Biological and chemical reactivity and phosphorus forms of buffalo manure compost, vermicompost and their mixture with biochar

• Published in: Bioresource technology Vol. 148; pp. 401 - 407
• Main Authors: Ngo, Phuong-Thi, Rumpel, Cornelia, Ngo, Quoc-Anh, Alexis, Marie, Vargas, Gabriela Velásquez, Mora Gil, Maria de la Luz, Dang, Dinh-Kim, Jouquet, Pascal
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.11.2013; Elsevier
• Subjects: Agronomy. Soil science and plant productions; Animals; Applied sciences; Bamboo; Bambusa - chemistry; Biochar; Biochemistry; Biological; Biological and medical sciences; Biological treatment of sewage sludges and wastes; Biotechnology; Buffaloes; Carbon; Carbon - analysis; Charcoal - chemistry; Compost; Composting; Environment and pollution; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Industrial applications and implications. Economical aspects; Manure; Manure - analysis; Oligochaeta - metabolism; Organic Chemicals; Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries; Oxidation-Reduction; Phosphorus; Phosphorus - chemistry; Pollution; Soil - chemistry; Soil-plant relationships. Soil fertility. Fertilization. Amendments; SOM stability; Vermicompost; Wastes; Worms; Vermicompost; Compost; Phosphorus; Biochar; SOM stability; Organic waste; Vermicomposting; Stability; Bovine; Biology; Carbonization; Vertebrata; Mammalia; Artiodactyla; Chemical reactivity; Ungulata; Buffalo
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2013.08.098

•Use of EOM (compost, vermicompost, buffalo manure), biochar as a source of soil P.•Composting transformed organic P into plant available P.•The presence of biochar influenced the biological and chemical reactivity of EOM.•Biochar could increase the C sequestration of EOM when applied in mixture. This study characterized the carbon and phosphorus composition of buffalo manure, its compost and vermicompost and investigated if presence of bamboo biochar has an effect on their chemical and biological reactivity. The four substrates were characterized for chemical and biochemical composition and P forms. The biological stability of the four substrates and their mixtures were determined during an incubation experiment. Their chemical reactivity was analyzed after acid dichromate oxidation. Biological reactivity of these substrates was related to their soluble organic matter content, which decreased in the order buffalo manure>compost>vermicompost. Phosphorus was labile in all organic substrates and composting transformed organic P into plant available P. The presence of biochar led to a protection of organic matter against chemical oxidation and changed their susceptibility to biological degradation, suggesting that biochar could increase the carbon sequestration potential of compost, vermicompost and manure, when applied in mixture.