PROBLEM TO BE SOLVED: To provide an artificial bank for growing seaweeds enabling easy adhesion of the root and seed of seaweed, free from the release of undesirable components even after the use over a long period and capable of continuously supplying iron and other nutrition components necessary for the growth of seaweeds. SOLUTION: A combustible woody material is kneaded into clay at a specific ratio and the kneaded mixture of the woody material and the clay is formed to a prescribed form and burned at a high temperature in an oven to obtain the objective seaweed growing artificial bank consisting of a porous formed material 1 having pores formed by the burning or carbonization of the woody material and enabling the rooting of the seaweed. A nutrition agent 2 necessary for the growth of seaweed is filled, embedded or impregnated in the porous formed material 1. Granular or bulky ceramic material is added to the kneaded mixture of the clay and the woody material and the mixture is formed and burned to obtain the artificial bank.
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