Bayer Aktiengesellschaft

Claus Hentschel

Wulf Von Bonin

Manfred Dahm

Dietmar Schapel

Harold Heller

Dietrich Hardt

Joachim Gehring

Karl Martin

Leonard Volckaert

A fertilizer for the long term and uniform supply of plants with nutrient ions comprising a covalently crosslinked hydrogel in which are embedded ion exchangers which are laden with plant nutrients; furthermore a process for the long term and uniform supply of plants with nutrient ions wherein a covalently crosslinked hydrogel in which are embedded ion exchangers which are laden with plant nutrients is applied to the plants or their environment.

Fertilizers

A plant pot for hydrocultures comprising an annular central compartment in the bottom and a container for fertilizer arranged in said compartment.

Hydroculture plant pot with an inserted container for receiving a

The rot-resistant plant support which is aesthetically pleasing and can be inexpensively produced consists of a rod section and a plastics material which can be colored. The interior of the rod is finely porous while the surface zone has bark-like protuberances. The plant supports are manufactured by extrusion at processing temperatures in the tool adjusted to between 5 and 30.degree. C. above the temperatures conventionally employed for extruding foams with a smooth surface from the same thermoplasts.

Rod for supporting plants and process for its manufacture

Growing community of inventors

Cologne, Germany

Claus Hentschel