Kemchart Cheychom, Apisak Sindhuphak and Thanin Ratanaolarn
The objective of the research is to study patterns and problem water management for agriculture using participatory action research (PAR). Data collection was conducted by entering the area for a survey and interviewing sample groups of farmers from 10 districts in Chanthaburi, Thailand. The sample group consisted of five farmers from each district, constituting 50 farmers. The interview results and statistical data analysis described in detail. The result can be concluded that the farmers mostly encounter water insufficiency and lack of knowledge about the irrigation system. The agricultural costs will increase in terms of the investment of laying out the irrigation system or excessive water usage that is not compatible with the water requirement of the plant. Therefore, the water management system for agriculture should be managed easily with technology, which gives water economically and precisely then farmers can know when to apply the water.