Persistence and degradation of metalaxyl, mancozeb fungicides and its metabolite ethylenethiourea in soils.

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dc.contributor.authorHanumantharaju, T Hen_US
dc.contributor.authorAwasthi, M Den_US
dc.date.accessioned2004-10-03en_US
dc.date.accessioned2009-06-02T05:07:40Z
dc.date.available2004-10-03en_US
dc.date.available2009-06-02T05:07:40Z
dc.date.issued2004-10-03en_US
dc.description.abstractThe degradation pattern of metalaxyl, mancozeb and its metabolite ethylenethiourea (ETU) residues indicated a close correspondence to first order exponential degradation kinetics in soils. Degradation of fungicides in soils was predominantly biological as well as chemical in nature. Slower degradation ofmetalaxyl was noticed in the soils and their half-life values were higher than mancozeb and ETU as evident by wide range of half-life values from 41.24 to 165.11 days. In case of metalaxyl, Hiriyur soil was found to be superior in degrading the metalaxyl. Lower persistence of mancozeb and ETU was observed in soils resulting in rapid rate of degradation at smaller half-life values as compared to metalaxyl indicating the faster degradation of mancozeb and ETU. In mancozeb applied soils, the ETU formation was increased up to 30 days of incubation and thereafter it declined. Amongsoils, degradation of either mancozeb or ETU is not influenced by soil types. However, mancozeb persistence was higher in Hiriyur soils than Chettalli and Bangalore soils.en_US
dc.description.affiliationDept of Soil Science & Agril, Chemistry, College of Agriculture, UAS(B), GKVK, Bangalore, Karnataka, India.en_US
dc.identifier.citationHanumantharaju TH, Awasthi MD. Persistence and degradation of metalaxyl, mancozeb fungicides and its metabolite ethylenethiourea in soils. Journal of Environmental Science & Engineering. 2004 Oct; 46(4): 312-21en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/114027
dc.language.isoengen_US
dc.source.urihttps://www.neeri.res.in/jese.htmlen_US
dc.subject.meshAgricultureen_US
dc.subject.meshAlanine --analogs & derivativesen_US
dc.subject.meshBiodegradation, Environmentalen_US
dc.subject.meshEthylenethiourea --chemistryen_US
dc.subject.meshFungicides, Industrial --chemistryen_US
dc.subject.meshHumansen_US
dc.subject.meshManeb --chemistryen_US
dc.subject.meshSoil Pollutantsen_US
dc.subject.meshZineb --chemistryen_US
dc.titlePersistence and degradation of metalaxyl, mancozeb fungicides and its metabolite ethylenethiourea in soils.en_US
dc.typeJournal Articleen_US
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