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Nutrient Concentration in Black Spruce Foliage Immediately Following Fertilization
Author(s) -
Salonius P. O.
Publication year - 1977
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1977.03615995004100010036x
Subject(s) - black spruce , human fertilization , nutrient , fertilizer , growing season , nitrogen , agronomy , ammonium sulfate , zoology , nitrogen fertilizer , sulfate , ammonium , chemistry , environmental science , botany , biology , ecology , taiga , organic chemistry , chromatography
Ammonium sulfate, triple superphosphate, or K sulfate were applied to plots in a 60‐year‐old black spruce ( Picea mariana (Mill.) B.S.P.) stand, and seasonal changes in foliar nutrient levels on the treated plots were compared with those on the control before and after fertilization. Nitrogen was absorbed initially very quickly but there appeared to be some delay in the initial uptake of P. Both N and P were absorbed steadily throughout the remainder of the growth season. Possible methods of capitalizing on this fact and thus increasing fertilizer efficiency and decreasing losses of applied nutrients are discussed.