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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 19, Number 2 (1968) → Standard Methods for Analyzing Total Nitrogen of White Spruce Seedlings Tissues Yield Significantly Different Results, Showing Need for Caution in Using This Data For Nursery Soil Management

Standard Methods for Analyzing Total Nitrogen of White Spruce Seedlings Tissues Yield Significantly Different Results, Showing Need for Caution in Using This Data For Nursery Soil Management

Tissue chemical analysis is gaining interest and use as an effective diagnostic technique in forest nursery soil management practices. It frequently is used with nursery stock to help evaluate seedling quality and fertilization schedules. However it does have limitations. For instance, the analytical techniques used, though their reproducibility is good, may not give the accurate nutrient element levels of the tissues. Different analytical techniques may give different values for the same sample. These differences are serious in that they are not consistent and are therefore not subject to simple correction; rather they are due to the complex nature of the chemical matrix encountered in plant tissue. This article evaluates total N analyses of seedling tissues as determined by the Kjeldahl and Dumas procedures.


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Author(s): Raymond H. Fornes, John A. Meyer, Albert L. Leaf

Publication: Tree Planters' Notes - Volume 19, Number 2 (1968)

Volume: 19

Number: 2