Effect of specialized bio-organic fertilizer on soil improvement and fruit quality enhancement in declined Chinese bayberry
The newly emerging bayberry decline disease can cause leaf drop,tree death,and decrease fruit quality and yield.There may be a solution to this decline syndrome by applying bio-organic fertilizers.In this study,three types of bio-organic fertilizer prototypes were developed and applied based on preliminary investigation and considering the special nutrient needs of bayberry trees.The organic fertilizer carrier used in these prototypes was silkworm,which was co-inoculated with Bacillus licheniformis,Bacillus velezensis,and Micro bacterium phyllosphaerae.The effects of these bio-organic fertilizer prototypes on soil improvement and fruit quality enhancement were investigated by measuring the rhizosphere soil properties and fruit of declined trees.The results showed that compared with the control group,all three bio-organic fertilizers could increase the soil pH value by about 0.2,and could alleviate the soil acidification problem.They also increased the contents of available nitrogen,phosphorus,and potassium in the soil while maintaining soil organic matter content.In addition,the soluble solids content in bayberry fruits increased by 1.44,1.70,1.47 percentage points,respectively,with the maximum single fruit weight reaching 22.5 g.The fruit hardness was reduced,and the taste was improved.This study provides a theoretical and application basis for the development of specialized bio-organic fertilizers for bayberry to mitigate the adverse effects of the newly emerged bayberry decline symptoms.
万方数据
维普
