Valorization of Agro-industrial Bio-waste from Seed Cotton in the Restoration of Degraded Soils in the District of Korhogo in Northern Côte d'Ivoire

Main Article Content

Alui Konan Alphonse
Yao Saraka Didier Martial
Oro Zokou Franck
Yao-Kouamé Albert


The objective of this study was to restore degraded soils with organic manure from agro-industrial bio-waste (seed cotton) in the Department of Korhogo in Northern Côte d'Ivoire.

The research plots were set up in a Fisher block experimental design with four treatments, namely T0 (control soil), T1 (bio-waste at 1 month of biodegradation), T2 (bio-waste at 3 months of degradation) and T3 (bio-waste at 6 months of degradation).

On each of the treatments, bio-waste was applied using spreading technique and the variety F8128 of corn was sown to evaluate the agronomic performance of bio-waste. Four agronomic parameters were measured: Plant height, collar diameter, ear weight and grain yield. Likewise, the physical, physico-chemical and chemical analyses of the soil were performed before sowing and after corn harvesting.

The work was carried out from 2018 to 2019 in the district of Korhogo in Northern Côte d'Ivoire.

Our study shows significant increase in corn grain yield in each of the treatments (T1 = 2.26 T/ha; T2 = 1.98 T/ha and T3 = 1.48 T/ha) compared to the control (T0 = 1 T/ha). Laboratory analyses of the soil and bio-waste indicate a very low level of organic matter (MO varies from 0.55 to 0.77 in the soil of the experimental plot and good mineralization of the organic matter in the bio-waste regardless of the decomposition time (C/N varies from 12 to 13). After application of the bio-waste, the organic matter content (T3 = 10.28; T1 = 23.61 and T2 = 23.63 and nitrogen content (T3 = 0.69; T1 = 1.16 and T2 = 1.21 of the various treatments significantly increased compared to the control soil (MO = 0.66 and N = 0.013 The pH level increased where the organic manure was applied becoming slightly acidic (5.7 to 6.4) compared to the control that had strong acidic reaction (4.8 to 5.1). 

Based on our study, it is evident that organic fertilizer has positive effect on corn yield. The seed cotton bio-waste has had an improving effect on the degraded soil of in Northern Côte d’Ivoire.

Bio-waste, Côte d’Ivoire, corn, restoration, degraded soil.

Article Details

How to Cite
Alphonse, A. K., Didier Martial, Y. S., Franck, O. Z., & Albert, Y.-K. (2020). Valorization of Agro-industrial Bio-waste from Seed Cotton in the Restoration of Degraded Soils in the District of Korhogo in Northern Côte d’Ivoire. Journal of Experimental Agriculture International, 41(6), 1-10.
Original Research Article


Bied-Charreton M. The fight against desertification, a global cause. The State of the World, Paris, Discovery; 2007. French.

Ouandaogo N, Ouattara B, Pouya MB, Gnankambary Z, Nacro HB, Sedogo PM. 2016. Effects of organo-mineral fertilization and crop rotations on soil quality. International Journal and Biological and Chemical Sciences. 2016;10(2):904-918. French.

Roose E, Barthès B. Soil carbon erosion and its selectivity at the plot scale in Tropical and Mediterranean regions. In: Roose E, Lal R, Feller C, Barthès BS, editors. “Soil erosion and carbon dynamics”, eds., Advances in Soil Sciences, CRC Press, Boca Raton, Florida; 2006.

N’Guessan A, Diarrassouba N, Konan A, Nangha KY, Inza JF, Kouamé AY. Indicators of physical soil degradation in northern Côte d'Ivoire: The case of Boundiali and Ferkéssédougou. Africa Science. 2015;11(3). French.

YT. Climate, socio-economic changes and landscapes in Côte d'Ivoire. Synthesis Brief of Scientific Activities presented for the purpose of obtaining the habilitation to direct research. University of Science and Technology of Lille, France; 2005. French.

Yace I. Initiation to geology. The example of Côte d'Ivoire and West Africa. Petrology, Regional Geology. CEDA, SODEMI; 2002. French.

Koné B, Diatta S, Sylvester O, Yoro G, Camara M, Dome DD, Assa A. Estimate of the potential fertility of ferralsols by color. Canadian Journal of Soil Science. 2009;89:331-342. French.

Akanvou L, Akanvou R, Anguété K, Diarrassouba L. Cultivating maize well in Côte d'Ivoire. National Center for Agronomic Research (CNRA). Corn factsheet; 2006. French.

Boulet R, Chauvel A, Humbel FX, Lucas Y. Structural analysis and cartography in pedology I Taking into account the two-dimensional organization of soil coverage: toposequence studies and their main contributions to knowledge of the soil. Cah. ORSTOM, Ser. Pédol.1982;19(4): 309-321. French.

McKeague JA. 1978. Manual on soil sampling and methods of analysis. 2nd edition. Canadian Society of Soil Science, Ottawa; 1978.

Blake RG, Hartage KH. Bulk density. In: Klute A, edidor. Methods of soils analysis. Part1. 2nd edition. Madison, WI, USA: American Society of Agronomy; 1986.

Boyer J. Exchangeable aluminum: agronomic implications, evaluation and correction of its toxicity in tropical soils. ORSTOM notebook, Pedological Series. 1976;19(4):259-269. French.

Yoboué KE. Pedogeochemical and mineralogical studies of the browned soils derived from the formations of the volcanosedimentary complex of anikro and kahankro (Toumodi) in the central south of the Ivory Coast. PhD Thesis Es-Sciences, University of Cocody, Abidjan, Cote d'Ivoire; 2010. French.

Sauzet O, Cammas C, Gilliot JM, Bajard M, Montagne D. Development of a novel image analysis procedure to quantify biological porosity and illuvial clay in large soil thin sections. Geoderma. 2017;292: 135-148.
DOI: 10.1016 / j.geoderma.2017.01.004

Ben HH, Karbout N, Kridan K, Sanaa M, Jedidi N. Characterization of the colloidal mineral and organic fractions of the surface horizons of the toposequence soils in the semi-arid zone of Tunisia. Study and Management of Soils. 2012;19:105-118. French.

Le Villo M, Arrouays D, Deslais W, Daroussin J, Le Bissonais Y, Clergeot D. Estimate of the quantities of exogenous organic matter necessary to restore and maintain French loamy soils at a given organic level. Study and Management of Soils. 2001;8(1):47-63. French.