Hirose Co., Ltd.

Mitsuru Hirose

A method for growing ornamental plants by hydroponic cultivation, includes the steps of arranging a piece of a tree in a water tank, adhering support members to the tree, the support members being water permeable which are free to deform, placing plants on the support members, the roots of the plants being integrated with the soil, and supplying water to the support members so as to implement hydroponic cultivation of the plants on the tree.

Method for growing ornamental plants by hydroponic cultivation and an apparatus therefor

Bottom sand for growing aquatic plants containing a granular sinter consisting essentially of volcanic ash and having a bonding strength to collapse when a pressure of 2.5 kg/cm or above is applied on a 1.0 cm thick layer. This bottom sand permits good filtration of water and satisfactory growing of aquatic plants. Aquariums using such bottom sand not only purify the water but also assures satisfactory growth of aquatic plants placed in the aquariums.

Bottom sand for growing aquatic plants and aquariums for growing aquatic plants using bottom sand

It has been known that water having a pH value of 5.5 to 7.5 is suited for the rearing of fresh-water fish and hydroponic cultivation of plants. Bottom soils or filtering media prepared by mixing carbonates of alkali metals or alkali-earth metals with volcano-ash-base soils and sintering the mixture into granules. When used in water tanks or reservoirs for fish rearing or hydroponic cultivation, the bottom soils or filtering media thus prepared provide favorable environments for such rearing and cultivation.

Bottom soils and filtering media for rearing fresh-water fish or hydroponically cultivated plants and water tanks using such bottom soils and filtering media

Growing community of inventors

Chiba, Japan

Mitsuru Hirose