Fertilization Affects Growth and Incidence of Grey Mold on Container-Grown Giant Sequoia
Different formulations of commercial soluble fertilizers were tested on container seedlings of giant sequoia (Sequoiadendron giganteum (Lindl) Buchholz). The 28-14-14 formulation, followed by the 10-52-10, 35-5-10, and 8-20-30 formulations, resulted in seedlings with adequate dimensions (height of 26 cm and collar diameter of 7 mm). As far as grey mold caused by Botrytis cinerea Pers. ex Fr. was concerned, 0-15-40 and 8-20-30 formulations produced seedlings in excellent sanitary state. In the container nursery conditions of the Association Foret-Cellulose (AFOCEL) experiment station, from now on, giant sequoia seedlings will be provided with the 28-14-14 formulation from May to July and then with the 8-20-30 formulations from August to September, in order to obtain seedlings with desirable growth characteristics and disease resistance. Tree Planters' Notes 44(2):68-72; 1993.
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Author(s): Sandrine Vancon
Publication: Tree Planters' Notes - Volumes 44, Number 2 (1993)
Section: Peer- Reviewed
Volume: 44
Number: 2
