59 pages matching Sitka spruce in this book
Results 1-3 of 59
What people are saying - Write a review
We haven't found any reviews in the usual places.
REVIEW OF THE YEARS WORK by D H Phillips Chief Research
WORK CARRIED OUT BY FORESTRY COMMISSION
19 other sections not shown
Alice Holt aphid application assessed atrazine B.Sc bark beech Britain cent Commn conﬁrmed conifers Corsican pine crops damage deﬁned density disease Douglas ﬁr drainage drained East Scotland effect European larch experimental experiments fertiliser ﬁeld ﬁre ﬁrst ﬁve ﬂowering foliage Forestry Commission further gauges germination gley grade Grand ﬁr height growth herbicide HMSO increased Kennington Laboratory Leyland cypress Lodgepole pine Lond machine method Moray needle nitrogen Northern Research Station Norway spruce nursery Oﬂicer operations peat phosphate Phytophthora planning planting plots plough produced programme provenances rainfall Report for 1970 Research Division Research Foresters response root samples Scotland Scotland Conservancy Scots pine Section seed shoot showed signiﬁcant Silviculture Sitka spruce sodium sodium alginate soil species speciﬁc spraying survey survival Table techniques temperature tested thinning timber tractor treatment trees trials tubed seedling Wales Wareham Western hemlock Western red cedar wood year’s yield