Erik Björkman

1912

• Distribution and balance of N¹⁵ labelled fertilizer nitrogen applied to young pine trees (Pinus silvestris L.)
• Studier över snöskyttesvampens (Phacidium infestans Karst.)
• Studies of root competition in a poor pine forest by supply of labelled nitrogen and phosphorus
• The use of decayed wood from some conifers and broadleaf trees for chemical pulping purposes
• Über die Bedingungen der Mykorrhizabildung bei Kiefer und Fichte