aliyu ammani | Ahmadu Bello University, Zaria, Nigeria. (original) (raw)

Papers by aliyu ammani

Journal of Agripreneurship and Sustainable Development, Dec 1, 2021

Journal of Agripreneurship and Sustainable Development

The study set out to test the Malthusian doctrine which stated that “population, when unchecked, ... more The study set out to test the Malthusian doctrine which stated that “population, when unchecked, increased in a geometrical ratio, and subsistence for man in an arithmetical ratio”, using Nigeria as a case in hand. Data on human population and food production in Nigeria (1961- 2018) were collected from FAOSTAT and used. Geometric Progression and Arithmetic Progression were applied on the collected data to generate second sets of data that fitted geometric and arithmetic progression, respectively. Descriptive statistics and the student t-test technique for comparison of means of independent samples were used to achieve the objectives of this study. Results of the Student’s t-tests (calculated t-value of 0.693 and computed p-value of 0.490 for food production; calculated t-value of 4.700 and computed p-value of 0.000 for population) lead to the acceptance of the null hypothesis for food production and rejection of the null hypothesis for population growth. The mean difference of 2889...

Journal of Agricultural Extension and Rural Development, Jan 31, 2011

... J. Agric. Eng. Technol., 10: 7-16. Abubakar SZ, Abubakar SS, Murtala GB (1998). Irrigation Ex... more ... J. Agric. Eng. Technol., 10: 7-16. Abubakar SZ, Abubakar SS, Murtala GB (1998). Irrigation Extension and Training in Nigeria: NAERLS-Two-Decades of Support. Presentation at the 1st National Irrigation Week held 24th-27th March at the Kano State House of Assembly, Kano. ...

Journal of Agricultural Extension and Rural Development, Jan 31, 2011

Academic Journals, Nov 30, 2010

The paper studies the effects of the liberalization of the Nigerian fertilizer sector, vis-à-vis ... more The paper studies the effects of the liberalization of the Nigerian fertilizer sector, vis-à-vis the sustenance of the present dual fertilizer distribution arrangement, on maize production in Nigeria. Time series data was collected for the period 1990-2006. A multiple regression model was specified with aggregate fertilizer use, maize hectarage and a dummy variable designed to capture the effects of the changes induced by fertilizer liberalization measure, as explanatory variables. Aggregate maize output was the dependent variable. Results of this study indicate that a significant decrease in aggregate maize production followed the Federal Government's liberalization of the fertilizer sector in 1997. The statistically significant decrease in Maize production is attributable to the statistically significant decrease in fertilizer use during the fertilizer liberalization period. The paper concluded that the sustenance of the present dual fertilizer distribution arrangement has a negative effect on maize production in Nigeria.

International Journal of Food and Agricultural Economics, 2013

Rice is an economically important food security crop, cultivated in almost all of Nigeria’s 36 St... more Rice is an economically important food security crop, cultivated in almost all of Nigeria’s 36 States. Nigeria spends more than 356 billion naira (2.24 billion US dollars) annually on rice import. This paper set out to analyze the trend in rice production, productivity, import, value of import and consumption that follows the adoption of the Structural Adjustment Programme (SAP) in Nigeria, with emphasis on the effects of exchange rate (ER) deregulation on domestic rice production and rice imports over the period 1986-2010. Relevant time series data were collected and used. A semi-log growth rate model and 2simple linear regression models were developed and estimated. Highlights of the findings include (i) accelerated rate of growth in rice production (Instantaneous Growth Rate (IGR) 2.2%; Cumulative Growth Rate (CGR) 2.2%); rice hectarage (IGR 3.7%; CGR 3.8%); rice importation (IGR 8.5%; CGR8.9%); expenditure on rice importation (IGR 10.6%; CGR 11.2%) and rice consumption (IGR 3.4%...

