Patents Assigned to Soil Conservation Institute Co., Ltd.
  • Horticultural medium consisting essentially of natural zeolite particles
    Patent number: 5106405
    Abstract: This invention is a mixed horticultural medium consisting essentially of natural zeolite particles, which has a unique property of capturing ammonium ions, and has a high nitrogen content as compared with conventionally available horticultural media thereby providing a high germentation percentage and having a nitrogen supply potential to meet requirements of plants with the aid of microorganisms in the soil.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: April 21, 1992
    Assignee: Soil Conservation Institute Co., Ltd.
    Inventor: Itsuo Goto