Wet tropics, Sarawak: Eucalyptus pellita
In a 12-month open-field trial in Sarawak, Malaysia, Forest3 Rootzone was compared with standard forestry fertilization practices during Eucalyptus pellita establishment.
At 9 months, nitrogen-use efficiency was 9.3 times as high and phosphorus-use efficiency was 6.6 times as high. At 6 months, treated trees were 15 cm (6%) taller on average.
Key conclusions
9.3
x
Nitrogen-use efficiency
At 9 months after transplanting: NUE of 93 with Forest3 Rootzone versus 10 with standard fertilization practices.
Phosphorus-use efficiency was 6.6 times as high at 9 months.
Phosphorus NUE was 66 with Forest3 Rootzone, compared with 10 under standard forestry fertilization practices.
Mean tree height was 6% greater after 6 months.
Treated trees were, on average, 15 cm taller than trees receiving standard forestry fertilization practices.
+15
cm
Greater mean tree height
At 6 months after transplanting, equivalent to a 6% increase versus standard fertilization practices.
Evaluating Forest3 Rootzone fertilizer performance during Eucalyptus pellita establishment.
Trial details
Eucalyptus
Fast-growing hardwood for pulp and timber.
Southeast Asia
Establishment
Tropical
Field performance
This 12-month open-field trial compared Forest3 Rootzone with standard forestry fertilization during Eucalyptus pellita establishment. Nutrient-use efficiency (NUE) was assessed at 9 months and is expressed as tree height gain relative to control (cm) divided by the amount of nitrogen (N) or phosphorus (P) applied (kg/ha). Mean tree height was measured at 6 and 12 months; the comparative height result reported here is from 6 months after transplanting.
Greater height gain per nutrient applied
At 9 months after transplanting, nitrogen-use efficiency was 93 for Forest3 Rootzone versus 10 for standard forestry fertilization; phosphorus-use efficiency was 66 versus 10. These values were 9.3 and 6.6 times as high, respectively. Measured as height gain relative to control per kg/ha of nutrient applied, the differences were 83 for nitrogen and 56 for phosphorus.
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Nutrient Use Efficiency of nitrogen (N) and phosphorous (P) at 9 months after transplanting.
Taller trees after transplanting
At 6 months after transplanting, trees treated with Forest3 Rootzone grew +15 cm (+6%) taller than trees treated with standard forestry fertilization practices.
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Currently growing...
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Mean tree height at 6 months after transplanting. Source: 24.F3.P-EUC-MY02.
