植木 美希

<p>The objective of this study is to investigate relationships between environmentally friendly farming practices and farm size through a case study of the rice farming certification system and the 13 farms in Sado City. The main results are as follows. First, it seems that larger farms have an inclination to practice certificated farming and that the area a farm has has been annually increasing. Second, however, thus positive correlation does not exist for non-chemical farming, owing to weeding labor. Third, each farm practices either labor saving or mass input of the labor, depending on their form.</p>