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Open Access Gold as soon as Publ. Version/Full Text is submitted to ZB.
Impact of soil water regime on degradation and plant uptake behaviour of the herbicide isoproturon in different soil types.
Chemosphere 82, 1461-1467 (2011)
The environmental fate of the worldwide used herbicide isoproturon was studied in four different, undisturbed lysimeters in the temperate zone of Middle Europe. To exclude climatic effects due to location, soils were collected at different regions in southern Germany and analyzed at a lysimeter station under identical environmental conditions. (14)C-isoproturon mineralization varied between 2.59% and 57.95% in the different soils. Barley plants grown on these lysimeters accumulated (14)C-pesticide residues from soil in partially high amounts and emitted (14)CO(2) in an extent between 2.01% and 13.65% of the applied (14)C-pesticide. Plant uptake and (14)CO(2) emissions from plants were inversely linked to the mineralization of the pesticide in the various soils: High isoproturon mineralization in soil resulted in low plant uptake whereas low isoproturon mineralization in soil resulted in high uptake of isoproturon residues in crop plants and high (14)CO(2) emission from plant surfaces. The soil water regime was identified as an essential factor that regulates degradation and plant uptake of isoproturon whereby the intensity of the impact of this factor is strongly dependent on the soil type.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Isoproturon; Lysimeter; Soil-plant-system; Water potential
ISSN (print) / ISBN
0045-6535
e-ISSN
1879-1298
Journal
Chemosphere
Quellenangaben
Volume: 82,
Issue: 10,
Pages: 1461-1467
Publisher
Elsevier
Publishing Place
Kidlington, Oxford
Reviewing status
Peer reviewed
Institute(s)
Institute of Soil Ecology (IBOE)