Abstract: A plant activator which is strip-shaped, and includes a silicon layer provided on one or both surfaces of the base sheet or within a base sheet and containing Si or SiO.sub.X (0<X <2) as a main component, wherein the silicon layer is provided by vapor-deposition or bonded by an adhesive. The plant activator is hung on or near the plants.
Type:
Grant
Filed:
January 16, 1998
Date of Patent:
September 14, 1999
Assignees:
Kuniaki Takamatsu, Nariko Ohara, Yoshiaki Ito