循環型社会形成に向けた有機液肥の水田利用の可能性 : 堆肥市場と有機液肥市場との比較研究

概要

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Three issues are pointed out clearly in this paper. The first issue refers to the method and strategy and its related problems of reusing organic material for farmland as it is shown by Biomass Nippon. While the second issue based on a random survey points out the limits of organic material for reuse as manure in farmland, the third one emphasizes its potential as organic liquid fertilizer in paddy fields, based on a project on circular use of organic material run in Oki Town, Fukuoka Prefecture. The Biomass Nippon project regards the reuse as manure as the main method to apply organic material in farmland. However, the primer problem occurring for the agricultural sector in practice is related to labor for dispersing the manure. Because manure, on the one hand, has already been dispersed as a possible reuse of organic material and labor been used it is believed to be difficult to additionally expand the reuse of manure. However, on the other hand spraying liquid organic fertilizer by using the irrigation system is regarded as being less labor intensive when comparing with the dispersion of manure in paddy field farming. Therefore, the application of organic liquid fertilizer is considered one appropriate method and strategy for reusing organic material in farmland.
2005-01-30