In this study, we interviewed people who introduced the “Ukiraku” method of cultivation to clarify the introduction factors for this method. We observed that people staying in the neighborhood tend to promote the introduction of technology. However, restraining factors of green vegetable cultivation using this technology need to considered. First is the management policy. Second, items for cultivation are limited in number. Third, cultivating green vegetables requires sales channels and extensive preparations for harvest. Compared with the similar kind of technology used in paddy rice seedling cultivation in pooled nursery, the cost of equipment is higher when using the Ukiraku method. However, the fact that land leveling and watering works can be reduced and the user’s re-invention of this method can promote Ukiraku.
