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Forest floor and soil nutrients five years after urea fertilization in a grand fir forest
- TIEDEMANN, A.R. - MASON, Richard R. - WICKMAN, Boyd E. Forest floor and soil nutrients five years after urea fertilization in a grand fir forest. In Northwest science. ISSN 0029-344X, 1998, vol. 72, no. 2, s. 88-95.
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