Effects on the Growth Impact of Interplanting Green Manure in Eucalyptus Forests of the State-Owned Daguishan Forest Farm in Guangxi
Interplanting green manure is one of the main methods to promote the growth of Eucalyptus forests.To quantify the impact of interplanting different green manure on Eucalyptus growth,this study conducted experi-ments on Eucalyptus forests in Daguishan State-owned Forest Farm,Guangxi.The results showed that the treat-ment of interplanting Tephrosia candida DC.and Sesbania cannabina significantly increased the content of organic matter,available nitrogen,available phosphorus,and available potassium in the soil;Two types of green manure treatments can also significantly increase the height,diameter at breast height,and volume of Eucalyptus trees.Based on the entropy weight method and three evaluation systems,a comprehensive evaluation was conducted,all of which showed that the Tephrosia candida DC.treatment had the best promoting effect on the growth of Eu-calyptus trees,followed by the field Sesbania cannabina treatment,while the control group had the worst effect.It is recommended to promote interplanting of Tephrosia candida DC.under the forest in the production practice of Eucalyptus forests.
Guangxi State-owned Daguishan Forest FarmEucalyptus forestinterplanting green manuresoil nu-trientsgrowth situation