Journal of
Soil Science and Environmental Management

  • Abbreviation: J. Soil Sci. Environ. Manage.
  • Language: English
  • ISSN: 2141-2391
  • DOI: 10.5897/JSSEM
  • Start Year: 2010
  • Published Articles: 287

Full Length Research Paper

Effect of biochar application on selected soil properties in Southwestern Nigeria

Olakayode A. O.
  • Olakayode A. O.
  • Department of Soil Science and Land Resources Management, Faculty of Agriculture, Obafemi Awolowo University, Ile-Ife, Nigeria.
  • Google Scholar
Akinde B. P.
  • Akinde B. P.
  • Department of Soil Science and Land Resources Management, Faculty of Agriculture, Obafemi Awolowo University, Ile-Ife, Nigeria.
  • Google Scholar
Egbebi I. A.
  • Egbebi I. A.
  • Department of Soil Science and Land Resources Management, Faculty of Agriculture, Obafemi Awolowo University, Ile-Ife, Nigeria.
  • Google Scholar


  •  Received: 28 June 2019
  •  Accepted: 29 August 2019
  •  Published: 31 July 2020

Abstract

This study investigated the effect of biochar on dispersible clay and soil chemical properties. The treatments consisted of four rates of milled biochar (0, 450, 900 and 1344 kg/ha) arranged in a Completely Randomized Design with four replicates. Surface (0-15 cm depth) soil of Iwo (Sandy loam) and Egbeda (Loamy sand) soil series were collected from the Teaching and Research Farm, Obafemi Awolowo University, Ile-Ife, Nigeria. 1 kg of each soil sample was thoroughly mixed with milled biochar at different rate and maintained at field moisture capacity for a period of 12 weeks in the screen house. Soil particle size distribution, bulk density, dispersible clay, soil pH, soil organic carbon and available phosphorous were determined. Data obtained were subjected to analysis of variance; Duncan’s New Multiple Range Test was used to separate significant means at p ≤ 0.05. It was revealed from the results that biochar addition at rate 450 and 1344 kg/ha appeared to be more beneficial and adequately improved soil pH, organic carbon and available phosphorous. Biochar at 900 kg/ha significantly reduced dispersible clay. It was concluded that short term biochar amendment did not improve soil quality of loamy sand.

Keywords: Biochar, dispersible clay, soil organic carbon, available phosphorus, soil pH.