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丰台区垂柳栽培中的根腐病分析与治理研究

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为提高丰台区垂柳病害治理水平,实现林业可持续发展,对垂柳树栽培中根腐病的致病因子、发病影响因素及防治措施展开分析.采用数据统计的方法,统计2020-2022年丰益公园垂柳根腐病的检测和影响因素结果并进行分析,建立根腐病与气候条件、连作障碍和土壤条件的影响关系.结果表明:垂柳根腐病中丝核菌、镰刀菌属和疫霉菌为首要病原,同时根腐病易受到气候条件与连作障碍、土壤条件与肥力管理等因素的影响,使垂柳生长发育受限,威胁垂柳生态系统稳定性.出现根腐病的垂柳树样本中检出丝核菌的阳性率最高,达70.5%;高温多雨季节根腐病的发病率显著高于其他月份,大兴区降雨量最大的7月份达60.4%;在土壤pH值方面,小于6.0的土壤根腐病最严重,检出率达42%.为科学防治根腐病,提出了应进行持续、科学地土壤分析与管理,保证土壤pH值为6.0~7.0,同时采用土壤生态修复策略、优化种植系统、建立相关体系、强化综合治理.
Analysis and Management of Root Rot in Salix babylonica Cultivation in Fengtai District
In order to improve the management level of Salix babylonica diseases in Fengtai area and achieve sus-tainable forestry development,an analysis is conducted on the treatment factors,influencing factors,and preven-tion measures of root rot disease in Salix babylonica cultivation.Using the method of data statistics,the detection and influencing factors of Salix babylonica root rot disease in Fengyi Park from 2020 to 2022 were analyzed,and the relationship between root rot disease and climate conditions,continuous cropping obstacles,and soil condi-tions was established.The statistical results show that Rhizoctonia,Fusarium,and Phytophthora are the primary pathogens in the root rot disease of Salix babylonica.At the same time,root rot disease is easily affected by cli-mate conditions and continuous cropping obstacles,soil conditions and fertility management,which restricts the growth and development of Salix babylonica and threaten the stability of the Salix babylonica ecosystem.The positive rate of Rhizoctonia was the highest in the samples of Salix babylonica with root rot disease,reaching 70.5%;The incidence rate of root rot in hot and rainy season was significantly higher than that in other months,and the highest rainfall was 60.4%in July in Daxing District;In terms of soil pH value,soil with a pH value less than 6.0 is the most severe,with a detection rate of 42%.To scientifically prevent and control root rot,continuous and scientific soil analysis and management are necessary to ensure that the soil pH value is maintained between 6.0 and 7.0.At the same time,soil ecological restoration strategies are adopted;planting systems are optimized;rele-vant systems are established and comprehensive management is strengthened.

Salix babylonicaroot rot diseaseinfluence relationshipsscientific prevention and controlsoil re-mediation

叶鹏

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北京市丰台区园林绿化服务中心,北京 100048

垂柳树 根腐病 影响关系 科学防治 土壤修复

2024

绿色科技
花木盆景杂志社

绿色科技

影响因子:0.365
ISSN:1674-9944
年,卷(期):2024.26(3)
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