Effectiveness of Carbaryl, Carbofuran and Metolachlor Retention in Soils under the Influence of Different Colloid

The affinity of different soil colloids to retain carbaryl, carbofuran and metolachlor in sandy loam from mineral, surface horizons was investigated. undisturbed samples soils amended with colloids—kaolinite (K), montmorillonite (Mt), illite (Il), goethite (G), humic acid (HA)—were mixed the pesticides for sorption–desorption studies. Their sorption magnitude pristine followed sequence > carbaryl carbofuran, being a better retarder than soil. biggest light observed addition HA (92.7%), Il (92.3%) Ge (87.5%), whereas it (52.3%). Metolachlor uptake significantly enhanced by 2:1 clays (Mt-85.0%, Il-69.4%), (73.3%) acids (75.4%). loamy capacity studied blocked natural organic matter potentially due formation organo-mineral complexes. (66.8%) most effective sorbent soil, Mt (55.1%) (40.3%) carbofuran. retained same extent all variants (75.8–83.6%) its desorption values were lowest. Carbofuran demonstrated greatest ability leach among chemicals.