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- W2003168961 abstract "A new approach is presented to evaluate the effects of fertilizer application on wood properties of Douglas-fir, in particular weight of tracheid and its length. A specially developed quartz ultra-microbalance was used to weigh tracheids (holocellulose and alpha cellulose skeletons), from wood formed by trees treated with four different formulations (urea, NPK, (NH 4 ) 2 SO 4 , NH 4 NO 3 ).Following the year of fertilization, tracheid weight decreased or remained static for 1 or 2 years; subsequently there was an increase in the weight of individual cells. Highly significant correlations (R 2 more than 64%) were found between length of tracheid and weight of carbohydrate material in it. Variations in cell weight following fertilizations, for the most part, were associated with changes in tracheid length.Although the study was not intended as a statistical sampling for the species, the results nevertheless illustrate that qualitative differences attributable to treatment composition (urea vs. NPK vs. (NH 4 ) 2 SO 4 ) exist, in that some treatments resulted in less weight of alpha cellulose per unit length of tracheid, when compared with normal wood tracheids. This reduction in cellulose fraction was suggested as a possible factor for differences observed in gross wood specific gravity in wood of some fertilized trees." @default.
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- W2003168961 date "1972-12-01" @default.
- W2003168961 modified "2023-09-27" @default.
- W2003168961 title "A New Approach for the Evaluation of Wood from Fertilized Trees" @default.
- W2003168961 doi "https://doi.org/10.1139/x72-064" @default.
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