| 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 | 231 | 2021 |
| Soil nutrient retention and pH buffering capacity are enhanced by calciprill and sodium silicate JF Ng, OH Ahmed, MB Jalloh, L Omar, YM Kwan, AA Musah, KH Poong Agronomy 12 (1), 219, 2022 | 79 | 2022 |
| Enhancing nitrogen availability from urea using clinoptilolite zeolite O Latifah, OH Ahmed, NMA Majid Geoderma 306, 152-159, 2017 | 74 | 2017 |
| Soil pH buffering capacity and nitrogen availability following compost application in a tropical acid soil O Latifah, OH Ahmed, NMA Majid Compost Science & Utilization 26 (1), 1-15, 2018 | 70 | 2018 |
| Improving ammonium and nitrate release from urea using clinoptilolite zeolite and compost produced from agricultural wastes L Omar, OH Ahmed, NMA Majid The Scientific World Journal 2015 (1), 574201, 2015 | 68 | 2015 |
| Adsorption and desorption of nitrogen, phosphorus, potassium, and soil buffering capacity following application of chicken litter biochar to an acid soil P Palanivell, OH Ahmed, O Latifah, NM Abdul Majid Applied sciences 10 (1), 295, 2019 | 65 | 2019 |
| Compost maturity and nitrogen availability by co-composting of paddy husk and chicken manure amended with clinoptilolite zeolite O Latifah, OH Ahmed, K Susilawati, NM Majid Waste Management & Research 33 (4), 322-331, 2015 | 58 | 2015 |
| Minimizing ammonia volatilization in waterlogged soils through mixing of urea with zeolite and sago waste water OL Omar, OH Ahmed, AN Muhamad International Journal of Physical Sciences 5 (14), 2193-2197, 2010 | 58 | 2010 |
| Co-application of charcoal and wood ash to improve potassium availability in tropical mineral acid soils P Paramisparam, OH Ahmed, L Omar, HY Ch’ng, PD Johan, NH Hamidi Agronomy 11 (10), 2081, 2021 | 36 | 2021 |
| Biochar and clinoptilolite zeolite on selected chemical properties of soil cultivated with maize (Zea mays L.) SW Zaidun, MB Jalloh, A Awang, LM Sam, NA Besar, B Musta, OH Ahmed, ... Eurasian Journal of Soil Science 8 (1), 1-10, 2019 | 31 | 2019 |
| Reducing ammonia loss from urea and improving soil exchangeable ammonium and available nitrate in non waterlogged soils through mixing zeolite and sago (Metroxylon sagu) waste … O Latifah, OH Ahmed, AMN Muhamad Int. J. Phys. Sci 6 (4), 866-870, 2011 | 30 | 2011 |
| Soil nitrogen sorption using charcoal and wood ash NH Hamidi, OH Ahmed, L Omar, HY Ch’ng Agronomy 11 (9), 1801, 2021 | 29 | 2021 |
| Enhancing nitrogen availability, ammonium adsorption-desorption, and soil pH buffering capacity using composted paddy husk O Latifah, OH Ahmed, NM Abdul Majid Eurasian soil science 50, 1483-1493, 2017 | 26 | 2017 |
| Ammonia loss, ammonium and nitrate accumulation from mixing urea with zeolite and peat soil water under waterlogged condition O Latifah, OH Ahmed, AMN Muhamad African Journal of Biotechnology 10 (17), 3365-3369, 2011 | 25 | 2011 |
| Nitrogen, phosphorus, and potassium adsorption and desorption improvement and soil buffering capacity using clinoptilolite zeolite P Palanivell, OH Ahmed, L Omar, NM Abdul Majid Agronomy 11 (2), 379, 2021 | 23 | 2021 |
| Rice husk compost production and use in mitigating ammonia volatilization from urea L Omar, OH Ahmed, M Boyie Jalloh, NM Abdul Majid Sustainability 13 (4), 1832, 2021 | 22 | 2021 |
| Soil Nitrogen Fractions, Nitrogen Use Efficiency and Yield of Zea mays L. Grown on a Tropical Acid Soil Treated with Composts and Clinoptilolite Zeolite L Omar, OH Ahmed, MB Jalloh, AM Nik Muhamad Applied Sciences 10 (12), 4139, 2020 | 21 | 2020 |
| Short Term Enhancement of Nutrients Availability in Zea mays L. Cultivation on an Acid Soil Using Compost and Clinoptilolite Zeolite O Latifah, OH Ahmed, NMA Majid Compost Science & Utilization 25 (1), 22-35, 2017 | 21 | 2017 |
| Enhancing nutrient use efficiency of maize (Zea mays L.) from mixing urea with zeolite and peat soil water L Omar, OH Ahmed, NMA Majid International Journal of the Physical Sciences 6 (14), 3330-3335, 2011 | 20 | 2011 |
| Enhancing nutrients use efficiency and grain yield of Zea mays L. cultivated on a tropical acid soil using paddy husk compost and clinoptilolite zeolite. O Latifah, OH AHMED, NIKM ABDUL MAJID Bulgarian Journal of Agricultural Science 23 (3), 2017 | 19 | 2017 |
Ahmed Osumanu HarunaProf. of Soil Fertility and Management, Universiti Islam Sultan Sharif Ali, UNISSA, BruneiVerified email at unissa.edu.bn