To decrease abandoned bamboo stands，it is necessary to solve underlying issues such as disposal costs of thinned bamboos and shortage of manpower to manage the stands. To solve these issues, creating new manure made from the thinned bamboos is attempted. In this research，effect of bamboo powder manure on growth of soybean 'Wase-Edamame Hakucho' and the soil environment of the field was investigated. As a result, manuring bamboo powder had a possibility to increase plant height, yield, and exchangeable calcium and magnesium.