2023 年 94 巻 4 号 p. 251-256
The objective of this study is to discuss the issues of grain corn production for paddy farms in warm-temperature regions of Japan. As a result of comparing the two case analyses with the advanced cases in Hokkaido and Tohoku, the main issue was the high production cost due to the low productivity. Therefore, it is necessary to consider measures to improve grain corn productivity, such as expanding the production scale.