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Published online by Cambridge University Press: 12 June 2017
Simazine, 2-chloro-4, 6-bis (ethylamino)-s-triazine, can give excellent control of annual weeds in corn for most of the growing season. However, a number of workers have reported injury to susceptible crops the year following applications of four or five pounds of simazine per acre. The persistence of simazine is thus of considerable importance to the user who practices crop rotation. The purpose of this study was to investigate factors involved in the dissipation of simazine from the soil.