Publications

Since 1998 when he first published his research work in the Journal "The Land", he has continued to conduct and publish research outputs in reputable journals both within and outside Nigeria. As at now Job has published more than 92 scientific papers with the following citation metrics.

Data source	Google Scholar Profile(FUT)	Google Scholar	Microsoft Academic	Research gate
Publication years	1998-2016	1992-2016	2004-2016	2006-2017
Citation years	19	25	13	11
Papers	61	64	26	51
Citations	140	160	33	101
Citations/year	7.37	6.4	2.54	9.18
Citations/paper	2.3	2.5	1.27	1.98
Citations/author	68.76	81.93	17.34	43.09
Papers/author	28.07	29.42	12.15	20.30
Authors/paper (mean/median/mode)	2.85/3.0/3	2.81/3.0/3	2.69/2.5/2	3.02/3.0/3
Hirsch h-index (a, m)	7 (2.86, 0.37)	7 (3.27, 0.28)	3 (3.67, 0.23)	5 (3.96, 0.50)
Egghe g-index (g/h)	9 (1.29)	9 (1.29)	4 (1.33)	7 (1.40)
PoP hI,norm	4	4	2	3
PoP hI,annual	0.21	0.16	0.15	0.30

You can consult any of the publications as listed below:

Larbi, I., J. N. Nmadu, A. S. Gana and A. Okhimamhe (2019). Analysis of food crops farmers’ choice of climate change adaptation strategies in Kwara State, Nigeria, Kasetsart Journal of Social Sciences 40(2): 434–439. Read more

Nmadu, J.N., Wilhelm, J, Oha, E, and Sallawu, H. (2016). Adaptive Capacity of Rural Women: Potential for Participating in Poverty Alleviation Programmes in Niger State, Nigeria, Nigerian Agricultural Policy Research Journal (NAPReJ) Read more.

I. Larbi, A. S. Gana , J. N. Nmadu , A. A. Okhimamhe and G. H. M. Bello. (2016). Evaluation of Root and Tuber Crops Yield under the Changing Climatic Conditions in Kwara State, Nigeria, Asian Journal of Economics, Business and Accounting Read more.

Sallawu H., Tanko L., Nmadu J.N. and Ndanitsa A.M. (2016). Determinants of Income Diversification among Farm Households in Niger State, Nigeria. Russian Journal of Agricultural and Socio-economic Sciences Read more.

Sallawu, H., L. Tanko, J. N. Nmadu and A. A. A. Coker (2016). Poverty Status of Farm Households in Selected Local Government Areas of Niger State, Nigeria. Asian Journal of Agricultural Extension, Economics & Sociology Read more.

Jirgi, A. J., H. Jordaan, B. Grové, M. F. Viljoen and J. N. Nmadu, (2016). Risk  Attitude  of  Monocrop  and  Intercrop  Farmers  in  Kebbi  State, Nigeria. Journal of  Economics  and  Sustainable  Development Read more.

Nmadu, J N, A.T. Jacob and K.M. Baba, (2015). Growth rate and doubling time of yam and cassava production in Nigeria. Russian Journal of Agricultural and Socio-Economics 12(48):43-48; Read more.

Nmadu, J. N., H. Sallawu and B. V. Omojeso, (2015). Socio-economic factors affecting adoption of innovations by cocoa farmers in Ondo State, Nigeria. European Journal of Business, Economics and Accountancy, Read more: .

Nmadu, J. N., E. S. Yisa, J. O. Simpa and H. Sallawu, (2015). Poverty Reduction in Nigeria: Lessons from Small Scale Farmers of Niger and Kogi States. British Journal of Economics, Management & Trade 5(1):124-134. Read more.

