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Complementing compost with biochar for agriculture, soil remediation and climate mitigation

Khan, Naser and Bolan, Nanthi and Jospeh, Stephen and Lan Anh, Mai T. and Meier, Sebastian and Kookana, Rai and Borchard, Nils and Sánchez-Monedero, Miguel A. and Jindo, K. and Solaiman, Zakaria and Alrajhi, A.A. and Sarkar, B. and Basak, B.B. and Wang, H. and Wong, J.W.C. and Manu, M.K. and Kader, Md. Abdul and Wang, Q. and Li, R. and Ok, Y.S. and Withana, P.A. and Qiu, R. (2023) Complementing compost with biochar for agriculture, soil remediation and climate mitigation. In: Advances in Agronomy. Elsevier, United Kingdom, pp. 1-90. ISBN 978-0-443-19262-3

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Abstract

We are racing to manage a phenomenally increasing volume of organic wastes from urban, industrial and agricultural entities. Composting is one of the preferred ways to convert biodegradable wastes into nutrient-rich soil conditioners. The age-old technique of composting process is being improved with innovative scientific means. Biochar, a widely studied soil amendment, is a carbonaceous material that can hold nutrients from endogenic/exogenic sources. Biochar-compost, a biochar-complemented compost, may provide a wide range of benefits expected from both materials. Compost and biochar can improve physicochemical and microbiological attributes of soils by supplying labile and stable carbons, and nutrients. Compost may also supply beneficial microbes. This means biochar-compost is a synergic soil amendment that can improve soil quality, increase crop production, and remediate contaminated soils. Having stable carbon, large reactive surface with nutrient loads, biochar can interact widely with organic biomass and modify physicochemical and-microbial states during a composting process while making biochar-compost. Production and application methods of biochar, compost and biochar-compost are covered for agricultural and contaminated soils. Metal and organic contaminations are also discussed. A case study on making and field-testing a mineral-enhanced biochar and a biochar-compost to improve rice yield, is presented at the end.

Item Type: Book Chapter
Subjects: S Agriculture > S Agriculture (General)
Divisions: School of Agriculture, Geography, Environment, Ocean and Natural Sciences (SAGEONS)
Depositing User: Md. Abdul Kader
Date Deposited: 26 May 2023 03:10
Last Modified: 26 May 2023 03:10
URI: http://repository.usp.ac.fj/id/eprint/13975
UNSPECIFIED

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