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Proceedings of Past Forest Nursery Association Meetings:

Application of Foliar Fertilizer During Bud Initiation Treatments to Container-Grown Conifer Seedlings
Montville, Mark E.; Wenny, David L.
1990: Roseburg, OR
Foliar fertilizer applications to ponderosa pine and
Douglas-fir seedlings during bud initiation treatments significantly
impacted seedling quality. Timing of bud formation was
undisturbed in ponderosa pine seedlings but delayed in Douglas-fir
seedlings by foliar fertilization. Foliar fertilizer enhanced foliar
nitrogen concentration, seedling caliper and height growth, bud
length, and shoot-root ratio of both species. Root growth potential
was unaffected by foliar fertilization, while differences in seedling
cold hardiness were modest.
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