A demonstration trial on a backlog site near Prince George, initiated by Lakeland Mills Ltd., has shown that plowing can be a successful form of site preparation for interior spruce regeneration. The site is seasonally droughty and has dense, shrubby, competing vegetation. Seedlings planted following light discing were frequently damaged by growing-season frost. Light discing exposed little mineral soil. Planting large stock without mechanical site treatment was not a viable option on this site because browsing by hares devastated seedlings in untreated plots. Aerial herbicide spraying did not reduce vegetation cover sufficiently to afford protection from browsing. Application of slow release fertilizer at the time of planting was ineffective in accelerating seedling growth.
FRDA Research Report 143 (481 KB)
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Updated July 24, 2015