ? 0.40 m depth) were collected in two apple orchards (8 years old and 18 years old), and in a native pasture area adjacent to the orchards. The soil was subjected to analysis of physical and chemical properties and to chemical fractionation of Cu and Zn. The fractions of soluble, exchangeable, organic, residual and total Cu and Zn accumulated in the topsoil (0.0 ? 0.025 m) of the orchards, being higher in the orchard cultivated for 18 years. Most Cu, especially in the topsoil of the 18 years old orchard, accumulated in the less stable organic fraction, which can potentiate toxicity to plants and transfer Cu e Zn to ground water. In deeper layers, Cu was also distributed in the residual and mineral fractions, which are more stable. Most Zn in the soil of the apple orchards was distributed in the mineral and residual fractions, which have low mobility and low potential toxicity to plants. Key words: Malus domestica, trace elements, toxicity, environmental contamination.

Bibliographic Details

Main Authors:	BRUNETTO, G., BENEDET, L., AMBROSINI, V. G., COMIN, J. J., MELO, G. W. B. de, SANTOS, M. A. dos, LOURENZI, C. R., LOSS, A., BELLI FILHO, P., SCHMITT, D. E., COUTO, R.
Other Authors:	Gustavo Brunetto, Universidade Federal de Santa Maria - Departamento de Solos - Santa Maria (RS), Brazil; Lucas Benedet, Universidade Federal de Santa Catarina - Centro de Ciências Rurais - Florianópolis (SC), Brazil; Vítor Gabriel Ambrosini, Universidade Federal de Santa Catarina - Centro de Ciências Rurais - Florianópolis (SC), Brazil; Jucinei Jose Comin, Universidade Federal de Santa Catarina - Centro de Ciências Rurais - Florianópolis (SC), Brazil.; GEORGE WELLINGTON BASTOS DE MELO, CNPUV; Matheus Ademir dos Santos, Universidade Federal de Santa Catarina - Centro de Ciências Rurais - Florianópolis (SC), Brazil; Cledimar Rogério Lourenzi, Universidade Federal de Santa Catarina - Centro de Ciências Rurais - Florianópolis (SC), Brazil; Arcangelo Loss, Universidade Federal de Santa Catarina - Centro de Ciências Rurais - Florianópolis (SC), Brazil.; Paulo Belli Filho, Universidade Federal de Santa Catarina - Centro de Ciências Rurais - Florianópolis (SC), Brazil.; Djalma Eugênio Schmitt, Universidade Federal de Santa Catarina - Centro de Ciências Rurais - Florianópolis (SC), Brazil; Rafael Couto, Universidade Federal de Santa Maria - Departamento de Solos - Santa Maria (RS), Brazil.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2019-01-09
Subjects:	Environmental contamination, Southern Brazil, Malus Domestica, Trace elements, Toxicity, Copper, Zinc, Apples,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103351 http://dx.doi.org/10.1590/1678-4499.2017033
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