1.Comparison of Selected Chemical Properties of Peat Swamp Soil Before and After Timber Harvesting

作　　者：Salimin, Muhamad Ismawi ;Gandaseca, Seca ;Ahmed, Osumanu Haruna 等

出　　处：American Journal of Environmental Sciences. 2010 ;6(2):164-167.doi:10.3844/ajessp.2010.164.167

出版社：Science Publications

文章 ID：77212661

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2.Effect of Converting Secondary Tropical Peat Swamp Forest into Oil Palm Plantation on Selected Peat Soil Physical Properties

作　　者：Firdaus, Mohd Suffian ;Gandaseca, Seca ;Ahmed, Osumanu Haruna 等

出　　处：American Journal of Environmental Sciences. 2010 ;6(4):402-405.doi:10.3844/ajessp.2010.402.405

出版社：Science Publications

文章 ID：77212696

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3.Comparison of Selected Soil Chemical Properties of Two Different Mangrove Forests in Sarawak

作　　者：Rambok, Empi ;Gandaseca, Seca ;Ahmed, Osumanu Haruna 等

出　　处：American Journal of Environmental Sciences. 2010 ;6(5):438-441.doi:10.3844/ajessp.2010.438.441

出版社：Science Publications

文章 ID：77212701

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4.Reduction of Ammonia Volatilization through Mixing Urea with Humic and Fulvic Acids isolated from Palm Oil Mill Effluent Sludge

作　　者：Rosliza, Shamsuddin ;Ahmed, Osumanu Haruna ;Majid, Nik Muhamad Ab. 等

出　　处：American Journal of Environmental Sciences. 2009 ;5(3):382-386.doi:10.3844/ajessp.2009.382.386

出版社：Science Publications

文章 ID：77212766

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5.Reduction of Ammonia Loss from Urea through Mixing with Humic Acids Isolated from Peat Soil (Saprists)

作　　者：Bernard, Regis ;Ahmed, Osumanu Haruna ;Majid, Nik Muhamad Ab. 等

出　　处：American Journal of Environmental Sciences. 2009 ;5(3):393-397.doi:10.3844/ajessp.2009.393.397

出版社：Science Publications

文章 ID：77212768

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6.Effects of Converting Secondary Forest to Oil Palm Plantation on Peat Soil Carbon and Nitrogen and other Soil Chemical Properties

作　　者：Muniandy, Makilan ;Ahmed, Osumanu Haruna ;Majid, Nik Muhamad Ab. 等

出　　处：American Journal of Environmental Sciences. 2009 ;5(3):406-412.doi:10.3844/ajessp.2009.406.412

出版社：Science Publications

文章 ID：77212770

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7.Reducing Ammonia Loss from Urea by Mixing with Humic and Fulvic Acids Isolated from Coal

作　　者：Reeza, Ameera Abdul ;Ahmed, Osumanu Haruna ;Majid, Nik Muhamad Nik Ab. 等

出　　处：American Journal of Environmental Sciences. 2009 ;5(3):420-426.doi:10.3844/ajessp.2009.420.426

出版社：Science Publications

文章 ID：77212772

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8.Effect of Mixing Urea with Humic Acid and Acid Sulphate Soil on Ammonia Loss, Exchangeable Ammonium and Available Nitrate

作　　者：Yusuff, Mohd Taufik Mohd ;Ahmed, Osumanu Haruna ;Majid, Nik Muhamad Ab

出　　处：American Journal of Environmental Sciences. 2009 ;5(5):588-591.doi:10.3844/ajessp.2009.588.591

出版社：Science Publications

文章 ID：77212793

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9.Controlling Ammonia Volatilization by Mixing Urea with Humic Acid, Fulvic Acid, Triple Superphosphate and Muriate of Potash

作　　者：Rosliza, Shamsuddin ;Ahmed, Osumanu Haruna ;Majid, Nik Muhamad Ab.

出　　处：American Journal of Environmental Sciences. 2009 ;5(5):605-609.doi:10.3844/ajessp.2009.605.609

出版社：Science Publications

文章 ID：77212796

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10.Effect of Grain Size on Selected Physico-Chemical Properties of Clay

作　　者：Ahmed, Osumanu Haruna ;Majid, Nik Muhamad Ab. ;Jalloh, Mohamadu Boyie

出　　处：American Journal of Environmental Sciences. 2009 ;5(5):610-612.doi:10.3844/ajessp.2009.610.612

出版社：Science Publications

文章 ID：77212797

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