Browse Items (4362 total)
- Collection: Ken Armson fonds
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Nitrogen-deficient Norway spruce
Nitrogen-deficient Norway spruce one year after planting (cf.#74). Dorset.
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Nitrogen-deficient white spruce
Nitrogen-deficient white spruce furrow planted in an old field. Nr. Parry Sound
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Nitrogen-Fixing Nodules on Alnus; Actinomycetes the Organisms
Nitrogen-fixing nodules on Alnus; actinomycetes the organisms. Spodosol, HF, BSY.
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No Sawdust Added, n.b. Large Seedlings and Green colour.cf#45
No sawdust added, n.b. large seedlings and green colour.cf#45. Jack pine, 1+0, sawdust not added to soil.
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Noble Fir Grown in Large “Wood” Tubes
Noble fir grown in large "wood" tubes. Noble fir, 1+0, container.
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Nodules from roots of Alnus glutinosa in Dorset area
Nodules from roots of Alnus glutinosa in Dorset area; n.b. scale
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Nodules of Comptonia peregrina N-fixing
Nodules of Comptonia peregrina N-fixing
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Nodules on Black Locust (Robinia Pseudoacacia) With Rhizobium Bacteria Nitrogen-Fixing; See Slides #42 and 43
Nodules on black locust (robinia pseudoacacia) with rhizobium bacteria nitrogen-fixing; see slides #42 and 43. Alfisol, HF, BSY.
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Nodules on roots of Alnus glutinosa from Dorset area
Nodules on roots of Alnus glutinosa from Dorset area; x10.
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Normal Purpling of Jack Pine After the Onset of the First Frosts
Normal purpling of jack pine after the onset of the first frosts. Jack pine, winter "purpling."
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