Konferenzpaper

Jahr der Veröffentlichung: 1999

Seiten: 765-773

Zeitschrift: Mededelingen - Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen, Universiteit Gent

Bandnummer: 64

Heftnummer: 3b

Konferenz: 51st International Symposium on Crop Protection

Verlag: Universiteit Gent

Abstract: 

By means of a computerized microlysimeter, the movement and degradation of fenamiphos and atrazine were studied in non-disturbed Moroccan sandy soil columns from the atlantic coast. Within an analysis time of approximately 20 min and with a detection limit in the low ppb range, the HPLC-DAD system with gradient elution permitted separation and detection of atrazine and its major metabolites (desethylatrazine, desisopropylatrazine, and hydroxyatrazine). Fenamiphos and its two metabolites (fenamiphos sulfoxide and fenamiphos sulfone) were also detected. The analysis of the microlysimeter leachates, resulting in pesticide breakthrough curves, showed that the most important metabolite of atrazine is desethylatrazine. Atrazine and its degradation products seem to be mobile under the given lysimeter conditions, which are comparable to those found in Moroccan greenhouse cultures. Fenamiphos sulfoxide concentrations in the leachates were considerably higher than those of sulfone and fenamiphos. It is concluded that sandy Moroccan soils are subject to relatively strong leaching of the investigated pesticides.

Harvard-Zitierstil: El-Ouaghlidi, F., Düring, R. and Hummel, H. (1999) Leaching and degradation of fenamiphos and atrazine in non disturbed Moroccan sandy soil columns, Mededelingen - Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen, Universiteit Gent, 64(3b), pp. 765-773

APA-Zitierstil: El-Ouaghlidi, F., Düring, R., & Hummel, H. (1999). Leaching and degradation of fenamiphos and atrazine in non disturbed Moroccan sandy soil columns. Mededelingen - Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen, Universiteit Gent. 64(3b), 765-773.