Subject
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Research
7
Roots (Botany)
1
Seed orchards
3
Seedlings
6
Seedlings, Container
6
Seeds
4
Serbian spruce
1
Sheep laurel
1
Silviculture
1
Site index (Forestry)
1
Site preparation (Forestry)
1
Spruce
4
Spruce budworm
2
Tamarack
1
Transplanting
1
Tree breeding
1
Tree farms
1
Tree planting
4
Trees
8
Urea as fertilizer
1
White spruce
8
Wood
1
black spruce
1