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This research aims to study the chemical using in rice production of Nong-Sue district, Pathum Thani province. The qualitative method was used by in-depth interview with 15 farmers by using snowball technique of sampling. Data were collected in the month of January 2016 and analyzed. The obtained data were analyzed by using content analysis. This qualitative study was using key-informant for data collection. The results found that farmers in Nong-Sue district applied a lot of chemical in growing rice such as 1) Chemical fertilizers, 2) Pesticides, 3) Herbicides, 4) Plant diseases protection chemicals, 5) Plant growth and
promotion chemicals. The reasons for them using these chemical were because it was easy, convenient and had high yield to apply in rice production, and the rice was very green and healthy. In addition, the farmers had good knowledge and understanding regarding the process of the application of chemicals, such as,mixing, storage and self-protection during and after application of the chemicals.
mixing, storage and self-protection during and after application of the chemicals.