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A method for studying the NPK content of Abies sibirica needles


, : A method for studying the NPK content of Abies sibirica needles. Byulletin Glavnogo Botanicheskogo Sada (118): 31-36

Studies were made of the NPK content of needles of different ages taken from different parts of the crowns of 50-yr-old trees growing in Novosibirsk, USSR. The tabulated results for each element suggested that, when comparing nutrient contents of different trees, samples should be gathered from the previous year's needles on the same whorl; aspect had little effect on NPK content.

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