Amos, T. T and J. N. Nmadu (2004).  Effect of land market on land ownership in peri-urban Nigeria.   Eastern Africa Journal of Rural Development 20(1) 4:136-141. Read more

Amos, T. T, D. O. Chikwendu and J. N. Nmadu (2004). Productivity, technical efficiency and cropping patterns in the savanna zone of Nigeria.  Journal of Food, Agriculture and Environment 2(2): 173-176. Read more

Nmadu, J N and T.T Amos (2009).. Effect of fertilizer consumption in Nigeria and rate of naira exchange to the US dollar on sorghum acreage between 1960 and 2006.  Journal of Human Ecology 26(1):41-45. Read more

Nmadu, J. N. (2009). Effect of Changes in Some Macro-Economic Policies on Sorghum Economy in Nigeria between 1961 and 2005.  Journal of Social Science 20(3):163-168. Read more

Nmadu, J.N., E.S. Yisa and U. S. Mohammed (2009). Spline Functions: Assessing their Forecasting Consistency with Changes in the Type of Model and Choice of Joint Points.  Trends in Agricultural Economics 2(1):17-27. Read more

Nmadu, J.N. (2010).  Revision of the Nerlovian Partial Adjustment Framework and its Application to Sorghum Production in Nigeria. African Journal of Agricultural Research 5(5):325-331. Read more

Ajah, J and J.N. Nmadu. 2012. Socio-economic Factors Influencing the Output of Small-Scale Maize Farmers in Abuja, Nigeria. Kasetsart J. (Soc. Sci) 33(2): 333- 341. Read more

Ajah, J and J.N. Nmadu 2012. Small-Scale Maize Farmers’ Access to Farm Inputs in Abuja, Nigeria. Kasetsart J. (Soc. Sci) 33(3):499 -505. Read more

Nmadu, J.N, G.P. Eze and A.J. Jirgi, 2012. Determinants of Risk Status of Small Scale Farmers in Niger State, Nigeria. British Journal of Economics, Management & Trade. 2(2): 92-108, 2012. Read more

Nmadu, J.N., R.C. Iwuajoku and E.Z. Jiya. 2012. Commercialisation level of poultry production in the local government areas in minna metropolis, Nigeria. Asian Journal of Agricultural Extension, Economics and Sociology. 1(1): 1-15. Read more

Nmadu, J.N., M.A. Ojo and F.D. Ibrahim, 2013. Prospects of sugar production and imports in Nigeria: Meeting the sugar demand of Nigeria by year 2020. Russian Journal of Agricultural and Socio-Economics 2(14):26-33. Read more

M. A. Ojo, J.N. Nmadu, L.Tanko and R.S. Olaleye, 2013. Farm size and scale efficiency of small holder tuber crop farmers in North Central Nigeria. International Journal of Physical and Social Sciences 3(4):260-270. Read more

Nmadu, J.N., F. A. Aiyelitsoya, and H. Sallawu. 2013. Use of ICT in securing marketing information among small scale farmers in Niger state, Nigeria. International Journal of Trade, Economics and Finance 4(2):66-72. Read more

M. A. Ojo, J.N. Nmadu, L.Tanko and R.S. Olaleye, 2013. Multinomial Logit Analysis of Factors Affecting the Choice of Enterprise among Small Holder Yam and Cassava Farmers in Niger State, Nigeria. Journal of Agricultural Sciences 4(1): 7-12 (2013). Read more

J. N. Nmadu and P. L Marcus. 2013. Efficiency of ginger production in selected local government areas of Kaduna State, Nigeria. International Journal of Food and Agricultural Economics (IJFAEC) 1(2): 39-52. Read more

Nmadu J. N., W. O. Inalegwu and H. Sallawu, 2014. Acquisition and management of land resources for agricultural production in Benue State, Nigeria. Asian Journal of Agricultural Extension, Economics & Sociology  Read more

Nmadu, J.N., I.O. Ogidan and R.A. Omolehin, 2014. Profitability and Resource use efficiency of Poultry eggs production in Abuja, Nigeria. Kasetsart Journal (Social Sciences) Read more

J. N. Nmadu, B. N. Abdulrahman and K. M. Baba (2014). Micro-credit requirement, acquisition and repayment by vegetable farmers in Niger State, Nigeria. International Journal of Trends in Economics, Management and Technology. II(IV):34-39. Read more

J. N. Nmadu and S. A. Garba (2014). Profit Efficiency of Smallholder Spinach Producers under Irrigated Agriculture in Niger State, Nigeria. International Journal of Trends in Economics, Management and Technology. II(IV):14-19. Read more

Ibrahim, F.D.; Nmadu, J.N.; Baba, K.M.; Gana, A.S. Danbaba, N. and Ibrahim, P.A. (2013). Demand Analysis for Consumer Preference of Cowpea Attributes In Niger State, Nigeria: A Hedonic Approach. IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS). 5(5):67-72. Read more

