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: 314

Full Length Research Paper

Effects of organic fertilizer (NPK 5-9-19) and mineral (NPK 12-11-18) on soil chemical properties in tomato crop in the South and Mid-west of the Ivory Coast

Angui T. K. P.
  • Angui T. K. P.
  • UFR Sciences et Gestion de l’Environnement, Université Nangui Abrogoua, 02 BP 801 Abidjan 02, Côte d'Ivoire.
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Kotaix A. J. A.
  • Kotaix A. J. A.
  • Centre National de Recherche Agronomique, BP 808 Divo, Côte d'Ivoire.
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Kassin K. E.
  • Kassin K. E.
  • Centre National de Recherche Agronomique, BP 808 Divo, Côte d'Ivoire.
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N’goran K. E.
  • N’goran K. E.
  • Centre National de Recherche Agronomique, 01 BP 633 Bouaké, Côte d'Ivoire.
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Pierrec Z. K.
  • Pierrec Z. K.
  • Société d’Etude et de Réalisation des activités Agricoles Innovantes et Environnementales (SERAINE), 05 BP 2562 Abidjan 05, Côte d'Ivoire.
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Bonfoh B.
  • Bonfoh B.
  • Centre suisse de Recherches scientifiques en Côte d’Ivoire 01 BP 1303 Abidjan 01, Côte d'Ivoire.
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  •  Received: 09 May 2018
  •  Accepted: 14 June 2018
  •  Published: 31 July 2018


A study on mineral and organic liquid fertilizer was carried out in the South and Central West of Ivory Coast during a period of two years in order to improve soil fertility in tomato crop. More specifically, it evaluated the effects of 4 doses of organic fertilizer (NPK 5-9-19), associated or not with mineral fertilizer (NPK 12-11-18) on the content of soil organic matter, C/N ratio, the sum of exchangeable bases, available phosphorus, CEC and pH. The experimental design was a split-plot, with four repetitions with mineral fertilizer as the primary factor, and organic fertilizer as secondary factor, at 4 doses (Lha-1): C0 = 0 (control), C1 = 2 5; C2 = C3 = 3.75; and 5. The results showed that   3.75 Lha-1 of fertilizer organic (NPK 5-9-19), associated with the low dose of mineral fertilizer (NPK 12-11-18) had the best positive impact on organic matter, sum of exchangeable bases, and available soil phosphorus. The treatment with 3.75 Lha-1 of organic fertilizer alone increased more CEC and soil pH while the contributions of 2.5 and 3.75 Lha-1 had the advantage of increased C/N ratio of the soil.

Key words: Organic fertilizers, mineral fertilizers, chemical property, fertility, soil.