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| 1 | Effects of biochar amendment and nitrogen fertilization on soil microbial biomass pools in an Alfisol under rain-fed rice cultivation显示文摘Field studies were conducted over 2 years to determine the response of soil microbial biomass pool to biochar and N fertilizer combinations in a rain-fed rice cropping system.Biochar was applied at four doses:0 t ha^(−1),3 t ha^(−1),6 t ha^(−1) and 12 t ha^(−1) in combination with N fertilizer at four rates:0 kg ha^(−1),30 kg ha^(−1),60 kg ha^(−1) and 90 kg ha^(−1) to a Typic Paleustalf Alfisol.Soil samples from two depths(0-10 and 10-20 cm)were collected to determine microbial biomass C(MBC),N(MBN),P(MBP),MBC/N ratio,MBC/P ratio,soil CO_(2) flux,microbial qCO_(2),cultivable bacterial and fungal abundance.Biochar and N fertilizer combination effects on MBC,MBN and MBP pools were dependent on biochar doses,N fertilizer rates and soil depth.MBC/N and MBC/P ratios were decreased after 2 years.Soil CO_(2) flux was maximum at post-seeding stage of rice plant,while decreasing trends occurred at active tillering and harvest stage.Increasing doses of biochar irrespective of its combination with N fertilizer rates decreased CO_(2) flux and microbial qCO_(2).Combinations of biochar and N fertilizer increased fungal/bacterial ratio and induced a shift to a more fungal-dominated population after 2 years.Our results sug-gest that combination of biochar doses(3-12 t ha^(−1))with N fertilizer rates had stimulatory effects on microbial biomass pools and activity with positive implications for organic carbon accumulation,nitrogen(N)and phosphorus(P)retention in tropical soils. | Segun Oladele Adebayo Adeyemo Ajoke Adegaiye Moses Awodun | 2019 | Biochar2019，1，2： | 6 |
| 2 | Polybrominated diphenyl ethers(PBDEs)concentrations in soil,sediment and water samples around electronic wastes dumpsites in Lagos,Nigeria显示文摘Polybrominated diphenyl ethers(PBDEs)were listed in the Stockholm Convention as POPs because of their bio-accumulative,long-range and toxicity characteristics.Therefore,these should be managed and assessed by Parties of the convention in an environmentally sound manner.This present study assessed the status of PBDEs contamination at e-waste dumpsites in Lagos,Nigeria.Soil and sediment samples were collected from 3 e-waste dumpsites and water samples were collected from rain water ponds located within the e-waste dumpsites vicinities and control sites over a period of two years.The concentrations of ∑7PBDEs in soils from the e-waste dumpsites at 0e15 cm depth for the first and second year ranged from 141 to 302 ngg^(-1)dry weight,respectively while that of the control soils was 13.2 e27.2ngg^(-1)dry weight.These high concentrations may be attributed to the fact that open burning of electronic waste was the regular method of reducing the volume of e-waste at the sites.PBDE levels across the soil profile from 0 to 45 cm depth showed a gradual increase in PBDEs accumulation in the topsoil and migration into the sub-soil over the period of 2 years,but with no significant difference(pvalue=0.89).Sediments and water from the rain water ponds around the dumpsites were found to be contaminated by PBDEs with levels ranging from 51.4 to 85.8ngg^(-1)and 14.4 to 27.4ngg^(-1),respectively,while levels in control for sediment and water are 11.5ngg^(-1)and 2.43ngg^(-1)respectively.These,however indicates that there was significance difference between the PBDEs levels in water and sediment from the study sites with those of their respective controls(p-value for water was 0.01,while that for sediment was 0.03).The levels of PBDEs in this study sites were higher than those of the respective control.The range of PBDEs in e-waste dumpsites was comparable to those reported in USA and Europe but lower than those from China.Environmental samples from the e-waste dumpsites in Lagos were contaminated with PBDEs,there is therefore the need for proper disposal methods for end-of-life products especially those containing PBDEs in Nigeria. | Oloruntoba Kike Omotayo Sindiku Oladele Osibanjo Roland Weber | 2022 | Emerging Contaminants2022，8，1： | 2 |
