: SORPTION OF BENZOBICYCLON IN SOILS OF RICE GROWING REGIONS OF ARKANSAS
Arkansas is the United States’ leading rice producer, accounting for over 50% of the rice produced in 2014. Over 40 counties in Arkansas cumulatively grow approximately 1.2 million acres of rice a year. Common weeds in rice production systems develop resistance to currently available herbicides over time. Reduced yields due to the new resistance of weeds prompted the U.S. release of benzobicyclon, a rice herbicide that has been used for decades in Asia. Benzobicyclon isn’t yet available to consumers in Arkansas and is under review by the EPA. Little is known about the fate and transport of benzobicyclon in Arkansas agricultural systems. This study used equilibration experiments to examine benzobicyclon and benzobicyclon hydrolysate (BH) sorption in soils with varying properties used to grow rice in Arkansas. The broad question addressed over the course of this experiment is, “Will the recommended use of benzobicyclon be uniform across the agricultural lands of Arkansas or will the recommendation vary according to soil properties?” Specifically, research determined how soil properties influence the sorption characteristics of benzobicyclon hydrolysate (BH), the active metabolite.
Jessica Clarke (Primary Presenter/Author), Fort Valley State University, firstname.lastname@example.org;