Effect of Cow Dung Biochar and Inorganic Fertilizer on Nutrient Leaching from the Soil

IJEP 44(5): 405-411 : Vol. 44 Issue. 5 (May 2024)

D.O. Babadele1, O.G. Dayo-Olagbende2*, B.S. Ewulo3 and M. Aminu3

1. Olusegun Agagu University of Science and Technology, Department of Crop, Soil and Pest Management, School of Agriculture and Food Technology, Okitipupa, Ondo, Nigeria
2. Afe Babalola University, College of Sciences, Department of Agricultural Sciences, Ado-Ekiti, Nigeria
3. Federal University of Technology, Department of Crop, Soil and Pest Management, School of Agriculture and Agricultural Technology, Akure, Ondo, Nigeria


Nutrient leaching poses a significant challenge, particularly in tropical regions characterized by high rainfall, leading to diminished soil fertility and environmental contamination. This study seeks to explore the efficacy of cow dung biochar in mitigating nutrient leaching. The experimental design utilized a completely randomized design (CRD) with three replications. The investigation encompassed four treatments: a control, NPK 15:15:15 fertilizer application, sole biochar incorporation and a combination of NPK and biochar. Collected data encompassed parameters, like pH, soil texture, nitrogen, phosphorus and exchangeable cations. Statistical analysis was performed through ANOVA using SPSS 2017, while Tukey HSD was employed to discern means at a 5% significance level. Microsoft Excel 2016 was used to generate graphs and charts. Post-experimental soil and leachate analyses revealed diminished nitrogen and potassium leaching in biochar-treated scenarios. Calcium and magnesium leaching were most subdued in both control and biochar-treated soils. In conclusion, incorporating biochar into soil exhibits promise for curtailing nutrient loss via leaching, thereby reducing environmental pollution. This approach holds potential for enhancing soil fertility, bolstering productivity, reducing environmental pollution and aiding carbon sequestration to combat climate change. These findings hold significant implications for formulating policies aimed at environmental enhancement, sustainable soil management and conservation strategies.


Nitrogen, Leachates, Exchangeable cations, Phosphorus


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