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The paper presents data on acquisition of conifer cones from 16 seed extraction plants operating on the territory of Poland during four consecutive years from 2009 to 2012. A high variability was observed in provision of seed units to the seed exaction plants related to specificity of a given seed year. During the four analyzed years the most commonly acquired cone was that of Scots pine – above 1...
Analysis of sawmill waste charring process in the steel retorts. There is described the process of sawmill waste charring in the steel retorts that belong to the contractor operating in Forest Inspectorate Kozienice. The process consists of nine stages and lasts over 76 hours, including 14 h (19%) of the effective charring, 47 h (62%) of cooling the retorts, and the remaining 15 h for cleaning, loading...
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