Browsing by Author "Kehinde Raheef Adebayo"

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    Development and evaluation of biomass-based alternative charcoal
    (Italian Society of Agricultural Engineering, 2020) Adeshina Fadeyibi; Kehinde Raheef Adebayo; Taiye Mayowa Obafemi; Abiodun Samson Olubo; Rasheed Amao Busari; Mohammed Gana Yisa
    Environmental issues resulting from production and application of wood charcoal can be addressed by using biomass briquettes as alternative. This research was undertaken to develop and evaluate briquette from jatropha, groundnut and melon seed residues. Samples of the briquette were formed from mixtures of 0.32-0.39 kg carbonised residues, 0.30-0.40 kg starch and 0.02- 0.04 kg water. Physical and mechanical properties of the briquette samples including calorific value, bulk density and breaking force were determined using standard methods. Box-Bekhen Design Methodology was used to determine the optimum briquette blend. The results showed that the optimal briquette blend gave values of 4711.87 kcal.kg–1 calorific value, 282.59 kg m–3 bulk density and 1.36 kN breaking force, with a desirability index of 61.5%. A comparative analysis of the properties of the optimal briquette with that of a wood charcoal indicates no significant difference (P<0.05). This implies that the briquette can serve as an alternative energy source for cooking in rural communities.
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    Impact of Magnetized Irrigation Water Treatment on Nutrients Uptake and Water Use Efficiency of Cowpea Cultivar (Vigna unguiculata L.).
    (UMYU Scientifica, Faculty of Natural and Applied Sciences, Umaru Musa Yar’adua University, Katsina, Nigeria., 2024-06-25) Kehinde Raheef Adebayo
    The study assessed the impact of magnetically treated water on the TVX-117 cowpea cultivar for nutrient uptakes and water use efficiency. The magnetic water improved absorption and nutrient assimilations that sustained cowpea growth. A rectangular magnetic water treatment unit of 230 mm x 150 mm x 130 mm designed using a metal plate of thickness 2 mm formed an enclosure for twelve pairs of neodymium magnets (N50 grade) of dimensions 50 mm x 25 mm x 10 mm. Irrigation water was treated with a magnetic flux of 1127.4 G and a mean flow rate of 2.86 litres per minute through the device. Irrigation of both treated and ordinary water was carried out by applying 1.43 L at a 3-day irrigation interval for a bucket experiment under a transparent polythene garden. A completely randomized design was applied and treatments were replicated ten times for both magnetized and non-magnetized irrigation treatments. There exist significant differences between initial cowpea nutrients and nutrient uptakes of the harvested cowpea as the coefficient of determination was R2 = 0.9801; p < 0.05. The results obtained indicated that Water Use Efficiency (WUE) for magnetized water-irrigated plants was 24.7% compared to 7.6% for control. There were significant differences between their WUEs as the coefficient of determination value was R2 = 0.8130; p < 0.05. Magnetized water improved water use efficiency that supported better nutrient uptakes by cowpea seeds.