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h stewart d swan
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The influence of gibberellic acid on the growth and development of three hybrid poplars
H. Stewart D. Swan · Pulp and Paper Research Institute of Canada
18 sayfa · 1961
Poplar / Gibberellic acid
The influence of nitrogen, phosphorus, potassium, and magnesium deficiencies on the growth and development of white spruce, black spruce, jack pine, and Western hemlock seedlings grown in a controlled environment
H. Stewart D. Swan · Pulp and Paper Research Institute of Canada
66 sayfa · 1960
Deficiency diseases in plants / Diseases and pests / Trees
The mineral nutrition of Canadian pulpwood species
H. Stewart D. Swan · Pulp and Paper Research Institute of Canada
Sayfa sayısı yok · 1960
Fertilization / Forest soils / Nutrition / Pulpwood crops / Timber
Intensive forest management practices in the southeastern United States
H. Stewart D. Swan · Canadian Pulp and Paper Association, Woodlands Section
47 sayfa · 1975
Forest management