Growth Response of a Boreal Black Spruce Stand to Fertilizer Treatments
Authors: Foster, Neil W.; Morrison, Ian K.; Swan, H. S. D.
Source: Northern Journal of Applied Forestry, Volume 3, Number 4, 1 December 1986 , pp. 142-144(3)
Publisher: Society of American Foresters
Abstract:Results are reported for a fertilizer field trial with nitrogen (N), phosphorus (P), and potassium (K) fertilizers in a 100-yr-old black spruce stand in the Lake Nipigon region of northern Ontario. A comparison of four levels of N (0, 112, 224, and 336 kg/ha) revealed significant effects (p = .05) of treatment on diameter growth. In a comparison of N (112 and 224 kg/ha) in combination with K and PK (74 and 93 kg/ha, respectively) the volume growth of fertilized trees, at the end of 5 and 10 years, was generally greater than that of controls, but not significantly greater (p = .05). The best 10- year growth response was to 224 kg N/ha, which produced 7.4 m³/ha of extra wood over controls. No additional growth was realized when K and PK were added with N. North. J. Appl. For. 3:142-144, Dec. 1986.
Document Type: Journal article
Publication date: 1986-12-01
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