World Journal of Engineering Research and Technology

Diallo Mamadou Aliou*, Barry Mamadou Alpha, Tonguino Sâa Poindo, Diallo Diariou, Sakouvogui Ansoumane

ABSTRACT

The general objective of this research is to characterize the irrigation water used by the SAGBAYA market gardening group in Faranah. For this we determined the physical parameters (temperature, turbidity, conductivity and mineralization) and chemical parameters (pH, chlorides, nitrates, iron and manganese) of irrigation water and then analyzed and interpreted the results. The research work that took place in the period from October 10, 2014 to June 20, 2015 was conducted in the field (in situ) and at the Water and Hygiene - Hydrotechnics - Civil Engineering Laboratory - UGAN Conakry. The physical and chemical parameters of the irrigation water were determined by measurements and by colorimetric, potentiometric and volumetric methods. After analysis, the results obtained showed that the irrigation water is characterized on average by: a temperature of 24.9oC; a pH of 4.98, a turbidity of 117.89 NTU, a conductivity of 215.94 micro-siemens/cm, a mineralization of 101.5 mg/l. The chemical analyzes showed an average presence of: 20.79 mg/l of chlorides, 49.94 mg/l of nitrates, 0.15 mg/l of iron and 0.68 mg/l of manganese. These results showed that the water used for watering is favorable for watering vegetable crops.

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