African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6574

Full Length Research Paper

Effect of different crop residue management techniques on selected soil properties and grain production of maize

C. N. Mbah1* and R. K. Nneji2
1Department of Soil Science and Environmental Management, Ebonyi State University, Abakaliki, Ebonyi State, Nigeria. 2Department of Agronomy and Ecological Management, Enugu State University of Science and Technology, Enugu, Nigeria.
Email: [email protected]

  •  Accepted: 10 August 2010
  •  Published: 05 September 2011

Abstract

Residue addition into the soil environment and the changes associated with their additions are important in planning cultural operations and developing appropriate soil management systems. The objective of this study was to evaluate the effects of different residue management techniques (surface mulch, burning and incorporation, slash and incorporation as well as control) on soil properties and grain yield of maize. In all treatments soil, pH, organic matter (OM) (g/kg), CEC (cmolkg-1), available Phosphorus (mgkg-1) and exchangeable bases (cmolkg-1) improved significantly (p < 0.05) relative to the control. Maize grain yield was higher in residue treated plots relative to the control in both cropping seasons irrespective of the treatment. The correlation co-efficient between yield and soil properties showed high values indicating that observed improvements in soil properties in amended plots contributed to higher maize grain yield.

 

Key words: Residue management, soil environment, soil organic matter, crop production, grain yield.