Effects of Biochar Application on Enzyme Activities in Tea Garden Soil
| Autor: | Xiangjun Wang, Lifeng Ping, Yunli Jiang, Zewen Jin, Yaming Zhao, Changai Zhang, Shengdao Shan |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Histology
microbial biomass Biomedical Engineering Amendment Bioengineering and Biotechnology chemistry.chemical_element food and beverages soil enzyme activity 3 Bioengineering Environmental pollution Tea garden Nitrogen complex mixtures soil swine-manure biochar chemistry Soil functions Environmental chemistry Biochar environmental pollution Carbon Pyrolysis TP248.13-248.65 Original Research Biotechnology |
| Zdroj: | Frontiers in Bioengineering and Biotechnology, Vol 9 (2021) Frontiers in Bioengineering and Biotechnology |
| ISSN: | 2296-4185 |
| DOI: | 10.3389/fbioe.2021.728530/full |
| Popis: | Animal-manure biochar used as a sustainable amendment to garden soil has been widely applied, and the animal-manure pyrolysis temperatures would also have a regulatory effect on soil functions because of their affections on biochar physio-chemical properties. Here we studied the effects of different dosages of swine-manure biochar on tea garden soil functions, with the swine-manure pyrolysis temperature differed at 350 and 500°C. The results showed that the improvement of soil microbial biomass carbon and nitrogen and enzyme activities was closely related to the addition of 0.5–2% (biochar wt/soil wt) swine-manure biochar. Under different conditions of different carbon application rates and carbon type, the addition of 2% swine-manure biochar pyrolyzed at 350°C showed the best effects on soil enzyme activities and microbial biomass carbon and nitrogen contents. Compared to the control, after the addition of 2% swine-manure biochar, sucrase, phosphatase, catalase, and urease activities increased by 63.3, 23.2, 50.3, and 27.9%, respectively. Microbial biomass carbon and nitrogen contents also increased by 36.4 and 34.3%, respectively. Our study indicated that the effectiveness of using animal-manure swine-manure biochar as a sustainable amendment to soil would provide evidence of tea garden soil improvement and the environmental response to the usage of biochars. |
| Databáze: | OpenAIRE |
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