| 3 | 加纳阿善堤地区农户参与稻田项目的决定因素研究显示文摘本文对加纳阿哈福阿诺南区(Ahafo Ano Southdistrict)农户参与稻田项目的决定因素进行研究。稻田项目的实施,主要基于加纳稻米消费的扩张,导致了对生产自给的需求。为此,日本的一些机构在加纳的较低洼地区引入了稻米的生产。当然,在参与稻田项目的全部三阶段(1997—2001,2002—2004和2004—2009)的农户中,也存在着不同的问题。因此,在前两个阶段结束和第三个阶段接近完成的情况下,研究农户参与稻田项目的决定因素,从而促进项目逐步完善就显得尤为重要。由于稻田开发项目主要集中在阿哈福阿诺南区,这一地区分布有主要的流域,因此,本研究也主要在此地区进行。受访者主要从5个村庄中随机抽取,这5个村庄涵盖了项目的所有3个阶段,共选取了225名农民,通过结构式问卷调查方式搜集了相关资料。论文运用描述性统计方法分析了样本农民的社会经济特点,同时运用Probit模型对影响农户参与稻田项目的决定因素进行了研究。结果表明,样本中多数农民为50岁以下男性,他们具有较高的教育水平,同时信奉基督教,但他们在低地种植水稻的经验不到5年,水稻种植面积不到5英亩,约有61%的接受访问者每户有5至10人,样本中参与项目的人数少于没有参加项目的人数。从Probit模型的结果来看,确定模型拟合度的卡方值在1%的统计水平上显著,“参与稻田项目的持续性”(t=5.02)和“村庄稻田项目的起始时间”(t=-1.53)两变量分别在5%和10%的统计水平上显著。从文中也可以看出,在引进稻田项目的同时,也引进了适当的田间管理和水资源管理。为了确保农民参与稻田项目的可持续发展,也有必要对论文中基于项目3阶段分析所揭示的重要的社会变量给予政策上的重视。 | 中岛邦公(Kunitada Nakashima) 艾杜瓦·奥拉德利(Oladele, O. Idowu) 布里·莫罗(Moro M. Buri) 若月利之(Toshiyuki Wakatsuki) | 2007 | 中国农业经济评论2007，5，4： | 1 |
| 4 | Comparative susceptibility of chickens,turkeys and ducks to infectious bursal disease virus using immunohistochemistry显示文摘 | Oladele O A Adene D F Obi T U | 2009 | Vet Res Commun2009，33，： | 1 |
| 5 | Sound management of brominated flame retarded (BFR) plastics from electronic wastes: state of the art and options in Nigeria显示文摘 | Innocent C N Oladele O | 2008 | Resources Conservation and Recycling2008，52，12： | 1 |
| 6 | Effect of the degree of plastic deformation on the electrical resistance and thermal conductivity of A1- Mg-Si alloy 显示文摘 | OMOTOYINBO J A OLADELE I O SHOKOYA W | 2014 | Leonardo Electronic Journal of Practices & Technologies2014，24，： | 1 |
| 7 | An in vivo evaluation of induetion of abnormal sperm morphology in mice by landfill leacheats显示文摘 | Adekunle A Bakare Adekunle A Mosuro Oladele Osibanjob | | 0，，： | 1 |
| 8 | Vitamin D as adjunctive therapy in refractory pulmonary tuberculosis: a case report显示文摘 | Yamshchikov AV Oladele A Leonard MK Jr | 2009 | South Med J2009，102，6： | 1 |
| 9 | Nisin in the presernation of NonO显示文摘 | N A Olasnpo S M Akinsanya O F Oladele | 1996 | Joural of Food Processing and Preservation1996，20，： | 1 |
| 10 | A method for engi- neering design change analysis using system modelling and knowledge manageme-nt techniques 显示文摘 | Fei G Y Gao J Oladele O | 2011 | Interna- tional Journal of Computer Integrated Manufacturing2011，，6： | 1 |
| 11 | Chemical composition and Functional properties of Flour produced from two varieties of tiger nut显示文摘 | Oladele A K and Aina J O | 2007 | African Journal of biotechnology2007，，6： | 1 |
| 12 | Residues of organochlorine pesticides in fruits, vegetables and tubers from nigerian markets显示文摘 | ADENIYI A OLADELE O | 1999 | Sci Total Environ1999，231，23： | 1 |
| 13 | OPPORTUNITIES AND APPROACHES FOR MANIPULATING SOIL-PLANT MICROBIOMES FOR EFFECTIVE CROP NITROGEN USE IN AGROECOSYSTEMS显示文摘Soil microbiomes drive the biogeochemical cycling of nitrogen and regulate soil N supply and loss,thus,pivotal nitrogen use efficiency(NUE).Meanwhile,there is an increasing awareness that plant associated microbiomes and soil food web interactions is vital for modulating crop productivity and N uptake.The rapid advances in modern omics-based techniques and biotechnologies make it possible to manipulate soil-plant microbiomes for improving