Changes in soil microflora in response to repeated applications of some pesticides |
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| Institution: | 1. Kaunas University of Technology, Chemical Faculty of Technology, Department of Environmental Technologies, Radvilenu St. 19, LT-50254, Lithuania;2. Wetsus, European Center of Excellence for Sustainable Water Technology, Oostergoweg 9, P.O. Box 1113, 8900 CC Leeuwarden, The Netherlands;3. Wageningen University, Droevendaalsesteeg 4, 6708 PB Wageningen, The Netherlands;4. WLN, Rijksstraatweg 85, 9756 AD Glimmen, The Netherlands;5. Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden;1. Dipartimento di Ingegneria Civile, dell’Energia, dell’Ambiente e dei Materiali (DICEAM), Università“Mediterranea”, Reggio Calabria, Italy;2. Dipartimento di Ingegneria dell’Informazione, delle Infrastrutture e dell’Energia Sostenibile (DIIES), Università“Mediterranea”, Reggio Calabria, Italy;3. Dipartimento di Fisica (DF), Università della Calabria, Arcavacata di Rende, Italy;4. Istituto di Scienze e Tecnologie Molecolari (ISTM), Consiglio Nazionale delle Ricerche (CNR), Milano, Italy;5. Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra (MIFT), Università di Messina, Messina, Italy;6. Consorzio Interuniversitario per la Scienza e la Tecnologia dei Materiali (INSTM), Firenze, Italy;1. CHU Toulouse, Pôle Femme Mère Couple, Hôpital Paule de Viguier, 31059, Toulouse, France;2. University Paul Sabatier Toulouse III, 31330, Toulouse, France;3. CHU Toulouse, Pôle Femme Mère Couple, Hôpital Rangueil, 31059, Toulouse, France;1. Center for Lasers and Applications, IPEN-CNEN/SP, 05508-000, São Paulo, SP, Brazil;2. The Engineering, Modelling and Applied Social Science Department, UFABC, 09210-580, Santo André, SP, Brazil;3. Postgraduate Program in Biophotonics Applied to Health Sciences, UNINOVE, 01504-001, São Paulo, SP, Brazil;4. Dentistry School, UNINOVE, 01504-001, São Paulo, SP, Brazil;5. Department of Microbiology, ICB/USP, 05508-000, São Paulo, SP, Brazil;6. Department of Clinical Analysis, FCF/USP, 05508-000, São Paulo, SP, Brazil;1. Newcastle Institute for Energy and Resources, The University of Newcastle, Callaghan, NSW 2308, Australia;2. School of Engineering and Information Technology Murdoch University, Murdoch, WA 6150, Australia |
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| Abstract: | The effects of pesticides on soil microflora were studied on arable soils that had received repeated applications of carbofuran and carbosulfan (insecticides), iprodione and vinclozolin (fungicides), and MCPA, simazine and paraquat (herbicides). Carbofuran at single and 5-fold treatments did not show any detectable detrimental effects on soil microbial biomass, but single application of carbosulfan produced a significant biomass reduction. There were dramatic reductions in soil microbial biomass following vinclozolin application, and this was due to a reduction in fungal biomass; iprodione showed less obvious biomass trends. MCPA and simazine caused no detectable effects to the microflora, but repeated paraquat application significantly lowered soil microbial biomass (chiefly fungal biomass). The results indicate that there may be substantially different effects on soil biomass produced by single or repeated applications of pesticides. |
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