Fertilizer trial, N @ 1200lb/ac applied in June as ammonium sulphate. White spruce, 1+0, fertilization.

Fertilizer trial, N @ 600 lb/ac applied twice, in June and in July as ammonium sulphate. White spruce, 1+0, fertilization.

Snowfall over an experimental site

Aerial view of land uses and cultivation in rural Kenya

Cottonwood hybrids at 1 year ready for propagation. Orono Nursery. N.B. UT forestry class.

Field tour by KAA, KEY (Bob Killam + ?), Mac Squires, Martin Kaiser and Bill Smith

Field tour by KAA, KEY (Bob Killam + ?) Mac Squires, Bill Smith, KAA

Fifty acres clearcut, two yrs after cutting N.B. sprouts. Person is Prof. R.J. Day. Photo Mike Meagher.

Graph on seedling dry weight (mg) through time (days) in Japanese larch (fertilized vs unfertilized)

Nitrogen mg per 1000 seedlings (graph)