Biochar Application to Soils to Improve the Management of Irrigation Water

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Sustainable Agriculture Reviews 61

Part of the book series: Sustainable Agriculture Reviews ((SARV,volume 61))

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Abstract

Climate change has accentuated extreme events such as drought and flooding, thus altering the supply of water to plants. To solve this issue, the application of biochar to soils appears promising for managing soil water loss and improving the quality of irrigation water. Here we review the impact of biochar on irrigation with focus on soil water holding capacity, surface runoff and erosion, hydraulic conductivity, nutrients and pollutants. We found that biochar can improve soil water holding capacity by 12–60%, or by 98% when biochar is engineered, reduce surface runoff and erosion by 5.1–77.2%, increase hydraulic conductivity by 328%, reduce nitrate leaching by 75%, and accelerate phosphate leaching by 72%. The underlying mechanisms are discussed.

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Baquy, M.AA., Nkoh, J.N., Alam, M., Masud, M.M. (2023). Biochar Application to Soils to Improve the Management of Irrigation Water. In: Fahad, S., Danish, S., Datta, R., Saud, S., Lichtfouse, E. (eds) Sustainable Agriculture Reviews 61. Sustainable Agriculture Reviews, vol 61. Springer, Cham. https://doi.org/10.1007/978-3-031-26983-7_12

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