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Hardening fertilization and nutrient loading of conifer seedlings

Author(s):

R. Kasten Dumroese

Year:

2003

Publication type:

Scientific Journal (JRNL)

Primary Station(s):

Southern Research Station

Source:

In: Riley L.E., Dumroese R.K., Landis T.D., technical coordinators. National Proceedings: Forest and Conservation Nursery Associations—2002. Ogden, UT: USDA Forest Service, Rocky Mountain Research Station. Proceedings RMRS-P-28: 31–36. Available at: http://www.fcnanet.org/proceedings/2002/dumroese.pdf

Description

Continuing to fertilize bareroot and container seedlings during the hardening process (from cessation of height growth until lifting) can improve seedling viability. The process of fertilizing during hardening has many names, but in the last decade a new term, nutrient loading, has come into use. The process of nutrient loading seedlings leads to luxury consumption indicated by foliar nitrogen (N) concentrations > 2.5%. Increasing foliar nutrient concentrations during hardening can result in increased cold hardiness, seedlings with thicker stems, heavier root systems, better root-toshoot ratios, higher foliar N concentrations and contents, and the potential for better survival and growth on the outplanting site.

Citation

Dumroese, R. Kasten. 2003. Hardening fertilization and nutrient loading of conifer seedlings. In: Riley L.E., Dumroese R.K., Landis T.D., technical coordinators. National Proceedings: Forest and Conservation Nursery Associations—2002. Ogden, UT: USDA Forest Service, Rocky Mountain Research Station. Proceedings RMRS-P-28: 31–36. Available at: http://www.fcnanet.org/proceedings/2002/dumroese.pdf

Publication Notes

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https://www.fs.usda.gov/treesearch/pubs/5444