GROWTH OF LYTHRUM ANCEPS AND CYPERUS ALTERNIFOLIUS L. BY HYDROPONICS USING POROUS CONCRETE PLANTING BASE

Abstract

To contribute to the development of a water purification system that uses porous concrete （PoC） and water-extracted plants together, as a first step, experimental investigations were conducted on the growth of the water-extracted plants planted in PoC by hydroponics. As the water-extracted plants, Lythrum anceps and Cyperus alternifolius L., which are considered to be suitable species in terms of water purification, were adopted in this study. We produced PoC with reduced alkaline elution by carbonating its cement paste layer. As a result of the planting tests, it was confirmed that hydroponics of the above-mentioned water-extracted plants using the PoC planting base is sufficiently possible, although it is not as good as the culture soil.