Glyphosate effect on soil biochemical properties under conservation tillage

Under our experimental conditions (Entisol, Mediterranean condition, rainfed agriculture, wheat-sunflower-fodder pea rotation), an interval of at least 30 days between glyphosate application and soil sampling should be adopted as a standard to avoid data misinterpretation. Differences in glyphosate metabolism are expected for different conditions and crops and should be evaluated case by case.