International Journal of Agricultural Policy and Research

Original Research Article

Effect of chicken manure composting times on the lettuce agronomic parameters

Konaté Zoumana1*, Abobi Akré Hebert Damien1, Bayala Roger1 and Camara Maméri2

1University Jean Lorougnon Guédé of Daloa, Agro forestry Training and Research Unit. Department of Agro-pedology, Remote Sensing and SIG, BP 150 Daloa, Côte d’Ivoire
2National Agricultural Research Center; 01 BP 1740 Abidjan 01, Côte d’Ivoire.

*Corresponding Author E-mail: zoumko(at)

Tel.: + 225 48986475

Konaté Zoumana

Abobi Akré Hebert Damien

Bayala Roger

Camara Maméri

Article Number: IJAPR.21.013  |   Pages: 118-128  |   Vol. 9 (5), September 2021   |   DOI:

 Received: October 22, 2020  Accepted: November 20, 2020  Published: September 3, 2021


The direct application without composting of the droppings as practiced by the producers does not allow to sufficiently restore the fertility of the soils. The objective of this study was to assessing the effects of manure composting times on soil fertility and lettuce yield. The study was conducted using a Fisher block device. Each block consisted of 6 elementary parcels on which 14, 21, 28 and 35 day chicken manure composts represented by T14, T21, T28, T35, and uncomposted manure TP and control T0 (no manure) were randomly distributed. The contents of major elements (N, P, K), exchangeable bases (Ca2+, Mg2+), cationic exchange capacity (CEC) and trace metal elements (Fe2+, Zn2+, and Pb+) of the composts produced as well as the agronomic parameters of lettuce (average number of leaves, leaf area, crown diameter, total biomass) were evaluated. The T14 treatment resulted in high values of the chemical parameters of the composts and the yields of the lettuce. With a total biomass yield of 371.66 ± 15.46 kg.ha-1, the T14 treatment induced production gains of 244 kg.ha-1 and 52.43 kg.ha-1, respectively, compared to the T0 (no droppings) and TP (uncontaminated droppings) control treatments. The T14 treatment also reduced the levels of trace metal elements in the composts produced. The composting of chicken droppings for 14 days can be advised to market gardeners for production of lettuce at the dose of 40 t.ha-1.


Market gardeners, chicken droppings, compost, lettuce (Lactuca sativa L.).

How to Cite this Article

Konaté Z, Abobi AHD, Bayala R, Camara M(2021). Effect of chicken manure composting times on the lettuce agronomic parameters. Int. J. Agric. Pol. Res.9(5):118-128.

Author(s) retain the copyright of this article. Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.

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