Potassium fertiliser : effects of different rates, types of application on height growth of sitka spruce on deep peat /
Dutch, J. C.
Taylor, C. M. A.
Worrell, Richard.
Great Britain.Forestry Commission.Research Division.
Farnham : Forestry Commission, Research Division,
1990.
Caption title.
Potassium fertilizers
Sitka spruce
Sitka spruce