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施肥对刚果12号桉高、径、蓄积量和尾叶桉高、径、蓄积量和冠幅生长均有极显著的影响 ,对刚果12号桉冠幅生长无影响。不同的施肥配比和施肥量对尾叶桉生长的效果是 :A2 N0P150K160>A4 N90P200K160>A3 N90P150K160>A1 N0P0K0(对照) ;对刚果12号桉的效应是 :A3 N90P150K160>A4 N90P200K160>A2 N0P150K160>A1 N0P0K0;在相同的密度下不同的株行距配置仅对尾叶桉冠幅和2年生胸径生长有显著差异 ,而对刚果12号桉的生长无影响 ,差异不显著
Fertilization had a very significant effect on the height, diameter and stock volume of Eucalyptus urophylla 12 and the height, diameter, stock volume and crown growth of Eucalyptus urophylla 12, but had no effect on the crown growth of Eucalyptus 12. The effects of different fertilization rates and fertilization rates on Eucalyptus urophylla growth were: A2 N0P150K160> A4 N90P200K160> A3 N90P150K160> A1 N0P0K0 (control); The effect on Eucalyptus 12 Cone was A3 N90P150K160> A4 N90P200K160> A2 N0P150K160> A1 N0P0K0. The results showed that there was a significant difference in the crown spacing and 2-year DBH growth of the Eucalyptus urophylla but not in the growth of the Eucalyptus 12 Cone at the same density