Assessment of pesticide availability in soil fractions after the incorporation of winery-distillery vermicomposts

• Published in: Environmental pollution (1987) 2008-07, Vol.154 (2), p.330-337
• Main Authors: Fernández-Bayo, J.D., Romero, E., Schnitzler, F., Burauel, P.
• Format: Article
• Language: English
• Subjects: Adsorption; Agriculture; Agriculture, rearing and food industries wastes; Agronomy. Soil science and plant productions; Applied sciences; Beer; Biological and medical sciences; Biological and physicochemical properties of pollutants. Interaction in the soil; Carbon; Dissolved organic carbon; Diuron; Diuron - analysis; Earth sciences; Earth, ocean, space; Ecosystem; Engineering and environment geology. Geothermics; Environmental Monitoring - methods; Environmental Restoration and Remediation - methods; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Humic Substances; Industrial Waste; Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries; Particle Size; Pesticides - analysis; Physical fractionation; Pollution; Pollution, environment geology; Soil - analysis; Soil and sediments pollution; Soil Pollutants - analysis; Soil-plant relationships. Soil fertility. Fertilization. Amendments; Solubility; Sorption; Vermicompost; Wastes; Wine
• ISSN: 0269-7491; 1873-6424
• DOI: 10.1016/j.envpol.2007.10.002

The influence of two vermicomposts from winery and distillery wastes on the distribution of diuron in agricultural soil was studied. Physical soil fractionations at 0, 9, 27, 49 and 77 days, allowed the quantification of pesticide residues in different particle-size fractions, coarse waste (WF), sand-sized (SF), silt-sized (SiF), clay-sized (CF) and dissolved organic matter-sized fraction (DOM). The SiF made a greater contribution to the formation of non-extractable residues in unamended soil, but when vermicomposts were added, new sorption sites in WF appeared, being higher for the more humified vermicompost V2. The dissolved organic carbon (DOC) increased with the addition of vermicompost, but the concentration of the desorbed 14C-radiochemical did not increase. Non-significant increment was observed with time for the non-extractable fraction with amendments. Diuron was transformed in all samples, although less than 0.5% was mineralized. The main effect caused by vermicomposts was a reduction in the availability of diuron in soil. Winery vermicomposts as organic amendments to reduce pesticide pollution.