4.7 Article

Sustainable biochar-based soil fertilizers and amendments as a new trend in biochar research

期刊

SCIENCE OF THE TOTAL ENVIRONMENT
卷 816, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.scitotenv.2021.151588

关键词

Fertilization; Soil amendment; Slow-release; Sustainable agriculture; Circular economy

资金

  1. National Science Centre (Poland) [OPUS-18, UMO-2019/35/B/ST10/02143]

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This paper presents an overview of different types of biochar (BC) fertilizers and their positive effects on soil properties and crop yields. The combination of BC with compost is proposed as a solution to reduce the use of commercial inorganic fertilizers and decrease environmental pollution.
Today's world is struggling with many environmental problems. Due to the ever-growing size of the population, it is necessary to produce more and more food. The consequence of such a large demand for food is excessive fertilization of soils, often in an uncontrolled manner. The paper presents an overview of the different types of biochar (BC) fertilizers obtained by: coating BCs with a protective layer, coating commercial fertilizers with a layer of BCs, or mixing BCs with commercial fertilizers. Although the use of these new types of fertilizers has a positive effect on soil properties and crop yields, the production and use of simple inorganic fertilizers are dominant. The solution to starting the change of this trend may be the use of BC-compost systems as an effective soil amendment, due to the fact that composts are still the most frequently used products by farmers. The review summarized two types of BC-compost soil amendments: BC mixed with ready-made compost and BC co-composted with compost raw material. These types of soil amendments contribute to a significant reduction in the consumption of commercial inorganic fertilizers, and thus less pollution of the natural environment, while allowing for a high yield of safe food. (c) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).

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