| Phosphorus transformation in soils following co-application of charcoal and wood ash PD Johan, OH Ahmed, L Omar, NA Hasbullah Agronomy 11 (10), 2010, 2021 | 129 | 2021 |
| Effects of clinoptilolite zeolite on phosphorus dynamics and yield of Zea Mays L. cultivated on an acid soil H Nur Aainaa, O Haruna Ahmed, NM Ab Majid PLoS One 13 (9), e0204401, 2018 | 67 | 2018 |
| Reducing Egypt rock phosphate use in Zea mays cultivation on an acid soil using clinoptilolite zeolite HN Aainaa, OH Ahmed, S Kasim, NMA Majid Sustainable Agriculture Research 4 (1), 2014 | 20 | 2014 |
| Effects of amending phosphatic fertilizers with clinoptilolite zeolite on phosphorus availability and its fractionation in an acid soil NA Hasbullah, OH Ahmed, NM Ab Majid Applied Sciences 10 (9), 3162, 2020 | 12 | 2020 |
| Accumulation of soil carbon and phosphorus contents of a rehabilitated forest OH Ahmed, NA Hasbullah, NM Ab Majid The Scientific World Journal 10, 1988-1995, 2010 | 12 | 2010 |
| Phosphorus transformation in soils following co-application of charcoal and wood ash. Agronomy 11: 2010 PD Johan, OH Ahmed, L Omar, NA Hasbullah | 7 | 2021 |
| Use of clinoptilolite Zeolite to reduce Christmas Island rock phosphate use in Zea mays cultivation on an acid soil NMA Majid International Journal of Soil Science 9 (2), 55-66, 2014 | 7 | 2014 |
| Phosphorus Sorption following the Application of Charcoal and Sago (Metroxylon sagu) Bark Ash to Acid Soils PD Johan, OH Ahmed, NA Hasbullah, L Omar, P Paramisparam, ... Agronomy 12 (12), 3020, 2022 | 6 | 2022 |
| Zeolites to unlock phosphorus fixation in agriculture OH Ahmed, HN Aainaa, NMA Majid Universiti Putra Malaysia: Serdang, Malaysia, 188, 2017 | 6 | 2017 |
| Charcoal and Sago Bark Ash on pH Buffering Capacity and Phosphorus Leaching PD Johan, OH Ahmed, L Omar, NA Hasbullah Agronomy 11 (11), 2223, 2021 | 5 | 2021 |
| Optimisation of Charcoal and Sago (Metroxylon sagu) Bark Ash to Improve Phosphorus Availability in Acidic Soils PD Johan, OH Ahmed, A Maru, L Omar, NA Hasbullah Agronomy 11 (9), 1803, 2021 | 5 | 2021 |
| Use of Clinoptilolite Zeolite to Improve Efficiency of Phosphorus Use in Acid Soils NA Hasbullah Ph. D. Thesis, 2016 | 5 | 2016 |
| Improving selected chemical properties of a paddy soil in Sabah amended with calcium silicate: A Laboratory incubation study IQ Chong, EA Azman, JF Ng, R Ismail, A Awang, NA Hasbullah, R Murdad, ... Sustainability 14 (20), 13214, 2022 | 4 | 2022 |
| Use of clinoptilolite zeolite on selected soil chemical properties, dry matter production, nutrients uptake and use efficiency of Zea mays cultivated on an acid soil. NA Hasbullah, HA Osumanu, K Susilawati, M Nik International Journal of Agricultural Research 9 (3), 136-148, 2014 | 4 | 2014 |
| Effect of Oil Palm Decanter Cake on Soil Properties and Growth Response of Oil Palm Seedling in Nursery AA Rahman, NA Hasbullah, M Boyie 1ST POSTGRADUATE SEMINAR ON AGRICULTURE AND FORESTRY 2021 (PSAF 2021), 131, 2021 | 2 | 2021 |
| Effects of formulated and commercial liquid fertilizer on growth, yield and nutrients content of tomato (Lycopersicon esculentum Mill.) NA Rosidi Unpublished Master’s dissertation]. Universiti Putra Malaysia, 2018 | 1 | 2018 |
| Impact of simulated acid rain on chemical properties of Nyalau series soil and its leachate MH Ibrahim, S Kasim, OH Ahmed, M Rakib, M Rashid, NA Hasbullah, ... Scientific reports 14 (1), 1-11, 2024 | | 2024 |
| Influence of Agronomic Practices on the Yield of Oil Palm (Elaeis Guineensis Jacq.) Grown on Various Soil Management Groups. B Kayondo, MB Jalloh, NA Nur Aainaa, A IImas, P Selliah Malaysian Journal of Soil Science 27, 2023 | | 2023 |
| Growth response of oil palm seedling from decanter cake application as fertiliser substitute in nursery AA Rahman, NA Hasbullah, MB Jalloh IOP Conference Series: Earth and Environmental Science 1208 (1), 012046, 2023 | | 2023 |
| Effect of planting media on growth on pineapple Cv. madu seedlings by stem cutting technique MM Jubidin, MS Madom, NA Hasbullah Borneo Akademika 4, 8-13, 2020 | | 2020 |
Ahmed Osumanu HarunaProf. of Soil Fertility and Management, Universiti Islam Sultan Sharif Ali, UNISSA, BruneiVerified email at unissa.edu.bn
