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Nutrient Dynamics and Growth Response in a Fertilized Black Spruce Stand1

1982; Wiley; Volume: 46; Issue: 1 Linguagem: Inglês

10.2136/sssaj1982.03615995004600010024x

1435-0661

M. K. Mahendrappa, P. O. Salonius,

Seedling growth and survival studies

Soil Science Society of America JournalVolume 46, Issue 1 p. 127-133 Division S-7—Forest and Range Soil Nutrient Dynamics and Growth Response in a Fertilized Black Spruce Stand† M. K. Mahendrappa, M. K. MahendrappaSearch for more papers by this authorP. O. Salonius, P. O. Salonius Research Scientists.Search for more papers by this author M. K. Mahendrappa, M. K. MahendrappaSearch for more papers by this authorP. O. Salonius, P. O. Salonius Research Scientists.Search for more papers by this author First published: 01 January 1982 https://doi.org/10.2136/sssaj1982.03615995004600010024xCitations: 19 ‡ Contribution from Dep. of the Environment, Canadian Forestry Service, P.O. Box 4000, Fredericton, N.B. E3B 5P7. Presented before Div. S-3, Soil Sci. Soc. Am., 6 Dec. 1978, Chicago. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract In 1968, a forest fertilization experiment was established in a black spruce (Picea mariana Mill. B.S.P.) stand in central New Brunswick. A factorial combination of three levels of nitrogen (N) in the form of urea and three levels of phosphorus (P) in the form of triple superphosphate were applied to duplicate circular plots. During the 10 years after fertilizer application, various components of the nitrogen cycle, organic matter transformations, and microbial activity were monitored in both field and laboratory using soil samples from the black spruce stand under study. Concurrent stand responses to fertilizer applications were also determined periodically. Application of nitrogen and phosphorus fertilizers increased the foliar N levels in all treated plots. Nitrogen levels in litterfall materials showed similar increases. Concentrations of nitrogen in litter needles from treated and control plots, respectively, averaged 79 and 66 % of those in the crown. The rate of respiration in the organic raw humus materials was higher when incubated with green litter needles from treated plots than when incubated with similar litter from control plots. The stimulatory effect of the litter needles seems to be related to an interaction between dry summers and fertilizer treatments. Nitrate was detected in the soil solution collected from N- and P-treated plots. The data suggest a negligible loss of nitrogen due to leaching of nitrate. Growth rates of trees after fertilizer treatment are related to foliar nutrient levels and to growth rates of trees prior to fertilization. Citing Literature Volume46, Issue1January-February 1982Pages 127-133 RelatedInformation