Items where Author is "Osumanu Haruna Ahmed"

Article

Lee Yit Leng and Osumanu Haruna Ahmed and Mohamadu Boyie Jalloh and Azwan Awang and Norawanis Abdul Razak and Adiza Alhassan Musah and Syahirah Shahlehi (2023) Brief review: climate change and its impact on mango pests and diseases. Journal of Agriculture and Crops, 9. pp. 1-10. ISSN 2413-886X

Nur Hidayah Hamidi and Osumanu Haruna Ahmed and Latifah Omar and Huck Ywih Ch’ng and Prisca Divra Johan and Puvan Paramisparam and Adiza Alhassan Musah and Mohamadu Boyie Jalloh (2023) Charcoal and Sago Bark Ash Regulates Ammonium Adsorption and Desorption in an Acid Soil. Sustainability, 15. pp. 1-9.

Maru Ali and Osumanu Haruna Ahmed and Mohamadu Boyie Jalloh and Walter Charles Primus and Adiza Alhassan Musah and Ng, Ji Feng (2023) Co-Composted Chicken Litter Biochar Increases Soil Nutrient Availability and Yield of Oryza sativa L. Land, 12. pp. 1-20.

Prisca Divra Johan and Osumanu Haruna Ahmed and Nur Aainaa Hasbullah and Latifah Omar and Puvan Paramisparam and Nur Hidayah Hamidi and Mohamadu Boyie Jalloh and Adiza Alhassan Musah (2022) Phosphorus sorption following the application of charcoal and sago (metroxylon sagu) bark ash to acid soils. Agronomy, 12 (3020). pp. 1-15.

Ivy Quirinus Chong and Elisa Azura Azman and Ng, Ji Feng and Roslan Ismail and Azwan Awang and Nur Aainaa Hasbullah and Rosmah Murdad and Osumanu Haruna Ahmed and Adiza Alhassan Musah and Md. Amirul Alam and Normah Awang Besar @ Raffie and Nor Elliza Tajidin and Mohamadu Boyie Jalloh (2022) Improving Selected Chemical Properties of a Paddy Soil in Sabah Amended with Calcium Silicate: A Laboratory Incubation Study. Sustainability, 14. pp. 1-13. ISSN 2071-1050

Ji Feng Ng and Osumanu Haruna Ahmed and Latifah Omar and Mohamadu Boyie Jalloh and Yee Min Kwan and Ken Heong Poong and Adiza Alhassan Musah (2021) Combined use of calciprill and sodium silicate improves chemical properties of low-ph soil. Agronomy, 11 (2070). pp. 1-18. ISSN 2073-4395

Prisca Divra Johan and Osumanu Haruna Ahmed and Latifah Omar and Nur Aainaa Hasbullah (2021) Phosphorus transformation in soils following co-application of charcoal and wood ash. Agronomy, 11 (2010). pp. 1-25. ISSN 2073-4395

Latifah Omar and Osumanu Haruna Ahmed and Mohamadu Boyie Jalloh and Nik Muhamad Abdul Majid (2021) Rice husk compost production and use in mitigating ammonia volatilization from urea. Sustainability, 13. pp. 1-23. ISSN 20711050

Nur Hidayah Hamidi and Osumanu Haruna Ahmed and Latifah Omar and Huck, Ywih Ch’ng and Prisca Divra Johan and Puvan Paramisparam and Mohamadu Boyie Jalloh (2021) Acid Soils Nitrogen Leaching and Buffering Capacity Mitigation Using Charcoal and Sago Bark Ash. Sustainability, 13. pp. 1-17. ISSN 2071-1050

Prisca Divra Johan and Osumanu Haruna Ahmed and Latifah Omar and Nur Aainaa Hasbullah (2021) Charcoal and Sago Bark Ash on pH Buffering Capacity and Phosphorus Leaching. Agronomy, 11. pp. 1-20. ISSN 2073-4395

Kevin Muyang Tawie Sulok and Osumanu Haruna Ahmed and Choy, Yuen Khew and Mohamadu Boyie Jalloh and Adiza Alhassan Musah and Arifin Abdu (2021) Chemical and biological characteristics of organic amendments produced from selected agro-wastes with potential for sustaining soil health: a laboratory assessment. Sustainability, 13 (9). pp. 1-15. ISSN 2071-1050

Kevin Muyang Tawie Sulok and Osumanu Haruna Ahmed and Choy Yuen Khew and Jarroop Augustine Mercer Zehnder and Pei, Sing Lai and Mohamadu Boyie Jalloh and Adiza Alhassan Musah and Azwan Awang and Arifin Abdu (2021) Effects of Organic Amendments Produced from Agro-Wastes on Sandy Soil Properties and Black Pepper Morpho-Physiology and Yield. Agronomy, 11. pp. 1-24. ISSN 2073-4395

