Comportamento do herbicida hexazinone em área de recarga do Aqüífero Guarani cultivada com cana-de-açúcar.

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Author(s): QUEIROZ, S. C. do N. de; FERRACINI, V. L.; GOMES, M. A. F.; ROSA, M. A.

Summary: THE BEHAVIOR OF HEXAZINONE HERBICIDE IN RECHARGE ZONE OF GUARANI AQUIFER WITH SUGARCANE CULTIVATED AREA. São Paulo state (Brazil) has an important area of sugarcane production, mainly for obtaining alcohol and sugar, where there is an intensive use of pesticides. An important recharge zone of Guarani aquifer, with supplies water for the local population, is located at Ribeirão Preto city, so the local behavior of pesticides must be investigated. The GUS index was obtained by using the paramenters Koc and half-life for hezazinone herbicide, determinated in representative soil of this region. This study has demonstrated that there is potential risks of hexazinone leaching to ground water, indicating that this herbicide must be monitored in ground water.

Publication year: 2009

Types of publication: Journal article

Unit: Embrapa Environment

Keywords: Cana-de-açúcar, Herbicida

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