Patents Assigned to Ecoval Technologies Inc.
  • Patent number: 5478373
    Abstract: Trees are fertilized with natural ingredients commonly used in the feed industry to prevent, combat and reverse die-back damage in trees. The fertilizer composition employed preferably uses feather meal or blood meal, and bone meal, along with sulfate of potash or sulfate of potash magnesia to provide a ratio of N:P:K of about 4:4:8 wt. %.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: December 26, 1995
    Assignee: Ecoval Technologies Inc.
    Inventor: John S. Lojek