Published Paper Details:

Bali is known as one of the world's tourism destinations. This condition must always be preserved. One of the supports that must exist for sustainability is the availability of adequate food, both in quantity and quality. Good quality food is food that is not contaminated or often called organic food. Gianyar regency is one of the regencies in Bali, is one of the tourist destinations visited by many tourists. One of the watersheds in Gianyar regency is Pakerisan watershed. It is a very wide area for agricultural cultivation from upstream to downstream, which is considered as the source of the closest food supply to both the needs of residents and tourists. The dominant crops cultivated in paddy fields are rice and palawija crops. It is expected that food from this cultivation is organic food. The occurrence of pollution in crops can be caused by the use of chemical fertilizers, pesticides and also as a result of waste disposal to the river. The residue of chemical fertilizers, pesticides and wastes will flow from upstream to downstream, resulting the most potentially polluted water resources are in the downstream area. This study aims to study the potential of water resources for the development of organic farming systems in the downstream area of Pakerisan watershed. This research is a field research and laboratory research. Research indicates that the potential of irrigation water in the downstream area of Pakerisan watershed (Medahan irrigation area), in terms of water availability and heavy metal content, suitable for the development of organic agriculture, however, it is not appropriate in terms of carbonate content.