Accelerating Early Height Growth of White Spruce
Abstract:The effects of nitrogen, soil temperature and soil moisture were tested on the height growth of field-planted white spruce seedlings. Soil temperature and moisture were regulated by choice of mulch or living ground cover. Moist soil produced better growth than dry soil (covered with dense sod). After three years, seedlings mulched with salt marsh hay had grown nearly 70 percent more than seedlings in sod. Soil temperature had little effect on height growth and fertilization did not increase it appreciably, but among trees of average height growth in 1963, it did produce better branching. After three years, mortality of spruce seedlings in sod was six times that of seedlings where competition was eliminated.
Document Type: Journal Article
Affiliations: Staff of the Connecticut Agric. Expt. Sta., New Haven
Publication date: September 1, 1965
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