Aspectos sanitários da cultura da alface americana irrigada com águas receptoras de efluentes urbanos.

Abstract

The purpose of this experiment was to evaluate the sanitary conditions of growing lettuce (Lactuca sativa L.) using localized drip irrigation with water receiving urban effluents. The findings indicated contamination of soil and plants by fecal coliforms, although Salmonella spp and evolutive forms of human parasites were not detected in plant, soil and water samples. The arrangement of the drip hoses on the beds and disinfection with chloride did not affect the amount of microorganisms in the irrigation water.