Yit, Leng Lee and Osumanu Haruna Ahmed and Samsuri Abdul Wahid and Mohamadu Boyie Jalloh and Adiza Alhassan Muzah (2021) Nutrient release and ammonia volatilization from biochar-blended fertilizer with and without densification. Agronomy, 11. pp. 1-16. ISSN 2073-4395

Latifah Omar and Osumanu Haruna Ahmed and Mohamadu Boyie Jalloh and Nik Muhamad Abdul Majid (2021) Rice husk compost production and use in mitigating ammonia volatilization from urea. Sustainability. ISSN 2071-1050

Wendy Luta and Osumanu Haruna Ahmed and Latifah Omar and Roland Kueh Jui Heng and Liza Nuriati Lim Kim Choo and Mohamadu Boyie Jalloh and Adiza Alhassan Musah and Arifin Abdu (2021) Water Table Fluctuation and Methane Emission in Pineapples (Ananas comosus (L.) Merr.) Cultivated on a Tropical Peatland. Agronomy, 11. pp. 1-16. ISSN 2073-4395

Nur Aainaa Hasbullah and Osumanu Haruna Ahmed and Nik Muhamad Ab Majid (2020) Effects of Amending Phosphatic Fertilizers with Clinoptilolite Zeolite on Phosphorus Availability and Its Fractionation in an Acid Soil. Applied Sciences, 10 (3152). pp. 1-15. ISSN 2076-3417

Latifah Omar and Osumanu Haruna Ahmed and Mohamadu Boyie Jalloh and Abdul Majid Nik Muhamad (2020) Soil Nitrogen Fractions, Nitrogen Use Efficiency and Yield of Zea mays L. Grown on a Tropical Acid Soil Treated with Composts and Clinoptilolite Zeolite. Applied sciences, 10 (4139). pp. 1-16.

Latifah Omar and Osumanu Haruna Ahmed and Mohamadu Boyie Jalloh and Abdul Majid Nik Muhamad (2020) Soil Nitrogen Fractions, Nitrogen Use Efficiency and Yield of Zea mays L. Grown on a Tropical Acid Soil Treated with Composts and Clinoptilolite Zeolite. Applied Sciences, 10 (12). pp. 1-16. ISSN 2076-3417

Lee, Yit Leng and Osumanu Haruna Ahmed and Mohamadu Boyie Jalloh (2019) Brief review on climate change and tropical peatlands. Geoscience Frontiers, 10 (2). pp. 373-380.

Siti Wardah Zaidun and Mohamadu Boyie Jalloh and Azwan Awang and Lum, Mok Sam and Normah Awang Besar and Baba Musta and Osumanu Haruna Ahmed and Latifah Omar (2019) Biochar and clinoptilolite zeolite on selected chemical properties of soil cultivated with maize (Zea mays L.). Eurasian Journal of Soil Science, 8 (1). pp. 1-10. ISSN 2147-4249

Hasbullah Nur Aainaa and Osumanu Haruna Ahmed and Nik Muhamad Ab. Majid (2018) Effects of clinoptilolite zeolite on phosphorus dynamics and yield of Zea Mays L. cultivated on an acid soil. PLoS ONE (Public Library of Science). pp. 1-19.

Huck Ywih Ch'ng and Osumanu Haruna Ahmed and Nik Muhamad Ab. Majid and Mohamadu Boyie Jalloh (2017) Reducing soil phosphorus fixation to improve yield of zea mays l. cultivation on a tropical acid soil using compost and biochar derived from agro-industrial wastes. Compost Science and Utilization, 25 (2). pp. 82-94. ISSN 1065-657X (P-ISSN) , 2326-2397 (E-ISSN)

Mohd Rashid Mohd Rakib and Choon, Fah Joseph Bong and Ahmad Khairulmazmi and Abu Seman Idris and Mohamadu Boyie Jalloh and Osumanu Haruna Ahmed (2017) Association of copper and zinc levels in oil palm (Elaeis guineensis) to the spatial distribution of Ganoderma species in the plantations on peat. Journal of Phytopatology, 165 (4). pp. 276-282. ISSN 1439-0434

Mohd Rashid Mohd Rakib and Choon-Fah Joseph Bong and Ahmad Khairulmazmi and Abu Seman Idris and Mohamadu Boyie Jalloh and Osumanu Haruna Ahmed (2017) Association of copper and zinc levels in oil palm ( elaeis guineensis ) to the spatial distribution of ganoderma species in the plantations on peat. Journal of Phytopathology, 165. pp. 276-282. ISSN 1439-0434

Mohamadu Boyie Jalloh and Wan Sulaiman Wan Harun and Jamal Talib and Mohd Fauzi Ramlan and Rajan Amartalingam and Christopher Teh Boon Sung and Osumanu Haruna Ahmed (2009) A simulation model estimates of the intercropping advantage of an immature-rubber, banana and pineapple system. American Journal of Agricultural and Biological Sciences, 4. pp. 249-254. ISSN 1557-4989 (P-ISSN) , 1557-4997 (E-ISSN)

