Seasonal changes in leaf nitrogen concentration of Alnus glutinosa, A. rugosa, and A. serrulata

by 71432 GERTNER, G.Z., 61469 DAWSON, J.O., 69553 FUNK, D.T., 67840 FITTON, R.R., 70897 Garret, H.E., 59709 Cox, G.S., 39486 (eds.), 20685 University of Missouri, (EUA), 32927 3. Central Hardwood Forest Conference, Missouri, (EUA), 1980