In this study, a nationwide survey of standard yield values stipulating a subsidy system for quantity payments for feed rice and rice flour, has been conducted. There are three main findings. First, 61% of the regional agricultural revitalization councils have standardized the standard yields in their respective regions, with an average value of 513.3 kg/10 a. Second, in some regions standard yield values have been set to multiple types, depending on local conditions. Third, a case study has revealed a regional approach to setting multiple standard yields, replacing the previous efforts of rice production adjustment.
