34 resultados para Aqüífero Guarani
em Repositório Alice (Acesso Livre à Informação Científica da Embrapa / Repository Open Access to Scientific Information from Embrapa)
Resumo:
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.
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2008
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2008
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Parte 1: Água subterrânea no Brasil - o Aqüífero Guarani. Parte 2: Uso agrícola das áreas de afloramento do Aqüífero Guarani no Brasil e ipactos na qualidade da água subterrânea. Parte 3: Ações de gestão ambiental para as áreas de afloramento do Aqüífero Guarani no Brasil.
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2008
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2008
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2008
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2008
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2008
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2008
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2008
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2008
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2008
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2008
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2008