Advance in Agriculture and Biology, 2015

Agricultural extension has many definitions, philosophies, typologies and approaches. Views on ex... more Agricultural extension has many definitions, philosophies, typologies and approaches. Views on extension have changed in emphasis from agricultural production to helping farmers organize themselves; linking farmers to markets; reducing vulnerability and enhancing the voice of the rural poor; developing micro-enterprises; poverty reduction and environmental conservation; and strengthening and supporting farmer organizations. What the entire foregoing views have in common is that the theory and practice of agricultural extension revolve round the farmer. Developing value chains for strategic agricultural commodities is now essential to enhance agricultural transformation and global competitiveness. In fact the Value Chain Approach is the central mechanism of the Agricultural Transformation Agenda (ATA) aimed at restoring the lost glory of Nigeria's agriculture. The agricultural value chain approach brings actors other than the farmer into focus in agricultural transformation. What are the implications of adopting the agricultural value chain approach on the principles and practice of agricultural extension in Nigeria? An attempt towards finding answer to this question was attempted in this paper based on survey of the literature on value chain actors' information needs published in several rice value chain studies in Nigeria. It was concluded that the adoption of the agricultural value chain approach has implications on the concept and practice of agricultural extension which include: (a) that the concept of agricultural extension must integrate the various actors of the agricultural value chain other than the farmer, and that (b) the extension delivery system need to be repositioned to advice the actors of the agricultural value chain, other than the farmers. A multi-actor extension system capable of addressing the constraints of the various actors along the agricultural value chain was recommended.

Education has always been a prerequisite for all forms of effective development. One of the main ... more Education has always been a prerequisite for all forms of effective development. One of the main objectives of the Nigerian National Policy on Education is to make secondary school leavers “immediately employable”. This objective was based on two assumptions: (i) that the major reason why most secondary school leavers are unemployed is that they have no vocational skills (ii) that the senior secondary school can teach the necessary skills, thereby ensuring mass employment of school leavers. Thus, the insertion of certain vocational subjects, such as agricultural science, in secondary schools programmes. This study set out to answer the question: can Nigerian secondary schools, as they exist, teach the necessary vocational skills required to make school leavers “immediately employable”? The answer is attempted based on the circumstances of agricultural science as a vocational subject taught in senior secondary schools in Kaduna Metropolis. All ninety-one agricultural science teachers...

Nigerian agriculture was the mainstay of the Nigerian economy since independence in 1960 until th... more Nigerian agriculture was the mainstay of the Nigerian economy since independence in 1960 until the discovery of crude oil in commercial quantities and the subsequent oil boom period that started in 1973. Previous Nigerian governments have introduced several policies to help return back Nigeria‟s agriculture past glory, all to no avail. However, the present government has launched a highly ambitious programme, the agricultural transformation agenda (ATA), aimed at restoring the lost glory of Nigeria‟s agriculture by the year 2015. This paper set out to analyze the trend in output growth rates for each of the seven identified ATA crops. Specifically, the study seek to (i) estimate the instantaneous and compound output growth rate as well as (ii) investigate the existence of acceleration, stagnation or deceleration in output growth for each of the seven ATA crops over the period (1970-2007). Time series data on aggregate output of the seven ATA crops in Nigeria for the period 1970-2007...

At independence in the 1960s, great hopes were raised on the possibility of African countries bec... more At independence in the 1960s, great hopes were raised on the possibility of African countries becoming “developed” within the shortest possible time. However, almost 50 years later, it appears economic development has completely eluded African countries. This paper argues that Africa’s quest for development is thwarted principally by the negative influence of politics on economics. It attempt at providing empirical evidence of how politics influence economic outcomes in Africa, from the circumstances of the liberalization of the Nigerian fertilizer industry. The lack of sustained political will and commitment to push through the then Federal Military Government’s adoption of a complete fertilizer liberalization policy in 1997 by the politicians since 1999 leads to the emergence and sustenance of the present dual fertilizer distribution arrangement: one regulated and the other completely deregulated. This paper evaluates the consequence of this political action on the performance of ...

