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ISSN:2394-3661 | Crossref DOI | SJIF: 5.138 | PIF: 3.854

International Journal of Engineering and Applied Sciences

(An ISO 9001:2008 Certified Online and Print Journal)

Impact of drought on the physicochemical properties of a hydromorphic soil in Bouake (central Cote dIvoire)

( Volume 5 Issue 10,October 2018 ) OPEN ACCESS
Author(s):

NGANZOUA Kouame Rene, ADECHINA Olayossimi, OUATTARA Amidou, KOUAME Etienne

Abstract:

Drought is a constraint that preoccupies the farming community in hydromorphic soils. The purpose of this study is to evaluate the impact of drought on the physico-chemical properties of the hydromorphic soils of Bouaké. To do so, a soil profile 150 cm long and 75 cm wide, with 100 cm depth was opened and described. It is a hydromorphic Renkosol (arenic gleyic) soil that has developed under an equatorial four-season climate, including two rainy seasons and two dry seasons. It presents a temporary hydromorphy that varies with the seasons. The physicochemical analyzes show a soil that is not very acidic and very depleted of nutrients under the effect of drought, notably in nitrogen and phosphorus, in CEC as well as in exchangeable cations (K +, Mg ++ and Ca ++). However, the soil is rich in organic matter and the very high iron content exposes the area to iron toxicity. The presence of a water table around 70 cm attenuates the effects of the drought of the hydromorphic soil making it suitable for rainfed agriculture. This makes the hydromorphic soil of central Côte d'Ivoire a fragile ecosystem whose improvement of its nutritional quality can be done by the practice of the cultivation technique and an efficient fertilizer supply.

DOI DOI :

https://dx.doi.org/10.31873/IJEAS.5.10.15

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