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研究了不同施肥处理对６ ａ 生尾叶桉单株材积、年轮宽度、密度的影响规律，结果表明：从髓心向外，６ ａ 生尾叶桉年轮宽度呈逐渐减小趋势，基本密度呈逐渐上升趋势；施肥处理可以显著加快６ ａ 生尾叶桉的生长速度，提高尾叶桉的生长量；而造林当年施肥不仅加快尾叶桉当年的生长速度，对后期生长也有较好的促进作用；各施肥处理与对照材木片密度无显著差异。
The effects of different fertilization treatments on the volume per plant, annual ring width and density of 6-day-old Eucalyptus urophylla were studied. The results showed that the annual ring width of 6-day-old Eucalyptus urophylla tended to decrease gradually from the medullary center, The density increased gradually; the fertilization treatment could significantly speed up the growth rate of Eucalyptus urophylla and promote the growth of Eucalyptus urophylla, while the fertilization at the year of afforestation not only accelerated the growth rate of Eucalyptus urophylla, but also had better growth in later stage Promote the role of the fertilization treatment and control wood chip density no significant difference.