Effects of Enzyme Bacterial Fertilizer on Bioactive Components in Different Soil Layers of Biluochun Tea Garden
The paper examines the impact of enzymatic bacterial fertilizers on the active components of topsoil and subsoil in tea gardens through four fertilization modes:organic fertilizer(CK),organic fertilizer combined with enzymatic bacterial fertilizer A(A1),organic fertilizer combined with enzymatic bacterial fertilizer B(A2),and organic fertilizer combined with enzymatic bacterial fertilizer C(A3).The study specifically focuses on available nutrients(alkali-hydrolyzable nitrogen,available phosphorus,and available potassium),microbial biomass(biomass carbon,nitrogen,and phosphorus),soil extracellular enzyme activities(acid protease and acid phosphatase),and microbial(bacterial and fungal)populations.The results indicate that,compared to the application of organic fertilizer alone,the combination of organic fertilizer with enzymatic bacterial fertilizer significantly enhances various biological activity indicators in both topsoil and subsoil.Furthermore,enzymatic bacterial fertilizers not only notably improve the biological activity components of the topsoil but also exert a much greater influence on the topsoil than on the subsoil.Additionally,the three types of enzymatic bacterial fertilizers exhibit different effects,with the A1 treatment showing the best improvement.
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