Six-year growth of Eucalyptus saligna plantings as affected by nitrogen and phosphorus fertilizer. Forest Service research paper (Final)

Technical Report · Thu Oct 01 04:00:00 EDT 1987

OSTI ID:6959587

Whitesell, C D; DeBell, D S; Schubert, T H

Growth responses of Eucalyptus saligna to nitrogen (N) and phosphorus (P) fertilizers were assessed in bioenergy plantations on abandoned sugarcane land in Hawaii. Fertilizers were applied three times (0.6, and 15 months after planting) in a factorial design with four dosages each of N(0, 25, 50, and 75 g urea per tree) and P(0, 30, 60, and 90 g triple superphosphate per tree). Phosphorus and the N x P interaction had little effect on tree growth. Effects of N, however, were dramatic during the first year, and benefits were sustained through 6 years. Effects of N on height growth and diameter growth dropped markedly during the third year and thereafter. Bioenergy plantations of E. saligna established on similar sites and soils will benefit from high dosages of N fertilizer and presumably from repeated applications.

• Research Organization: Forest Service, Berkeley, CA (USA). Pacific Southwest Forest and Range Experiment Station
• OSTI ID: 6959587
• Report Number(s): PB-88-199237/XAB; FSRP-PSW-188
• Country of Publication: United States
• Language: English

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