INFLUENCE OF ADSORPTION-DESORPTION PHENOMENA ON PESTICIDE RUNOFF MEASURED UNDER CONTROLLED CONDITIONS

Authors
DUR JC GOUY V CALVET R BELAMIE R CHAPLAIN V
Citation
Jc. Dur et al., INFLUENCE OF ADSORPTION-DESORPTION PHENOMENA ON PESTICIDE RUNOFF MEASURED UNDER CONTROLLED CONDITIONS, Comptes rendus de l'Academie des sciences. Serie 2. Sciences de la terre et des planetes, 327(6), 1998, pp. 405-411
Citations number
19
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Comptes rendus de l'Academie des sciences. Serie 2. Sciences de la terre et des planetes → ACNP
ISSN journal
12518050
Volume
327
Issue
6
Year of publication
1998
Pages
405 - 411
Database
ISI
SICI code
1251-8050(1998)327:6<405:IOAPOP>2.0.ZU;2-E
Abstract
The surface runoff of isoproturon and diuron is studied using simulate d rainfall applied to small 1 m(2) plots of soil. Isoproturon was less adsorbed by soil than diuron and eroded particles did not contribute to the pesticide transfer. A model is then proposed to describe such t ransfer of pesticide. This model introduces (i) a dilution factor a, w hich seems proportional to the concentration of the soi i solution bef ore applying the artificial rain and (ii) an extraction retardation fa ctor b, which is inversely proportional to the partition coefficient b etween the solid and liquid phase of soil. ((C) Academie des sciences / Elsevier, Paris.).