Plant cultivation substrate and method for manufacturing plant cultivation substrate

The plant cultivation substrate with urethane chips, binder, and root guide holes addresses the issue of plant stability and growth by enabling deep root penetration and efficient fertilizer distribution, enhancing plant growth and structural strength.

JP2026111205APending Publication Date: 2026-07-03HAMAGUCHI URETHANE CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
HAMAGUCHI URETHANE CO LTD
Filing Date
2024-12-23
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing plant cultivation substrates made of polyurethane foam struggle with plants falling over and limited root penetration, as roots cannot grow deep into the substrate, and the growth is hindered by the exposure of fertilizer components on the surface.

Method used

A plant cultivation substrate comprising urethane chips joined by a binder with air gaps and incorporating a filler material containing fertilizer components, featuring root guide holes to guide roots deep into the substrate, ensuring the fertilizer is distributed efficiently and the substrate is structurally strong.

Benefits of technology

The substrate allows roots to extend deeply, preventing plants from falling over and promoting growth by distributing fertilizer components effectively, while maintaining structural integrity and flexibility in use.

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Abstract

The present invention provides a plant cultivation substrate and a method for manufacturing the plant cultivation substrate that can prevent grown plants from falling over. [Solution] The plant cultivation base 10 comprises a plurality of urethane chips 12, a filler 14 having fertilizer components fixed to the urethane chips 12, a binder 16 that joins the plurality of urethane chips 12 together while ensuring air gaps Q between them, and a plurality of root guide holes 20. The manufacturing method of the plant cultivation base 10 comprises a urethane chip preparation step S11 in which polyurethane foam is cut to obtain a plurality of urethane chips 12, a mixing step S12 in which the plurality of urethane chips 12, the filler 14 and the binder 16 are mixed, an assembly step S13 in which the plurality of urethane chips 12 and the filler 14 are joined together with the binder 16 while ensuring air gaps Q between the plurality of urethane chips 12 to obtain an aggregate 18, and a drilling step S14 in which a plurality of root guide holes 20 for guiding the roots of a plant K are formed from the surface 18a of the aggregate 18 toward the interior.
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