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Primary production and nitrogen allocation of field grown sugar maples in relation to nitrogen availability

✍ Scribed by J. Mar Lennon; John D. Aber; Jerry M. Melillo

Publisher: Springer Netherlands
Year: 1985
Tongue: English
Weight: 862 KB
Volume: 1
Category: Article
ISSN: 0923-9820
DOI: 10.1007/bf02185038

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Absorbance was measured on a Unicam SP500 spectrophotometer. Chromatograms were repeated several times : the results are as follows : Extract Method 1 1 2 2 PC TLC PC TLC No. of chromatograms 5 5 4 4 Mean absorbance at 500mp 0.621 0.601 0.986 0,985 R.m.s. deviation 0.009 0.010 0.030 0.012 Coefficien