Direct Research Journal of Engineering and Information Technology

About the Journal

Direct Research Journal of Engineering and Information Technology (DRJEIT) (ISSN 2354-4155) is an international open-access journal. The journal is currently accepting papers for publication in its monthly issue in English in all areas of Engineering, physical science, and Information Technology. We are looking forward to strict compliance with the modern age standards in all these fields.

Submit your manuscript using the submission link Submit Manuscript

ARTICLE PROCESSING COST = 655USD FOR AUTHOR OTHER COUNTRIES OR 55000 NAIRA FOR NIGERIA.

AUTHORS CAN APPLY FOR PARTIAL WAIVER TO THE JOURNAL EDITORIAL AT editorialoffice@directresearchpublisher.org

Indexed in

JISC

Scilit

Current Issue

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

Harry Ojata Abode , Benjamin Okpanachi (Author)

12-26
- PDF

View All Issues

Direct Research Journal of Engineering and Information Technology

About the Journal

Current Issue

Articles

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

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

Latest publications

Information

Make a Submission