不同育苗密度对台湾栾树苗木生长影响

Effect of different seedling densities on the growth of Koelreuteria elegans seedlings

为了实现台湾栾树科学育苗,培育园林绿化树种,本文通过分析不同育苗密度下该苗木生长情况,研究育苗密度对该树种苗木成活率、苗高、地径以及冠幅4个指标的影响。研究表明,育苗密度对台湾栾树苗木的成活率、苗高、地径以及冠幅等4个指标的生长情况均有一定影响;在5个不同育苗密度处理中,处理3(9 cm×9 cm)、处理4(12 cm×12 cm)和处理5(15 cm×15 cm)育苗密度的台湾栾树苗木成活率最佳;处理3(9 cm×9 cm)、处理4(12 cm×12 cm)和处理5(15 cm×15 cm)育苗密度的台湾栾树苗木苗高生长最佳;处理4(12 cm×12 cm)、处理5(15 cm×15 cm)育苗密度的台湾栾树苗木地径生长最佳;处理5(15 cm×15 cm)育苗密度的台湾栾树苗木冠幅生长最佳。综合分析可知,在不同育苗密度处理中,处理5(15 cm×15 cm)育苗密度的台湾栾树苗木的成活率、苗高、地径和冠幅等4个指标的生长情况总体较好,适宜推广。

In order to achieve scientific seedling cultivation of Koelreuteria elegans and cultivate large landscaping trees,this article analyzes the growth of Koelreuteria elegans seedlings under different seedling densities,and studies the effects of seedling density on four indicators of survival rate,seedling height,ground diameter,and crown width of the tree species.Research has shown that seedling density has a certain impact on the growth of four indicators,including survival rate,seedling height,ground diameter,and crown width,of Koelreuteria elegans seedlings;Among 5 different seedling density treatments,the survival rate of Koelreuteria elegans seedlings was the best at seedling densities of Processing 3(9 cm × 9 cm),Processing 4(12 cm × 12 cm),and Processing 5(15 cm × 15 cm);The height growth of Koelreuteria elegans seedlings is optimal at seedling densities of Processing 3(9 cm × 9 cm),Processing 4(12 cm × 12 cm),and Processing 5(15 cm × 15 cm);The ground diameter growth of Koelreuteria elegans seedlings is optimal under seedling densities of Processing 4(12 cm × 12 cm)and Processing 5(15 cm × 15 cm);The crown width growth of Koelreuteria elegans seedlings is optimal under a seedling density of Processing 5(15 cm × 15 cm).Based on comprehensive analysis,it could be concluded that under different seedling density treatments,the survival rate,seedling height,ground diameter,and crown width of Koelreuteria elegans seedlings under a seedling density of Processing 5(15 cm × 15 cm)showed overall good growth,which was suitable for promotion.