Effects of site preparation (cultivation + simazine) on right (large trees) and no site preparation on left (small trees). Coulson Tract, SW Ontario.

Egedal 6-row transplanter in white spruce n.b. end of row (4 rows) and protection for workers. Transplanting, white spruce, 2+1.

Egedal fertilizer applicator and cultivator. Fertilizer equipment.

Egedal fertilizer applicator and cultivator. Fertilizer equipment.

RV campsite for visitors to Elk Island National Park

Agricultural fields at Elmvale

Insect damage on pine tree needles

A field experiment on tree growth

Field experiment on fertilizers effects on tree growth

Field experiment on fertilizers effects on tree growth