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Image Number K11068-1

To determine the effects of compost on mycorrhizae in greenhouse production of nursery crops, plant pathologist Robert Linderman and technician Anne Davis grow plants (marigolds shown here) in a potting mix with various levels of compost. Some plants are inoculated with mycorrhizal fungi and others are not. Compost was added to the larger plant that Linderman is holding (left) while none was added to the smaller plant.

Photo by Peggy Greb.

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