16 124 897 livres à l’intérieur 175 langues
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Impossible de faire fausse route avec un bon d’achat. Le destinataire du cadeau peut choisir ce qu'il veut parmi notre sélection.
Politique de retour sous 30 jours
The Forest Nursery Manual - a joint effort between the Department of Forest Science, Oregon State University, and the U.S.D.A. Forest Service, Division of State and Private Forestry - presents state-of-the art information about current bareroot-nursery practices and research. The Manual emphasizes all stages of seeding production from nursery-site selection throught outplanting. Twenty-one bareroot nurseries and eight seed-processing plants were surveyed with two in-depth questionnaires and the survey results interpreted and incorporated into chapters written by leading scientists and practicing nursery managers. Over 250 people previewed the Manual at the Bareroot Nursery Technology Workshop, held at Oregon State University in October 1982. The growing size and sophistication of the bareroot-nursery industry underscores the pressing need for an up-to-date synthesis such as this.