1. Zubairu, A.M., M.K. Sandabe, R. Abdullahi, M.T. Buba and Y. Zarami, 2022. Effect of farmyard manure (FYM) and zinc fertilizer rates on zinc adsorption by sandy clay loam soil of Gongulong-yerima, Jere, Borno State, Nigeria. J. Emerging Technol. Innovative Res., 9: 338-348.
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2. Ngala, A.L., F.U. Digmari, J.B. Ndirmbula and R. Abdullahi, 2021. Effects of NPK, bio-fertilizers and manures on growth of maize (Zea mays L.) and soil nutrients content in Maiduguri, Nigeria. Eur. J. Agric. Food Sci., 3: 117-122.
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3. Chiroma, A.M., A.B. Alhassan, K. Usman, R. Abdullahi and A. Ibrahim, 2021. Soil physical properties and root growth of pearl millet as affected by ridge tillage and farmyard manure. J. Agric. Econ. Environ. Soc. Sci., 7: 89-107.
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4. Abdullahi, R., J.S. Kwari and A.M. Zubairu, 2021. Arbuscular mycorrhizal fungi association with some selected medicinal plants. Asian J. Soil Sci. Plant Nutr., 8: 1-6.
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5. Sheriff, H.H., M. Aliyu and R. Abdullahi, 2019. Effects of variety, fertilizer and fungicide on pearl millet downy mildew severity and yield in two different agro-ecological zones in Nigeria. J. Agripreneurship Sustainable Dev., 2: 76-86.
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6. Toh, S.C., S. Lihan, B.C.W. Yong, B.R. Tiang, R. Abdullahi and R. Edward, 2018. Isolation and characterisation of Arbuscular mycorrhizal (AM) fungi spores from selected plant roots and their rhizosphere soil environment. Malays. J. Microbiol., 14: 335-343.
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7. Toh, S.C., B.C.W. Yong and R. Abdullahi et al., 2018. Isolation and characterisation of Arbuscular mycorrhizal (AM) fungi spores from selected plant roots and their rhizosphere soil environment. Malaysian J. Microbiol., 10.21161/mjm.144187.
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8. Abdullahi, R., S. Lihan, R. Edward and S. Demie, 2015. Effect of arbuscular mycorrhizal fungi and poultry manure on growth and nutrients contents of maize in different soil type. J. Adv. Agric., 4: 428-437.
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9. Abdullahi, R., S. Lihan and R. Edward, 2015. Effects of short-term application of arbuscular mycorrhizal fungi and poultry manure on improvement of soil quality. Eur. J. Exp. Biol., 5: 23-30.
10. Abdullahi, R., S. Lihan and R. Edward, 2015. Effect of arbuscular mycorrhizal fungi and poultry manure on growth and nutrients uptake by maize under field condition. Int. J. Agric. Innov. Res., 4: 158-163.
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11. Kankam, F., E.N.K. Sowley and N.E. Oppong, 2014. Effect of poultry manure on the growth, yield and root-knot nematode (Meloidogyne spp.) infestation of carrot (Daucus carota L.). Arch. Phytopathol. Plant Prot., 48: 452-458.
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12. Abdullahi, R., S. Lihan and R. Edward, 2014. Isolation of indigenous arbuscular mycorrhizal fungi and selection of host plant for inoculum production. Int. J. Biosci., 5: 116-122.
13. Abdullahi, R., H.H. Sheriff and A. Buba, 2014. Effect of bio-fertilizer and organic manure on growth and nutrients content of pearl millet. J. Agric. Biol. Sci., 9: 352-355.
14. Abdullahi, R., S. Lihan, B.S. Carlos, M.L. Bilung, M.K. Mikal and F. Collick, 2013. Detection of oprL gene and antibiotic resistance of Pseudomonas aeruginosa from aquaculture environment. Eur. J. Exp. Biol., 3: 148-152.
15. Abdullahi, R., H.H. Sheriff and S. Lihan, 2013. Combine effect of bio-fertilizer and poultry manure on growth, nutrients uptake and microbial population associated with sesame Sesamum indicum L. in North-eastern Nigeria. J. Environ. Sci. Toxicol. Food Technol., 5: 60-65.
16. Abdullahi, R. and H.H. Sheriff, 2013. Effect of arbuscular mycorrhizal fungi and chemical fertilizer on growth and shoot nutrients content of onion under field condition in Northern Sudan Savanna of Nigeria. J. Agric. Vet. Sci., 3: 85-90.
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17. Abdullahi, R. and Z.A. Kura, 2010. Effect of pre-seeding treatment on germination of Moringa seeds. J. Nig. Assoc. Teachers Technol., 7: 81-84.
18. Abdullahi, R. and Z.A. Kura, 2010. Effect of neem oil and neem-treated jute bags on Callosobruchus maculates infestation in cowpea. J. Nig. Assoc. Teachers Technol., 7: 85-90.
19. Sandabe, M.K., M.T. Verinumbe and R. Abdullahi, 2007. Effects of phosphorus and arbuscular mycorrhizal (AM) fungi on the uptake of nutrients by maize (Zea mays L). Ann. Borno, 23: 145-154.