Off-Field Movement and Dissipation of Soil-Incorporated Carbofuran from Three Commerical Rice Fields, and Potential Discharge in Agricultural Runoff Water

摘要

The California Department of Food and Agriculture, Environmental Hazards Assessment Program conducted a study of Carbofuran in rice fields. The results from the study indicate that runoff waters from rice and sugar beet fields are potential sources of Carbofuran found in agricultural drains and in the Sacramento River. Several of the major findings suggest that, of the two potential sources, runoff water discharged from rice fields contributes a much larger portion of carbofuran than runoff from sugar beet fields. The study and information from the literature suggest that the amount of carbofuran released into paddy water is decreased when carbofuran is incorporated into the soil.