Zuraidah Yahya and Aminuddin Husin and Jamal Talib and Jamarei Othman and Osumanu Haruna Ahmed and Jalloh, Mohamadu Boyie (2010) Oil palm (Elaeis guineensis) roots response to mechanization in Bernam series soil. American Journal of Applied Sciences, 7 (3). pp. 343-348. ISSN 1546-9239

M. H. Akbar and Osumanu Haruna Ahmed and Askiah S. Jamaluddin and Nik Muhamad A. Majid and Abdul Hamid H and Jusop S. and Affendy Hassan and K. H. Yusof and Arifin Abdu (2010) Differences in soil physical and chemical properties of rehabilitated and secondary forests. American Journal of Applied Sciences, 7 (9). pp. 1200-1209. ISSN 1546-9239

Zuraidah Yahya and Aminuddin Husin and Jamal Talib and Jamarei Othman and Osumanu Haruna Ahmed and Jalloh, Mohamadu Boyie (2010) Soil compaction and oil palm (Elaeis guineensis) yield in a clay textured soil. American Journal of Agricultural and Biological Science, 5 (1). pp. 15-19. ISSN 1557-4989

Zuraidah Yahya and Aminuddin Husin and Jamal Talib and Jamarei Othman and Osumanu Haruna Ahmed and Jalloh, Mohamadu Boyie (2009) Machinery compaction effects on physical properties of Bernam Series in an Oil Palm Plantation. American Journal of Applied Sciences, 6 (12). pp. 2006-2009. ISSN 1546-9239

Susilawati Kasim and Osumanu Haruna Ahmed and Nik Muhamad A. Majid and Mohd Khanif Yusop and Jalloh, Mohamadu Boyie (2009) Reduction of ammonia loss by mixing urea with liquid humic and fulvic acids isolated from tropical peat soil. American Journal of Agricultural and Biological Science, 4 (1). pp. 18-23. ISSN 1557-4989

Lee, Yit Leng and Osumanu Haruna Ahmed and Nik Muhamad A. Majid and Jalloh, Mohamadu Boyie (2009) Organic matter, carbon and humic acids in rehabilitated and secondary forest soils. American Journal of Applied Sciences, 6 (5). pp. 824-828. ISSN 1546-9239

Osumanu Haruna Ahmed and Aminuddin Husin and Husni M.H. Ahmad and Jalloh, Mohamadu Boyie and Anuar A. Rahim and Nik Muhamad A. Majid (2009) Enhancing the urea-N use efficiency in maize (Zea mays) cultivation on acid soils using urea amended with zeolite and TSP. American Journal of Applied Sciences, 6 (5). pp. 829-833. ISSN 1546-9239

Shamsuddin Rosliza and Jalloh, Mohamadu Boyie and Osumanu Haruna Ahmed and Kasim Susilawati and Nik Muhamad A. Majid (2009) Simple and rapid method of isolating humic acids from tropical peat soils (saprists). American Journal of Applied Sciences, 6 (5). pp. 820-823. ISSN 1546-9239

H., Claudia H. Chen and Osumanu Haruna Ahmed and Nik Muhamad A. Majid and Jalloh, Mohamadu Boyie (2009) Reduction of isolation period of coal humic acids. American Journal of Applied Sciences, 6 (7). pp. 1327-1330. ISSN 1546-9239

Susilawati Kasim and Osumanu Haruna Ahmed and Nik Muhamad A. Majid and Mohd Khanif Yusop and Jalloh, Mohamadu Boyie (2009) Effect of organic based N fertilizer on dry matter (Zea mays L.), Ammonium and nitrate recovery in an acid soil of Sarawak, Malaysia. American Journal of Applied Sciences, 6 (7). pp. 1289-1294. ISSN 1546-9239

C. H., Ywih and Osumanu Haruna Ahmed and Nik Muhamad A. Majid and Jalloh, Mohamadu Boyie (2009) Effects of converting secondary forest on tropical peat soil to oil palm plantation on carbon storage. American Journal of Agricultural and Biological Science, 4 (2). pp. 123-130. ISSN 1557-4989

Zuraidah Yahya and Aminuddin Husin and Jamal Talib and Jamarei Othman and Siti Zauyah Darus and Osumanu Haruna Ahmed and Jalloh, Mohamadu Boyie (2011) Pores reconfiguration in compacted Bernam series soil. American Journal of Applied Sciences, 8 (3). pp. 212-216. ISSN 1546-9239

B.T. Saga and Osumanu Haruna Ahmed and Askiah S. Jamaluddin and Abdul Hamid H and Shamshuddin Jusop and Nik Muhamad A. Majid and Affendy Hassan and K. H. Yusof and Arifin Abdu (2010) Selected soil morphological, mineralogical and sesquioxide properties of rehabilitated and secondary forests. American Journal of Environmental Sciences, 6 (4). pp. 389-394. ISSN 1553-345X (In Press)