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Long-Term Effects of Single Application of Biochar on Physical and Hydrological Properties of Crosby Silt Loam Soil in Central Ohio, USA

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Abstract

Purpose

Very few studies have been done on the long-term effect of one time biochar application on soil physical and hydrological properties. The current investigation aims to know the alterations in infiltration rate (IR), soil water content (SWC) at different potential, water stability of aggregates, etc. caused after 6 years of application of oak wood biochar in Crosby silt loam soil of temperate ecosystem.

Methods

The trial was carried out using a complete randomized block design with three treatments: B0 (no biochar), B25 (biochar at 25 Mg ha−1), and B5 (biochar at 5 Mg ha−1) and six replications. After 6 years, soil’s physical and hydrological characteristics were measured.

Results

The application of B25 resulted in the highest total porosity compared to the other treatments which in turns results in lower bulk density. B25 also enhanced the water stability of aggregates by 4.1%, as compared to the B0. B25 significantly enhanced soil water retention at all measured soil water potentials (0, −6, −10, -33, −100, and −1500 kPa) except for −1500 kPa (0–10 cm), −6 kPa (10–20 cm), and 0 kPa (10–20 cm) relative to B0. The highest increase in soil water content was recorded for B25 at 0 kPa (9.2%) followed by that at −6 kPa (7.4%). While, the B25 increased the mean hydraulic conductivity by 55.9% over control, B5 resulted in a 15.5% increase. The IR of soil also increased under B25 and B5 over B0 by 15.5 and 5.0%, respectively.

Conclusions

Biochar application in Crosby silt loam soil can enhanced soil physical and hydrological properties and maintained in long run.

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Data Availability

The authors confirm that the data supporting the findings of this study are available within this published article.

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Acknowledgements

The authors want to acknowledge the Department of Biotechnology (DBT), Govt. of India, for sponsoring a 1-year associateship of the first author and the Carbon Management and Sequestration Centre (C-MASC), The Ohio State University, for facilitating experimenting.

Funding

This work was supported by the Department of Biotechnology (DBT), Govt. of India, for sponsoring a 1-year associateship.

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Authors and Affiliations

Authors

Contributions

Jayanta Layek: conceptualization, methodology, formal analysis, investigation, sampling and analysis, writing original draft. Ratan Lal: overall guidance, conceptualization, project administration, editing manuscript. Ram Swaroop Meena: Sampling and analysis, editing manuscript. Tarik Mitran: analyzing soil samples, manuscript drafting. Rumi Narzari: making figures, editing manuscript, reference formatting.

Corresponding author

Correspondence to Jayanta Layek.

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Layek, J., Lal, R., Meena, R.S. et al. Long-Term Effects of Single Application of Biochar on Physical and Hydrological Properties of Crosby Silt Loam Soil in Central Ohio, USA. J Soil Sci Plant Nutr 23, 5013–5025 (2023). https://doi.org/10.1007/s42729-023-01533-8

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  • DOI: https://doi.org/10.1007/s42729-023-01533-8

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