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Conifer Seedling Mineral Nutrition
R. Van Den Driessche · CRC Press
290 sayfa · 1990
Nutrition / Effect of minerals on / Conifers / Fertilizers / Seedlings
Nutrient deficiency symptoms in container-grown Douglas-fir and white spruce seedlings
R. Van den Driessche · Canada/BC Economic & Regional Development Agreement
29 sayfa · 1989
Container Seedlings / Deficiency diseases in plants / Diseases and pests / Douglas fir / Forest nurseries
Tissue nutrient concentrations of Douglas fir and Sitka spruce in sand cultures
R. Van den Driessche · Research Division, British Columbia Forest Service
42 sayfa · 1969
Conifers / Douglas fir / Fertilizers / Foliar diagnosis / Sitka spruce