Umar, I.S., R.S. Olaleye, B.O. Adeniji and J.N. Nmadu, 2014. Assessment of Farmer’s Willingness to Pay for Demand-Driven Extension Services in Niger State, Nigeria. International Journal of Physical and Social Sciences 4(4):374-384. Read more

A.J. Jirgi, B. Grové, H. Jordaan, M.F. Viljoen, J.N. Nmadu, 2014. Estimating technical efficiency and the metatechnology ratio using the metafrontier approach for cropping systems in Kebbi State, Nigeria. International Journal of Development and Sustainability 3(7): 1538-1548. Read more

J. N. Nmadu, E. S. Yisa, J. O. Simpa and H. Sallawu, 2015. Poverty Reduction in Nigeria: Lessons from Small Scale Farmers of Niger and Kogi States. British Journal of Economics, Management & Trade 5(1):124-134. Read more

A. J. Jirgi, H. Jordaan, B. Grové, M. F. Viljoen and J. N. Nmadu, (2015). Technical Efficiency of Millet/Cowpea Farmers in Kebbi State Nigeria: A Double Bootstrapping Approach. British Journal of Economics, Management & Trade 5(3): 366-373. Read more

J. N. Nmadu and J. C. Nwawulu, 2015. Impact of HIV/AIDS prevalence on rural farm households in Niger State, Nigeria. European Journal of Business, Economics and Accountancy, 3(1): 62-72. Read more

J. N. Nmadu, H. Sallawu and B. V. Omojeso, 2015. Socio-economic factors affecting adoption of innovations by cocoa farmers in Ondo State, Nigeria. European Journal of Business, Economics and Accountancy, 3(2): 58-66. Read more

A. J. Jirgi, B. Grové, H. Jordaan, M. F. Viljoen, J. N. Nmadu, 2015. Sources of Risk and Management Strategies as Perceived by Monocrop and Intercrop Farmers in Kebbi State, Nigeria. Asian Journal of Agricultural Extension, Economics & Sociology 6(1): 34-44. Read more

Nmadu, J.N. and D.O.A. Phillip (2001). Forecasting the yield of sorghum in Nigeria using alternative forecasting models. Nigerian Agricultural Journal 32:52-64. Read more

J. Nmadu and E. Adeyemi 2012. Knowledge Levels And Assumed Impact Of Alternative Uses Of Orphan Crops On Income And Poverty Levels In Kwara State. Read more

Ojo M.A., J.N. Nmadu, L. Tanko and R.S. Olaleye, 2013. Resource Productivity Analysis of Small Scale Root and Tuber Crop Farmers in Niger State, Nigeria. Read more

Job N. Nmadu and James O. Simpa, 2014. Rethinking the technical efficiency of small scale yam farmers in Nigeria using conventional and non-conventional inefficiency parameters. Read more

J.N. Nmadu, E.S. Yisa, J.O. Simpa and H. Sallawu, 2015. Poverty reduction in Nigeria: Lessons from Small Scale Farmers in Niger and Kogi States. Read more

Nmadu, J. N. (1998).  Factors affecting variation in farm size among small scale farmers in the Niger Inland Area of Niger State, Nigeria.  The Land 2.3:173-180.

Nmadu, J N, A.T. Jacob and K.M. Baba, 2013. Growth rate and doubling time of yam and cassava production in Nigeria. Russian Journal of Agricultural and Socio-Economics 8(20)

Nmadu, J. N. (1999).  Performance of Community Banking System in agricultural financing in Nigeria: The Nigerian Journal of Agricultural Extension 12(1):17-25.

Nmadu, J N. (2000). Modelling Sorghum Supply and Pricing: Choosing an Appropriate Modelling Mechanism.  Nigerian Journal of Rural Economy and Society 2(1):1-6.

Nmadu, J N. and T.T. Amos (2002). Comparison of grafted ex-ante forecast estimates and computed values of sorghum yield; acreage and output in Nigeria.  Journal of Sustainable Tropical Agricultural Research 5:40-44.

Nmadu, J.N., T.T. Amos, A.O. Alade and M.O. Fesojaiye (2002).  Computer program for evaluating farming enterprises’ performance. The Nigerian Journal of Research and Production. 1(3):97-107.

