FILLING SLURRY FOR PLANT CULTIVATION BASE

摘要

PROBLEM TO BE SOLVED: To obtain a filling slurry for a plant cultivation base, capable of retaining the water holding properties for a long period and suitable for sound growth of plants by dispersing short fibers such as organic ones in water and regulating the viscosity within a prescribed range. SOLUTION: This filling slurry for a plant cultivation base is used for filling a void part of a porous formed product applicable to greening of a slope, the roof, a wall surface, etc., and is a slurry obtained by dispersing organic short fibers such as peat moss or inorganic fibers such as stag fibers or a powder in water (at a concentration of preferably 1-50 wt.% expressed in terms of the solid material). The slurry has a passage time of 500 mL according to the measurement of the funnel viscosity within the range of 20-45 sec. The short fibers preferably comprise >=5 wt.% fibers having the short fiber length of >=1/3 of the void average diameter of the porous formed product, >=20 wt.% fibers having the short fiber length within the range of (1/12) to (1/6) of the void average diameter and have the average individual diameter of the short fibers within the range of 100μm to (1/2) of the void average diameter according to a laser scattering type grain size measurement in the short fibers and the powder preferably has the powder maximal diameter of <=1/4 of the void average diameter.