Vol. 14 No. 1 (2026): Direct Research Journal of Engineering and Information Technology

View Vol. 14 No. 1 (2026): Direct Research Journal of Engineering and Information Technology

Published: 2026-01-14

Articles

$Hydroxyapatite HAp-urea composite based nano fertilizer constitutes a novel approach of incorporating variety of ionic species into HAp hexagonal lattice structure with control release capabilities. Evidently, it is a veritable and sustainable alternative to commercial fertilizer in enhancing plant yield in nutrient deficient soil. In this research, HAp doped with multi ionic species of Mg2+, Si4+ and Cu2+ (Ca10-w/2-x-ySiw+MgxCuy(PO4)6-w(OH)2-w) with nutrient and subsequently form a HAp-urea nano fertilizer composite via chemical precipitation route. The following HAp to nano-urea matrix-filler ratio 100 mL: 0.15 g was adopted. The crystallinity, chemical constituent and nanoparticle sizes was investigated using X-ray diffractometry (XRD), X-ray fluorescence (XRF), Transmission Electron Microscope (TEM), Brunauer–Emmett–Teller (BET) and Scanning Electron Microscopy (SEM). Micronutrient ion release of Ca2+, P5+, Mg2+ and Cu2+ was examined using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) in water sample and XRF in soil sample. Monitored plant foliage activities was analyzed by applying 10g of the produced HAp-urea nanofertilizer composite in comparison to 10g of commercial fertilizer on selected plants. Ultimately, the multidoped HAp-urea composite based nanofertilizer showed superior plant growth height (PGH) of HU: 54, HUMS: 58 and HUMSC: 56 cm as compared to commercial fertilizer with PGH of 36 cm.$

Multi doped Hydroxyapatite-Urea Nano fertilizer: Synthesis and Controlled Micronutrient Release

Ezekiel Iliya (Author)

1-11
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Design and Implementation of a Smart Multi Tank Water Filling and Monitoring System with Android APP Integration for Sustainable Water Resource Management

F. A. Aigbodioh, A. O. Imonigie, G. O. Nwokocha, S. E. Musah (Author)

100-111
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Design and Implementation of an Internet of Things (IoT) Based Automatic Fire Fighting Sprinkler System

Harry Ojata Abode , Benjamin Okpanachi (Author)

12-26
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Awareness and Practices on Smartphone Battery Drainage: A Cross-Sectional Study in Dodoma City Higher Education Institutions, Tanzania

Joel Rumanyika, January Ponera (Author)

27-37
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Improved Human-Centric Cyber security Framework for Protecting Home users from Social Engineering Attacks

Ganiyu Abiodun Salihu, Hassan Umar Suru, anlami Gabi , Muhammad Garba (Author)

38-49
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An Empirical Assessment of Cloud Computing Adoption in University Libraries in Niger State, Nigeria

Lami Akawu (Author)

50-57
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Modeling and Dynamic Analysis of a 9 MW DFIG-Based Grid-Connected Wind Energy Conversion System

Godwin Osariemen Igbinosa, Nosagieagbon Owomano Imarhiagbe, Urhomweonsa Ohihole Eribo, Gbenga Walter Bolarinwa, Aluko Olawale (Author)

58-72
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Design, Fabrication, and Experimental Validation of a Low-cost Neuromuscular Electrical Stimulator for the Prevention of Skeletal Muscle Atrophy

ThankGod Ukeh, J. Ekezie, G. I. N. Ndubuka, Daniel S. Odetunde, Mbabuike U. Ikenna (Author)

73-83
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Artificial Intelligence and Managerial Decision-Making in Manufacturing Firms in Delta State

Nwaedozie Jessica Chimebele, Aruoren Emmanuel, Kifordu Anthony (Author)

92-99
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Design and Development of an AI-Driven Mobile Application for Smart Menstrual Cycle Tracking Using Agile Methodology

Kingsley O. Igboji, Chinyere O. Mba, Chika T. Otubo (Author)

84-91
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Design and Implementation of a Smart Solar-powered Microgrid Monitoring and Fault Detection System for Sustainable Energy Management

F. A. Aigbodioh, A. O. Imonigie, Solomon Imafidon (Author)

112-121
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