Mean seedling dry weights by treatments

Graph on relative growth rate over months (fertilizers vs control effects)

Graph on fertilizers uptake rate and its relation with Douglas fir growth rate over months

Nitrogen mg per 1000 seedlings (graph)

Graph on white spruce relative growth rate over time

Equations used by Dr. Ken Armson

Graph on the relation between fertilizers content and seedlings dry weight increase

Graph on nitrogen- mg per 1000 seedlings (white spruce)

Table on white spruce foliage nutrient concentration

Drawing of the difference on seedlings root length