Nmadu, J. N. (2003). An Empirical Analysis of Sorghum Supply and Pricing Mechanisms as a Basis for Enhancing its Bio-Resources.  Journal of Sustainable Tropical Agricultural Research 9:49-54.

Nmadu J.N., J.O. Olukosi, R.S. Musa and J. Agada, (2003).  Acreage Response to Price: A Case of Sorghum Production in Nigeria under the Modified Nerlovian Adaptive Expectation Framework. Journal of Agriculture, Biotechnology and Environment 3(1):25-34.

Nmadu, J. N., J. O. Olukosi, T.T. Amos and R.S. Musa (2004). Forecasting Sorghum Acreage in Nigeria using Grafted Response Analysis.  Journal of Arid Agriculture 14:15-21.

Ajah, J.1 and J. N. Nmadu, 2013. Farmers’ perception of problems influencing maize storage in Abuja, Nigeria. Journal of Applied Agricultural Research, 5(2): 89-94

Onu, J.O., J.N. Nmadu and L. Tanko, 2013. Determinants of awareness of credit procurement procedures and farmers income in minna metropolis, Nigeria. Nigerian Journal of Agricultural Economics. 4(1):1-11.

Ayinde, O. E; Olatunji, G. B; Adewumi, M. O; Nmadu, J. N. and Egbugo K. 2014. Review of marketing board policy: comparative analysis of cocoa pricing eras in Nigeria. Nigerian Journal of Agricultural Economics. 4(1):68-79.

Nmadu, J. N. (2000).  Computer program for solving linear programming in farm planning analysis.  In: Polymath Journal 1(1):33-40.

Nmadu, J. N., T.T. Amos, R.S. Musa and J. Agada, (2001).  An analysis of the types and sources of information used by farm managers in Bida area of Niger State, Nigeria. In: Polymath Journal 2(1):37-42.

Onuoha, S.A., O. Akoma and J N Nmadu, (2003).  Guides to writing acceptable articles for publication in learned journals.  Polymath Journal 4(1):4-5.

Nmadu, J.N., A.O. Alade and M.O. Fesojaiye, (2003). Indigenous computer programs for statistical analysis: t-test and chi-square.  Landzun Journal of Engineering and Appropriate Technology 1(1):95-97.

Nmadu, J.N., M O Fesojaiye and A.O. Alade, (2003). Indigenous computer programs for statistical analysis: analysis of variance.  Landzun Journal of Engineering and Appropriate Technology 1(1):90-94.

Nmadu J.N. (1996). Gross margin analysis of using neem seed extract to control cowpea pest at Bida-Nigeria.

Nmadu J.N.; J.O. Olukosi and D.O.A Philip, (2001).  Structural characteristics of income among small scale farmers in Doko and Jima Districts of Niger state, Nigeria.

Nmadu J.N.; R.S. Musa; T.T. Amos and J. Agada, (2001).  An analysis of the factors affecting resource use and variation among small scale farmers in the Niger Inland Valley area of Niger state, Nigeria.

Nmadu, J N. (2005).  Determination of the long run equilibrium between sorghum and millet supply in Nigeria using error correction model.

Nmadu, J. N. and T. T. Amos (2005). Effect of farm wage rate and sorghum farm gate price on sorghum hectarage in Nigeria.

Nmadu, J. N. (2006).  Effect of changes in some macro-economic policies on sorghum economy in Nigeria between 1961 and 2005.

Nmadu, J.N. and J.O. Ibiejemite (2007).  Economic analysis of fertilizer use on yam production in Kabba Bunu Local Government Area of Kogi State, Nigeria.

Nmadu, J.N., A. Haruna and O. Jiya, (2008).  Socio-economic structure of farmers displaced by the establishment of large-scale farming in Edu Local Government of Kwara State, Nigeria.

Nmadu, J. N., E.P.O Egwa And A. Ogaji (2008).   Factors affecting loan acquisition among small scale farmers in Otukpo Local Government Area of Benue State, Nigeria.

Nmadu, J.N., E.S. Yisa and U. S. Mohammed, (2008).  Spline functions: assessing their forecasting consistency with changes in the type of model and choice of joint points.

