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J Environ Manage. 2018 Dec 15;228:429-440. doi: 10.1016/j.jenvman.2018.09.006. Epub 2018 Sep 20.

A concise review of biochar application to agricultural soils to improve soil conditions and fight pollution.

Author information

1
College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China. Electronic address: shabanbzu@hotmail.com.
2
New South Wales Department of Primary Industries, Wollongbar, NSW 2477, Australia.
3
College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.
4
College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
5
Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Campus Univ., 27002 Lugo, Univ. Santiago de Compostela, Spain.
6
Department of Soil Science, Sindh Agriculture University, Tandojam 70060, Sindh, Pakistan.
7
College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China. Electronic address: rghu@mail.hzau.edu.cn.

Abstract

Application of biochar to soil can play a significant role in the alteration of nutrients dynamics, soil contaminants as well as microbial functions. Therefore, strategic biochar application to soil may provide agronomic, environmental and economic benefits. Key environmental outcomes may include reduced availability of toxic metals and organic pollutants, reduced soil N losses and longer-term storage of carbon in soil. The use of biochar can certainly address key soil agronomic constraints to crop production including Al toxicity, low soil pH and may improve nutrient use efficiency. Biochar application has also demerits to soil properties and attention should be paid when using a specific biochar for a specific soil property improvement. This review provides a concise assessment and addresses impacts of biochar on soil properties.

KEYWORDS:

Biochar; Metal contaminants; Microbial function; Soil fertility

PMID:
30243078
DOI:
10.1016/j.jenvman.2018.09.006
[Indexed for MEDLINE]

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