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Proceedings of Past Forest Nursery Association Meetings:

Root Production Method System
Lovelace, Wayne
1999: Ames, IA
Oak production, container nursery

The RPM system (Root Production Method) is a multistep production system of container tree production that places primary emphasis on the root system because the root system ultimately determines the tree’s survival and performance in its outplanted environment. This particular container production system has been developed to facilitate volume production, in a high-quality tree with good height-caliper balance. Approximately 80% of our production consists of native trees, many of which present transplanting difficulties using conventional nursery growing systems. We specialize in oak production, currently growing 26 varieties.
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