Fertilizer trials involving Osmocote and minor element formulations were conducted in 1979 in British Columbia to determine appropriate formulation, the rates to be used, and how long the formulations lasted in their sawdust:peat mixes.

To view the article, click on the link attachment.

July-August 1980
Vol.4, Issue 4
Pages 6-8

B.R. Greenwell
Nursery Horticulturist
B.C. Ministry of Agriculture
17720-57 Avenue, Surrey, B.C. V3S 4P9 

Attachment: 
PDF icon Osmocote & Minor Element Formulations & Rates for Growing Nursery Stock in Containers