Publication Date:
1980-09-01
Description:
Volume, dry weight, density, and kraft pulping data were obtained from control and fertilized, mature balsam fir (Abiesbalsamea (L.) Mill.) from Nova Scotia. Fertilization treatments consisted of 450 kg N/ha; 450 kg N and 112 kg P/ha; and 450 kg N, 112 kg P, and 112 kg K/ha, plus the untreated control. Samples were taken at three height positions in trees: stump, breast height, and mid-stem. Wood laid down for 5 years after treatment was separated from wood laid down for 5 years before treatment, and its density determined before being pulped by the kraft process.Fertilization significantly increased volume and dry weight increment and reversed patterns of growth decline during the response period. Any effect specifically due to phosphorous or potassium fertilization over that of nitrogen could not be detected with certainty. Wood density was reduced by N and NP applications; however, pulp yield was unaffected by the fertilization treatments. The need for tree equivalence prior to treatment is stressed for more precise testing of differences.
Print ISSN:
0045-5067
Electronic ISSN:
1208-6037
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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