Study of some biological and nutritional factors that influence nodulation by Frankia on red alder (Alnus rubra) and snowbrush (Ceanothus velutinus) within three age-class Douglas-fir forests in H.J. Andrews Experimental Forest, Oregon

Nestor S. Rojas-Melo

1997

Añadir

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Snowbrush, Ceanothus velutinus Dougl., its ecology and role in forest regeneration in the Oregon Cascades

Jaroslav Zavitkovski

1966

Añadir

Levels-of-growing-stock cooperative study in Douglas-fir

Robert O. Curtis

1986

Añadir

News letter

Manning Seed Company

1950

Añadir

The Douglas-fir/ninebark habitat type in central Idaho

Steele, Robert W.

1989

Añadir

Response of Douglas-fir seedlings to nitrogen, sulfur, and phosphorus fertilizers

M. A. Radwan

1985

Añadir