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Application of biochar derived from expansive shrubs and limestone improved acidic soil characteristics.

Authors :
Haile, Mebrahtu
Birhane, Emiru
Gebresamuel, Girmay
Adaramola, Muyiwa S.
Rannestad, Meley Mekonen
Source :
Carbon Management. Dec2024, Vol. 15 Issue 1, p1-15. 15p.
Publication Year :
2024

Abstract

Biochars were produced at 350 °C and applied at varying rates (0, 52, 104, and 156 Mg ha−1 and incubation times up to 120 days. Both biochars and limestone significantly improved soil properties like pH, electrical conductivity, cation exchange capacity (CEC), and nutrient availability. Limestone proved most effective, raising pH by 1.3 units on average and increasing EC and CEC, followed by Cadia purpurea- and Tarchonanthus camphoratus-based biochars. Biochars also increased pH, with Cadia purpurea showing the greatest effect (up to a 1.49 unit increase at the highest rate of application). These findings suggest biochar from these expansive plants holds promise for improving acidic soils. However, the optimal application rate, incubation times, and type of amendment (biochar or limestone) likely depend on specific soil characteristics and goals. Further research is needed to explore long-term effects, combined amendment approaches, and cost-effectiveness for long-term soil health, agricultural productivity, and environmental well-being. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
17583004
Volume :
15
Issue :
1
Database :
Academic Search Index
Journal :
Carbon Management
Publication Type :
Academic Journal
Accession number :
181659902
Full Text :
https://doi.org/10.1080/17583004.2024.2364784