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首页> 外文会议>Wood anatomy research 1995 >Fertilization effect on fiber dimensions of Eucalyptus urophylla
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Fertilization effect on fiber dimensions of Eucalyptus urophylla

机译：施肥对尾叶桉纤维尺寸的影响

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In order to investigate the effects the of fertilizer on fiber dimensions of eucalyptus wood, fiber length and width were studied within every growth increment of 25 Eucalyptus urophylla trees of 9 years old from 5 different experimental plots. The experimental plots were designed initially to investigate fertilization effects on growth rates, with all other environmental conditions controlled to a minimum difference. Based on the obtained data, effects of fertilization treatments on fiber dimensions were analyzed and discussed. Results show that fertilization treatment has no significant effect on fiber length, but it has a significant influence on fiber width. According to this study, fiber length of Eucalyptus urophylla was mainly determined by tree age, and the matured average fiber length measured 1000-1100μm, which the fibers from all the sample trees could reach at the age of 7 to 8 years. For fiber width, the smallest average value of 16.4μm was found in the sample trees from plot Dl which had no fertilization treatment; and the largest average value of 17.6μm was found in the sample trees from plot D3 treated with 50kgP/ Ha, and from D5 treated with (100kgN+50kgK+30kgMg+5kgCu+5kgZn +lkgB+0.2kgMo)/ ha. The results of this study indicate that fiber length is an inherent attribute of wood species, it is hardly influenced by environmental factors.
机译：为了研究肥料对桉木纤维尺寸的影响，研究了来自5个不同试验区的25棵9岁的尾叶桉树在每个生长增量中的纤维长度和宽度。实验地块的设计最初是为了研究施肥对生长速度的影响，而所有其他环境条件都应控制在最小范围内。根据获得的数据，分析和讨论了施肥处理对纤维尺寸的影响。结果表明，施肥处理对纤维长度没有显着影响，但对纤维宽度有显着影响。根据这项研究，尾叶桉的纤维长度主要取决于树木的年龄，成熟的平均纤维长度为1000-1100μm，所有样本树木的纤维在7至8岁时都能达到。对于纤维宽度，在未施肥处理的地块D1的样品树中发现的最小平均值为16.4μm。在以50kgP / Ha处理的地块D3和以（100kgN + 50kgK + 30kgMg + 5kgCu + 5kgZn + lkgB + 0.2kgMo）/ ha处理的D5的样本树中发现最大平均值17.6μm。这项研究的结果表明，纤维长度是木材的固有属性，几乎不受环境因素的影响。

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