It was observed that “no country has been able to sustain a rapid transition out of poverty witho... more It was observed that “no country has been able to sustain a rapid transition out of poverty without raising productivity in its agricultural sector”. Predicated on the argument that an effective agricultural extension services delivery system is a prerequisite to improving farmers’ productivity this study set out to investigates the effectiveness of the public agricultural extension services delivery system in improving agricultural productivity in Nigeria taking the maize sector as case in hand. Aggregate data on maize output and hectarage for the period 1990-2011 were utilized in estimating a simple regression model. Findings indicate a slight accelerated growth in maize production; (ii) significant growth deceleration in maize hectarage; and (iii) that at prevailing average maize hectarage, by increasing the adoption of improved management practices to 25%, 50%, 75% and 100%, maize output in Nigeria will be raised by 0.6%, 47%, 93% and 139% respectively. It is concluded that the ...

International Journal of Agriculture and Forestry, 2012

Nigerian agriculture by nature is essentially traditional and subsistence. Limited access to cred... more Nigerian agriculture by nature is essentially traditional and subsistence. Limited access to credit facilities has been implicated as hinderance to the growth and productivity of the agricultural sector. Thus, the need arises for the provision of credit to the majority of Nigerian farmers. To increase farmers' access to credit from formal sources, the Federal Government of Nigeria established the Agricultural Credit Guarantee Scheme Fund (ACGSF) in 1977, with the purpose of increasing the level of bank credit to the agricultural sector through the provision of guarantee in respect of loans granted by any bank for agricultural purposes. This paper set out to investigate the relationship between agricultural production and formal credit supply in Nigeria. The methodology employed in the study involved the development and estimation of three simple regression models relating agricultural output with formal credit while holding other explanatory variables constant. Findings of the paper indicates that formal credit is positively and significantly related to the productivity of the crop, livestock and fishing sectors of Nigerian agriculture. Based on the findings it is recommended that government should continue to encourage the expansion of formal credit sources to reach as much farmers as possible.

Trends in Agricultural Economics, 2012

International Journal of Statistics and Applications, 2012

Over the years several authors have attributed the decline in Nigerian agricultural production to... more Over the years several authors have attributed the decline in Nigerian agricultural production to the neglect of the agricultural sector that resulted from the discovery of crude oil, what is known as the oilboom factor. This paper set out to find answer to the question: was agriculture really neglected as a result of the oilboom? The study took a historical perspective to trace the path of capital expenditure allocations to the agricultural sector in Nigeria. Secondary data on planned capital expenditure allocation to the agriculture sector before and during the oilboom period; and the budget estimates of capital expenditure allocations to the Agriculture, Water Resources, Health, Education and Defence sectors in Nigeria during the oil boom period 1977-1983 were sourced and used. Graphic descriptive statistics and the one-way analysis of variance technique were used to achieve the objectives of the study. The Tukey's Multiple Comparison method w as employed to determine which mean(s) differ, in both cases, in the one-way analysis of variance tests conducted. The empirical findings of the study indicate significant increase in the quantity of capital expenditure allocation to the agriculture sector during the oilboom period; and that more capital expenditure was allocated to the agriculture sector than was allocated to either of Health, Education or Defence sectors in Nigeria during the oilboom period. Thus, it concluded that the decline in agricultural production in Nigeria was, statistically, not attributable to the neglect of the agricultural sector resulting from oil boom. The reason could be as a manifestation of Dutch Disease, Natural Resource Curse, Rent Seeking phenomenom, or something else.

