Browse Items (4334 total)
- Collection: Ken Armson fonds
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Nitrogen deficiency in Norway spruce planted 1967
Nitrogen deficiency in Norway spruce planted 1967, 6 years. Razès.
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Copper deficiency in Douglas fir.
Copper deficiency in Douglas fir. n.b. crook in stem. Razès.
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Copper deficiency in Douglas fir.
Copper deficiency in Douglas fir. n.b. crook in stem which is a symptom of Cu deficiency. Razès.
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Copper deficiency in Douglas fir.
Copper deficiency in Douglas fir. n.b. crook in stem which is a symptom of Cu deficiency. Razès.
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Heathland, that has been cultivated then planted with Douglas fir which now has a copper deficiency.
Oil profile-sol brun acide. Heathland, that has been cultivated then planted with Douglas fir which now has a copper deficiency. Razès.
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Root system of 8 year old Douglas fir.
Root system of 8 year old Douglas fir. n.b. how limited the system is. Dussac, Dordogne.
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Root system of 8 year old Douglas fir.
Root system of 8 year old Douglas fir. n.b. how limited the system is. Dussac, Dordogne.
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Natural regeneration of chestnut.
Natural regeneration of chestnut. Dussac, Dordogne.
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Coppice of chestnut (Castanea sativa).
Coppice of chestnut (Castanea sativa). Dussac, Dordogne
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Chestnut coppice with standards being replaced with Douglas fir-in background.
Chestnut coppice with standards being replaced with Douglas fir-in background. Dussac, Dordogne.
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