Report on Forest ResearchH.M. Stationery Office, 1955 - Forests and forestry |
Contents
EXPERIMENTAL WORK IN NURSERIES by G D Holmes and R Faulkner | 5 |
SILVICULTURAL INVESTIGATIONS by R F Wood and M V Edwards | 18 |
ECOLOGICAL INVESTIGATIONS by J M B Brown | 24 |
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acre appear applied assessed average bark beech Britain carried caused cent collection compared complete compost conifers considerable continued counts crops damage Douglas fir early effect experimental experiments factors feet fertilizer figures five flower Forest Forestry formalin four frost fruit further germination girth given gives ground growing growth inches increased infection inoculated Italy Japanese larch less manuring March material mean heights measure method Nitrochalk nitrogen normal nurseries observations obtained percentage period Pinus plantations plants plots possible present production protection provenances pupae raised range recorded repellent Report Research root sample Scots pine season seed seedbeds seedlings showed shown significant similar Sitka spruce soil sowing species square yard standard stems Studies survey Table temperature thinning timber transplants treated treatments trees trials volume woodland woods yield