Sulfosulfuron, Residues, HPLC, Soil, Wheat grains and straw
Persistence of sulfosulfuron applied at 25 g/ha in rabi 2006-07 in wheat crop was determined in soil, wheat grains and straw. Soil samples treated with sulfosulfuron were collected at 1, 15, 30, 60, 90 and 120 days after herbicide application and were analyzed for herbicide residues. Wheat grains and straw were sampled at the time of harvest. HPLC coupled with PDA detector was used to detect sulfosulfuron residues. Sulfosulfuron degraded rapidly in soil and was not detected in soil, wheat grains and straw at harvest. Half-life of sulfosulfuron was found 14.40 days.