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Par Collection Par Auteur- FRANKART, R. (1)
- PETIT, C. (1)
- POMA ROJAS, W. (1)
- PONETTE, Q. (1)
- 1991 (1)
- This note reports observations on control and amended plots installed in a beech stand in the Belgian Ardennes since 1977. The effects of two types of treatments are evaluated. The principal mechanisms governing the downward movement of fertilizers