摘要
以刚果１２号桉无性系组培苗为材料，进行４种不同密度和４种不同施肥处理双因素试验，３年生结果表明：不同密度和施肥措施对刚果１２号桉生长有极显著影响，密度效应和施肥效应交互作用显著；密度效应较施肥效应大，其方差分量前者约为后者的９倍；密度越大，单株材积越小，但单位面积蓄积越大；
The effect of various silviculture treatments on growth were examined at the clonal plantation of Eucalyptus ABL 12. Four different spacings and four fertilizer ratios at two levels were designed for experiment and the result in 3 years showed that the growth was significant response to different spacings and fertilizer ratios. Clear interaction was found between spacing and fertilizer ratio. Spacing effect on growth was greater than that of fertilizer ratio. The more density, the more volume per unit area, the less volume per tree. Fertilizing treatment by the addition of potassium was most favourable for trees growing.
出处
《广东林业科技》
1996年第4期28-31,共4页
Forestry Science and Technology of Guangdong Province
关键词
刚果12号桉
密度
效应
施肥
桉树
Eucalyptus ABL 12, espacement, fertilizer ratio
