国槐生长调控试验对比及养护技术研究

Experimental Comparison and Maintenance Techniques of Growth Regulation of Styphnolobium japonicum

国槐作为一种优良的街道和公园树种,在北京丰台区有大规模种植。同时,生长调控与养护技术的应用对国槐的生长具有显著影响,研究了北京丰台地区丰益公园土壤条件下国槐在生长调控下的生长和健康状况,并提供养护方案。采用试验对比的方法,设置了试验组和对照组的种植对比,定量研究了北京丰台地区丰益公园国槐的生长、健康状况的综合数据。结果表明,调控丰台地区土壤的pH值、湿度、营养成分并进行生物防治,在试验周期内,生长平均高度增长较对照组增加1.2 cm,平均冠幅增长增加0.9 cm,其他生长指标也同样呈现明显增加的趋势。通过生长调控,国槐的生长数据较未调控增加明显,生长高度相对增加62.5%,冠幅相对增长66.7%,病虫害也呈下降趋势。同时,从土壤改良与肥料管理、浇水管理、季节性修剪与冠形塑造、病虫害管理方面提出了养护建议,期望为丰台区乃至整个北京地区提供一套更为科学、有效的国槐生长调控与养护方案。

As an excellent street and park tree species,Styphnolobium japonicum is widely planted in Fengtai District,Beijing.At the same time,the application of growth regulation and maintenance techniques has a significant impact on the growth of Styphnolobium japonicum.This paper studied the growth and health status of Styphnolobium japonicum under growth regulation under soil conditions in Fengyi Park,Fengtai District,Beijing;And maintenance plans are provided.Using the method of experimental comparison,a comparative study was conducted between the experimental group and the control group to quantitatively study the comprehensive data on the growth and health status of Styphnolobium japonicum in Fengyi Park,Fengtai District,Beijing.The comparative data shows that regulating the pH value,humidity,nutrient composition of the soil in Fengtai area and conducting biological control,during the experimental period,the average growth height increased by 1.2cm compared to the control group,and the average crown diameter increased by 0.9cm.Other growth indicators also showed a significant increase trend.Through growth regulation,the growth data of Styphnolobium japonicum increased significantly compared to unregulated,with a relative increase of 62.5% in growth height and 66.7% in crown width.Diseases and pests also showed a downward trend.At the same time,maintenance suggestions were proposed from the aspects of soil improvement and fertilizer management,watering management,seasonal pruning and crown shaping,and pest and disease management,which aims to provide a more scientific and effective plan for the growth regulation and maintenance of Styphnolobium japonicum in Fengtai District and even the entire Beijing area.