Nmadu, J.N. and J. Peter 2010. Small scale farmers’ willingness to take agricultural insurance in Paikoro Local Government Area of Niger State

 Ibrahim, F.D., U.S. Mohammed, J.N. Nmadu, I.I. Yakubu and P.A. Ibrahim 2010. Forecasting and growth trends of sugar cane production: meeting the goals of commercial agriculture in Nigeria

Tsado, J. H, R.S. Olaleye,  J.N.Nmadu, O.J. Ajayi and I.S. Umar 2010. Sustaining Extension activities in yam production: An assessment of the productivity constraints of farmers in Yagba Local Government Area Of Kogi State State

Nmadu, J.N., J.O. Onu and L. Tanko, 2011. Credit acquisition and utilization by farmers in Minna metropolis, Niger State, Nigeria

Nmadu, J.N., C. I. Nwafor and J.A. Ndatsu, 2011. Input-output analysis of palm fruit processing by small scale processors in Aguata area, Anambra State, Nigeria

Onu, J.O., J.N. Nmadu and L. Tanko, 2011. Determinants of awareness of credit procurement procedures and Farmers income in Minna Metropolis, Nigeria.

Nmadu, J.N., A. I. Odine, S. Jibrin and H. Sallawu 2012. Farm Size And Nigeria Agriculture: A Meta-Analysis.

Sallawu, H. and J. N. Nmadu 2012. Institutional Environment and Access to Microfinance by Self-Employed Women in Rural Areas of Chanchaga Local Government Area, Niger State.

Ayinde, O. E; Olatunji, G. B; Adewumi, M. O; Nmadu, J. N. and Egbugo K. 2012. Review of Marketing Board policy: comparative analysis cocoa pricing eras in Nigeria.

Job N. Nmadu, Fatima P. Shehu and Halima Sallawu, 2014. Risk Sources and risk management among yam Farmers in Shiroro Local Government Area of Niger State, Nigeria.

Job N. Nmadu, R. A. Gajere, A. I. Odine and H. Sallawu, 2014. Dynamics of poverty and food security in Minna Niger State Nigeria. Climate Change, Agriculture and Food Security.

Nmadu J,N, (1998).  Small scale Zobo production as a means of enhancing family income. 

Nmadu J.N. and V. Okolobah, (1998). Computer-aided analysis of agricultural research data. 

Nmadu, J.N. (1999)  Computer application in agricultural planning and asset control.

 Nmadu, J.N., M.A. Ojo and F.D. 2012. Ibrahim. Prospects of Sugar Production and Imports in Nigeria: Meeting the Sugar demand of Nigeria by Year 2020.

Nmadu J. N., W. O. Inalegwu and H. Sallawu, 2013. Acquisition and management of land resources for agricultural production in Benue State, Nigeria.
J. N. Nmadu and Adebola Akinola, 2015. Farm Labour Supply and Utilization for Food Crop Production in Nigeria.

Nmadu, J.N.  (1992). Production and disposal of selected crops in Lavun Local Government of Niger State.

Nmadu, J.N., (1995).  The socio-economic characteristics of farmers in pati, Lavun Local Government of Niger State. 

Nmadu, J.N., (1995).  The computerised farmer. 

Nmadu, J.N. (1997).  Software programming for project analysis.

Nmadu, J.N., (1997).  Computer application in agricultural economics : networth statement.

Nmadu J.N., J.O. Olukosi, R.S. Musa and J. Agada, (2001).  Acreage response to price: a case of sorghum production in Nigeria under the modified Nerlovian adaptive expectation framework.

Nmadu, J. N., J. O. Olukosi, T.T. Amos and R.S. Musa, (2001).  Forecasting sorghum acreage in Nigeria using grafted response analysis.

Nmadu, J. N, (2001).  Revision of the Nerlovian partial adjustment framework and its application to sorghum production in Nigeria.

Nmadu, J.N. and T.T. Amos, (2004).  Dynamic price movement among major food grains in selected markets of Niger state, Nigeria.

Nmadu, J. N. and N.K. Mohammed, (1998). Economic analysis of using Neem seed extract to control cowpea pest at Bida, Nigeria.

Nmadu J.N., T.T. Amos and J. Agada, (1999).  Econometric estimation of annual world Sorghum production by country. 

Nmadu J.N. and G.L. Chindo, (2009).  Willingness to adopt improved technology among maize farmers in Shiroro Local Government Area of Niger State, Nigeria.