The potential of biochar incorporation into agricultural soils to promote sustainable agriculture: insights from soil health, crop productivity, greenhouse gas emission mitigation and feasibility perspectives—a critical review
Muhammad Saif Ullah, Raheleh Malekian, Gurjit S. Randhawa, Yuvraj Sing Gill, Sundeep Singh, Travis J. Esau, Qamar U. Zaman, Hassan Afzaal, Dao Lin Du, Aitazaz A. Farooque
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Abstract
Biochar is a carbon-rich material produced through the pyrolysis of organic biomass. Its unique properties make it a versatile asset in agricultural and environmental management. This review paper provides scientific insights into how biochar affects soil’s physical, chemical, and biological properties. It then discusses how these changes can impact crop growth and yield, addressing a key concern for farmers while also considering the potential for biochar to mitigate greenhouse gas (GHG) emissions such as carbon dioxide (CO2), Nitrous oxide (N2O), and methane (CH4), which is of public interest. Additionally, it examines the costs and benefits associated with biochar use, aiming to guide its adoption and suggest future research directions in agricultural applications. Biochar incorporation improves soil properties by enhancing structure, water retention, aeration, nutrient availability, and microbial activity. Different processes impact the effects of biochar on soil, plants, and agricultural systems, influenced by factors like biochar type, soil type, and application rate. Understanding the interaction of these elements, especially over the long term, is vital for promoting the widespread use of biochar in agriculture. Moreover, assessing the economic benefits and costs of biochar in each region is key to convincing farmers to adopt this practice.
期刊介绍：
Reviews in Environmental Science and Bio/Technology is a publication that offers easily comprehensible, reliable, and well-rounded perspectives and evaluations in the realm of environmental science and (bio)technology. It disseminates the most recent progressions and timely compilations of groundbreaking scientific discoveries, technological advancements, practical applications, policy developments, and societal concerns encompassing all facets of environmental science and (bio)technology. Furthermore, it tackles broader aspects beyond the natural sciences, incorporating subjects such as education, funding, policy-making, intellectual property, and societal influence.
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