Browse Items (13651 total)

Picea abies - 1938 provenance trial, seed sown 1940. Marked tree for controlled x’s. 24 years of age, Denmark

PIa Sogsvaen Park - planted age class

PIa Sogsvaen Park - planted PIa - note age class groups

PIa Sogsvaen Park - planted PIa

IUFRO - Veldre - hard fertilized @ $38.50/ac

IUFRO - Veldre - hard fertilized @ $38.50/ac

PIa IUFRO - Veldre - hard fertilized - NH4NO3 - at $38.50/ac

IUFRO - Veldre - fertilization of old stands

IUFRO - Veldre - 80 - 100-year-old PIa - note crown shape

IUFRO - Veldre - 80 - 100-year-old PIa - note crown shape
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