Journal of Agricultural Extension, 2011

The paper attempts an analysis of the problems (their causes and effects) militating against the ... more The paper attempts an analysis of the problems (their causes and effects) militating against the sustainability, and by implication, the effective performance of the ADP system in Nigeria. A problem tree was constructed based on problems identified by recent reports of the Agricultural Performance Survey and the National Agricultural Extension Review and Planning Meetings, activities conducted by NAERLS in collaboration with other NARIs and Federal Agencies. The focal problem is inadequate funding. The developed problem tree was then transposed, thus transforming the root causes and consequences identified into root solutions. From the root solutions, the following available practical solutions were advanced: improving funding for the ADPs through deduction of state and federal governments counterpart funds for the ADPs from source i.e. the federation account and formation of an Agricultural Development Tax Fund (ADTF) fashioned not in line with the Education Tax Fund (ETF) to provide additional and sustainable source of funds for agricultural development in Nigeria.

Journal of Agricultural Extension, 2013

An estimated 80% of the maize crop suffers periodic yield reduction due to drought stress. Drough... more An estimated 80% of the maize crop suffers periodic yield reduction due to drought stress. Drought at flowering and grain filling period may cause losses of 40-90%. Predicated on the argument that climate change resulted from changes in climatic elements such as rainfall, this study aimed at investigating the relationship between rainfall, among other factors, and maize crop production in Kaduna state over a period of 15 years. Time series data on aggregate maize production, fertilizer use, total area under cultivation with the maize crop and annual rainfall in Kaduna State for the period 1990-2005 were collected and analysed using multiple regression technique. Findings of the study showed that annual rainfall contributes significantly and positively to maize production in the study area inspite of climate change, indicating that climate change has not significantly altered the pattern of rainfall in the study area in such a way as to affect maize production negatively.

Scientia Agriculturae, 2015

Predicated on the argument that inadequate information on the profitability of irrigated agricult... more Predicated on the argument that inadequate information on the profitability of irrigated agriculture could be a reason behind the very low percentage of farmers engaged in irrigated agriculture in Nigeria; this study set out as a modest attempt towards contributing to the literature on the profitability of irrigated agriculture. Production data were collected from 94 randomly selected irrigated crop farmers during the 2013/14 dry season field activities. Descriptive statistics, measures of farm business performance and benefit-cost ratio were used to achieve the objectives of the study. Findings include that average yield for maize and tomato is 2.38MT/ha and 5.5MT/ha respectively. Average profit per hectare of N38, 419.88 and N80, 313.18 was estimated for irrigated maize and tomato enterprises respectively; the gross ratio (GR) and operating ratio (OR) values calculated for all sampled farms are high, indicating the need to consider ways of reducing production costs and increasing gross income, and the benefit-cost ratios of 1.49 and 1.40 calculated for maize and tomato respectively, implied that the expected benefit will exceed the expected costs. The study concluded that all the enterprises are feasible; and the major threat to the profitability of the enterprises is the fluctuation in producer prices, especially tomato prices.

The Johannesburg Declaration (2002) conceptualized “a collective responsibility to advance and st... more The Johannesburg Declaration (2002) conceptualized “a collective responsibility to advance and strengthen the interdependent and mutually reinforcing pillars of sustainable development—economic development, social development and environmental protection—at local, national, regional and global levels.” However, it is the position of this paper that it will be extremely difficult to achieve whatever the advocates of sustainable development seek to sustain and/or develop, without quality socio-economic research that will generate intellectual inputs required to guide and inform sound policy making, planning and evaluation. Data is the most crucial input that determines the quality of research output which in turn determines the quality of policy, planning and evaluation. Over the years, development scholars have question the availability and reliability of Nigerian published statistical data. This paper set out to probe the reliability of published statistics in Nigeria. To achieve th...

Journal of Agripreneurship and Sustainable Development, Dec 1, 2021

Journal of Agripreneurship and Sustainable Development

Journal of Agricultural Extension and Rural Development, Jan 31, 2011

Academic Journals, Nov 30, 2010

International Journal of Food and Agricultural Economics, 2013

Advance in Agriculture and Biology, 2015

International Journal of Agriculture and Forestry, 2012

Trends in Agricultural Economics, 2012

International Journal of Statistics and Applications, 2012

Journal of Agricultural Extension, 2011

Journal of Agricultural Extension, 2013

Scientia Agriculturae, 2015