Influence of Wheat Ash on the MCPA Immobilization in Agricultural Soils
| Autor: | Agáta Fargašová, Lenka Zemanová, Edgar Hiller, Mikuláš Bartal |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
inorganic chemicals
Regosol Crop residue Slovakia Health Toxicology and Mutagenesis Amendment Incineration 2-Methyl-4-chlorophenoxyacetic Acid Toxicology complex mixtures MCPA chemistry.chemical_compound Soil Soot Soil Pollutants Phaeozem Leaching (agriculture) Soil Microbiology Triticum Herbicides technology industry and agriculture food and beverages Sorption Agriculture General Medicine respiratory system Pollution Biodegradation Environmental chemistry Agronomy Soil water Adsorption |
| Zdroj: | Bulletin of Environmental Contamination and Toxicology. 78:345-348 |
| ISSN: | 1432-0800 0007-4861 |
| DOI: | 10.1007/s00128-007-9023-z |
| Popis: | Burning of crop residues in the fields is a routine post-harvest practice and results in accumulation of ashes in soils. Recent studies have shown that the ashes may significantly contribute to the herbicide sorption in soils. This study was conducted to evaluate the potential role of wheat ash in immobilization of anionic herbicide MCPA in soils. The results showed that wheat ash is highly effective sorbent for herbicide MCPA. Amendment of Fluvi-Gleyic Phaeozem and Eutric Regosol with 1% wheat ash caused a 8-fold and 16-fold increase in MCPA sorption, respectively. Desorption of MCPA was also influenced by wheat ash in soils. The addition of wheat ash to both soils increased the resistant fraction to desorption up to 80%. Generally, the field burning of crop residues appears to increase the sorption of pesticides in agricultural soils and decrease their leaching. |
| Databáze: | OpenAIRE |
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