Maria Laura Turino Mattos,José Francisco da Silva Martins,Cley Martins Donizetti Nunes, Embrapa Temperate Agriculture, Recursos Naturais, maria.laura@cpact.embrapa.br
The monitoring of residues of pesticides in surface waters and groundwaters deserves featured rice regions of Rio Grande do Sul (RS), Brazil. The State is rich in springs of fresh water (Lakes, ponds, streams, rivers...) that, in addition to meet the demand for irrigation of rice paddies, supplying urban areas. Moreover, it has points of reload of the Guarani aquifer as well as environmental protection areas where rice is practiced. In this context, this work sought to monitor the presence of pesticides in soil and water, in rice fields located in the municipalities of coastal plain and Plateau RS campaign, seeking to demonstrate the applicability of the process in the indication of the quality of water resources in agroecosystems where is practised integrated production of rice (PIA). Monitoring was conducted in the vintages 2006/07 and 2007/08, in pilot areas of rice companies, located in the municipalities of Mostardas, Alegrete, Uruguaiana and Itaqui.
Keywords: water, conservation, sustainability