Rasberry (Rubus idaeus L. ) Competition Effects on Balsam Fir (Abies balsamea (L.) Mill.) Seedlings in Northern Maine
The effects of competition from raspberries on the growth and nutrient quality of the foliage of balsam fir seedlings were evaluated. Seedlings overtopped by raspberries were smaller than open-grown seedlings. Root collar diameters averaged 5.5 and 8.2 millimeters in the overtopped and open-grown seedlings, respectively. Foliar analysis revealed higher P (0.18 versus 0.16 percent) and lower K (0.59 versus 0.80 percent) concentrations in the open-grown seedlings than in the overtopped seedlings. Nutrient proportions in both groups of seedlings deviated from proposed optimum levels. The foliar analyses indicated K deficiencies in the open-grown seedlings and possible luxury consumption of Ca in both groups. Tree Planters' Notes 37(2):20-23; 1986.
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Author(s): Thomas R. Fox
Publication: Tree Planters' Notes - Volumes 37, Number 2 (1986)
Section: General
Volume: 37
Number: 2
