Pinus sylvestris IUFRO - Adal - Pinus sylvestris fertilized at 45 years, inc. 2-3.5 cubic metres/ha/yr - now 51 years old

Pinus sylvestris IUFRO - Adal - PNSY fertilized at 45 years, now 51 years

Pinus sylvestris IUFRO - Solena - Pinus sylvestris control

Pinus sylvestris IUFRO - Solena - precommercial, thinned at 13 years, now 34 years old

Pinus sylvestris IUFRO tour - Pinus sylvestris fertilized at 99 years, now 130 years

Pinus sylvestris IUFRO tour - PNSY 99 yr., vol. 133 cubic metres/ha - fertilized 1945, thinned 1956 & every 6 years since, age now 130 yr.

Pinus sylvestris IUFRO tour - PNsy fertilized 1945, and every 6 years since, age now 130 yr.

Pinus sylvestris IUFRO Tour - cross-section of PNsy now 130 years old

Pinus sylvestris IUFRO tour - upper bole

Pinus sylvestris IUFRO tour - crowns of 130 yr trees