Organo-Mineral Interactions Involved in Herbicide Sorption on Soil Amended with Peats of Different Maturity Degree

The sorption of three herbicides (alachlor, atrazine and linuron) on samples from six peats progressive degree maturity (fibric, hemic or sapric types) soil (dryland agricultural Calcic Luvisol amended with the peats) was determined. extent examined in terms peat (up to 220 analytical descriptors material). In most cases, a enhancement effect observed peat–soil system compared sum alone, i.e., positive interaction leading an increase matrix reactive sites. characteristics humic bitumen subfractions were useful forecasting performance. This case for high molecular weight hydrophobic fractions, alkyl domain substances oxygen-containing groups. Correspondence analysis illustrated how different played distinct role herbicide–peat soil–peat–herbicide system. former system, there relevant bearing parameters indicating low maturity, whereas second mainly explained by colloidal properties, including concentration base saturation functional