NUE and reducing N environmental impacts.This paper summarizes current progress in research on regulating soil microbial N cycle processes for NUE improvement,plant-microbe interactions benefiting plant N uptake,and the importance of soil microbiomes in promoting soil health and crop productivity.We also proposes a potential holistic(rhizosphere-root-phyllosphere)microbe-based approach to improve NUE and reduce dependence on mineral N fertilizer in agroecosystems,toward nature-based solution for nutrient management in intensive cropping systems. | Jingjing PENG Olatunde OLADELE Xiaotong SONG Xiaotang JU Zhongjun JIA Hangwei HU Xuejun LIU Shuikuan BEI Anhui GE Limei ZHANG Zhenling CUI | 2022 | Frontiers of Agricultural Science and Engineering2022，9，3： | 1 |
| 14 | Serum lipid profile and correlates in newly presenting Nigerians with arterial hypertension显示文摘 | Adamu UG Okuku GA Oladele CO | 2013 | Vasc Health Risk Manag2013，9，： | 1 |
| 15 | Racial/Ethnic and Social Class Differences in Preventive Care Practices among Persons with Diabetes显示文摘 | Oladele C R Barnett E | 2006 | BMC Public Heahh2006，6，10： | 1 |
| 16 | Larval habitats of mosquito fauna in Osogbo metropolis,Southwestern Nigeria显示文摘Objective:To determine the larval habitats of mosquito fauna and possible impact of land use/land cover changes on the epidemiology of mosquito-bome diseases in Osogbo metropolis,Southwestern,Nigeria.Methods:All accessible larval habitats were surveyed between May and September,2011in Osogbo metropolis while Land Use/Land cover of the city was analyzed using 2 Lansat Multispectral Scanner satellite imagery of SPOT 1986 and T.ANDSAT TM 2009.Results:A total of six species namely,Aedes aegypti,Aedes albopictus,Aedes vittatus,Anopheles gambiae complex,Culex quinquefascialus and Erelmapodite chrysogaster were encountered during the study.The occurrence and contribution of disused tyres was significantly higher(P<0.05)than the other habitats encountered,while there were no significant differences in the contribution of gutters/run-offs.septic tanks/drums,ground pools/open drains and discarded containers lo the breeding of mosquitoes(P>0.05).The accessible land use/land covered of the study area between 1986 and 2009 showed that the wet land coverage and settlement area increased from 0.19 lo 9.09 hectare and 1.00 to 2.01 hectare respectively while the forest area decreased from 60.18 to 50.14 hectare.Conclusion:The contribution of the habitats coupled with the increasing rale of flooded environment which could provide ample breeding sites for mosquitoes call for sustained environmental sanitation and management in Osogbo metropolis. | Monsuru Adebayo Adeleke Wasiu Olalekan Adebimpe Abdulwasiu Oladele Hassan Sunday Olukayode Oladejo IsmailOlaoye Ganiyu Olatunji Olatunde Taiwo Adewole | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，9： | 1 |
| 17 | Nisin in the presernation of non 显示文摘 | Olasnpo N A Akinsanya S M Oladele O F | 1996 | O Joural of Food Processing and Preservation1996，20，： | 1 |
| 18 | Vitamin D as adjunctive therapy in refractory pulmonary tuberculosis:a case report显示文摘 | Yamshchikov AV Oladele A Leonard MK Jr | 2009 | South Med J2009，102，6： | 1 |
| 19 | Sound Management of Brominated Flame Retarded (BFR) Plastics from Electronic Wastes: State of the Art and Options in Nigeria 显示文摘 | Innocent C N Oladele O | 2008 | Resources Conservation and Recycling2008，52，12： | 1 |
| 20 | Chemical composition and ftinctional proper- ties of flour produced from two varieties of tigemut ( Cyperus esculen- tus)显示文摘 | Oladele A K Aina J O | 2007 | African Journal of Biotechnology2007，6，21： | 1 |
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