African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6693

Full Length Research Paper

Differences in smallholder farmers’ compost pits in terms of production and quality across Burkina Faso: The case of Eastern Region

Gnankambary Zacharia
  • Gnankambary Zacharia
  • National Center for Scientific and Technological Research (CNRST); Institute of Environment and Agricultural Research (INERA), Soil-Water-Plant Laboratory, 03 BP 7047 Ouagadougou 03, Burkina Faso.
  • Google Scholar
Pouya Mathias Bouinzemwendé
  • Pouya Mathias Bouinzemwendé
  • National Center for Scientific and Technological Research (CNRST); Institute of Environment and Agricultural Research (INERA), Soil-Water-Plant Laboratory, 03 BP 7047 Ouagadougou 03, Burkina Faso.
  • Google Scholar
Sanon Sogo Bassirou
  • Sanon Sogo Bassirou
  • National Center for Scientific and Technological Research (CNRST); Institute of Environment and Agricultural Research (INERA), Soil-Water-Plant Laboratory, 03 BP 7047 Ouagadougou 03, Burkina Faso.
  • Google Scholar
Sigué Hamadé
  • Sigué Hamadé
  • National Center for Scientific and Technological Research (CNRST); Institute of Environment and Agricultural Research (INERA), Soil-Water-Plant Laboratory, 03 BP 7047 Ouagadougou 03, Burkina Faso.
  • Google Scholar
Sedogo Papoaba Michel
  • Sedogo Papoaba Michel
  • National Center for Scientific and Technological Research (CNRST); Institute of Environment and Agricultural Research (INERA), Soil-Water-Plant Laboratory, 03 BP 7047 Ouagadougou 03, Burkina Faso.
  • Google Scholar
Kiba Delwendé Innocent
  • Kiba Delwendé Innocent
  • National Center for Scientific and Technological Research (CNRST); Institute of Environment and Agricultural Research (INERA), Soil-Water-Plant Laboratory, 03 BP 7047 Ouagadougou 03, Burkina Faso.
  • Google Scholar


  •  Received: 22 July 2022
  •  Accepted: 23 September 2022
  •  Published: 30 November 2022

Abstract

Sub Saharan African soils have low organic matter contents, hence applying compost is therefore instrumental to improve their fertility. This study investigated the quantity and the quality of compost produced by smallholder farmers in five provinces (Gnagna, Gourma, Komondjari, Kompienga and Tapoa) from Eastern Burkina Faso. Compost quality was determined by the main physical and chemical characteristics including bulk density, pH, organic matter (OM), carbon-to-nitrogen ratio (C/N), total-N and -P contents. The principal component analysis indicated that compost issues were specific to each province. Compost production per pit was higher in Kompienga (4.2 t/pit) as compared to Tapoa (2.9 t/pit) and Komondjari (2.1 t/pit). OM content and C/N were each negatively correlated with total-N, total-P and pH. The lowest OM content, of 16%, was recorded in Kompienga while the highest, nearly the double, was found in Gnagna. The C/N ratio was highest in Gnagna (21.4) as compared to the other provinces (11-18). The total-N content (8.5-9.6 g/kg) and total-P (2525-5068 mg/kg) were similar among provinces. The pH of all composts was alkaline and ranged between 7.7 and 8.9. With regards to the physical and chemical characteristics, these composts could be qualified as good quality, mature and stable composts.

Key words: Bulk density, compost quality, chemical characteristics.