期刊
BIORESOURCE TECHNOLOGY
卷 221, 期 -, 页码 139-146出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.09.038
关键词
Phosphorus fractions; Microbial biomass; Biochar; Phosphate-solubilizing bacteria (PSB); Kitchen wastes composting
资金
- National Natural Science Foundation of China [51378097]
- National Key Technology RD Program [2012BAJ21B02-02]
- National Natural Science Foundation of China [51378097]
- National Key Technology RD Program [2012BAJ21B02-02]
The study was conducted to investigate the influence of biochar and/or phosphate-solubilizing bacteria (PSB) inoculants on microbial biomass, bacterial community composition and phosphorus (P) fractions during kitchen waste composting amended with rock phosphate (RP). There were distinct differences in the physic-chemical parameters, the proportion of P fractions and bacterial diversity in different treatments. The contribution of available P fractions increased during composting especially in the treatment with the addition of PSB and biochar. Redundancy analysis showed that bacterial compositions were significantly influenced by P content, inoculation and biochar. Variance partitioning further showed that synergy of inoculated PSB and indigenous bacterial communities and the joint effect between biochar and bacteria explained the largest two proportion of the variation in P fractions. Therefore, the combined application of PSB and biochar to improve the inoculation effect and an optimized regulating method were suggested based on the distribution of P fractions. (C) 2016 Elsevier Ltd. All rights reserved.
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