EFFECT OF PESTICIDE MOLECULES ON THE PHYSICOCHEMICAL PROPERTIES OF SOIL CULTIVATED BY BRASSICA NAPUS RAPESEED (FLOWERING STAGE AND ROSETTE STAGE)

This study examines the impact of pesticide treatments on soil properties at two growth stages of rapeseed (rosette and flowering).Results show a significant reduction in organic carbon content in treated plots, primarily due to increased mineralization of organic matter.An increase in assimilable phosphorus was observed, linked to pesticide-induced nutrient mineralization.Soil acidification was noted, particularly in treated soils, likely due to organic acid release and root exudation.At the flowering stage, a decrease in phosphorus was observed, suggesting increased uptake by plants.The statistical study showed that during both growth periods, the German variety SY GLORIETTA exhibited greater resistance to pesticide treatments.The study highlights the complex interactions between pesticides, soil nutrients, and plant growth, with significant effects on soil fertility and pH dynamics.