Nneka M Chidiebere-Mark holds a PhD in Farm Management and Production Economics. She is a faculty member at Imo State University, Nigeria Address: Nigeria
Journal of Biology, Agriculture and Healthcare, 2014
This study on determinants of access to landholding by female-headed households involved in Indiv... more This study on determinants of access to landholding by female-headed households involved in Individual tenure system in Abia State, Southeast Nigeria was carried out to ascertain the access to farmland by gender in individual tenure systems in the area as well as identifying the factors affecting access to landholding of female-headed cassava-based farming households under individual tenure system. A multi-stage random sampling technique was adopted for this study while data were collected through primary sources. The sample size consists of male and female headed households involved in individual tenure system respectively making a total of 234 cassava farming household respondents. Descriptive statistics as well as multiple regression technique were employed in analyzing the field data. Male headed households had more access to farmland than female headed households. Results show that age, income, asset size, farming experience, level of education, access to credit, land prices an...
The study analysed Cocoa processing and marketing in Abia State, Nigeria. It specifically assesse... more The study analysed Cocoa processing and marketing in Abia State, Nigeria. It specifically assessed the socio-economic characteristics of the cocoa processors, the structure and conduct of cocoa processors, cost and returns, marketing efficiency and constraints to cocoa processing and marketing in the study area. A total of 120 cocoa processors and marketers were randomly selected from the selected local governments purposively chosen using a multistage sampling procedure. Structured questionnaire was used to elicit information from cocoa processors who also engage in marketing of cocoa. Data were analysed using descriptive and inferential statistics. Results show that majority (56.7%) of the processors and marketers were males, with a mean age of 51.35 years, literates (98.3%), married (86.7%), members of cooperative society (75%,), had extension contact (60%) and have a mean household size of 5 persons with 11.2 years processing and marketing experience. Cost and return analysis ...
Cassava-based farmers are faced with a lot of risks and uncertainties and this results to low agr... more Cassava-based farmers are faced with a lot of risks and uncertainties and this results to low agricultural output and hinders the rural farmers from pursuing their farming activities as an enterprise. The study assessed the risks and determinants of risk management strategies among rural cassava-based farmers in Imo State. A multistage sampling technique was used in the selection of respondents. Data were collected with the use of structured questionnaire administered to 180 respondents. Multinomial logit regression model was used to determine the factors influencing the choice of risk management strategies among rural cassava-based farmers in the study area. Results of the study showed that the farmers were of middle-age, fairly educated and have average farm size of one hectare. Majority of the farmers identified loss of crop due to disease (76.11%) and loss due to erosion (73.89%) as sources of risk farmers were exposed to. Also greater number of the respondents adopted practici...
This paper explores the nexus between agricultural production, renewable energy, foreign direct i... more This paper explores the nexus between agricultural production, renewable energy, foreign direct investment (FDI), and carbon emissions in Africa, where there is limited evidence on the topic. Relying on panel data covering thirty-one African countries obtained from the World Bank World Development Indicators and FAOSTAT databases, we answered the question of whether agricultural production (proxied by livestock production, fertilizer consumption, and land under cereal cultivation), the use of renewable energy, and FDI increase or reduce carbon emissions. Using the panel autoregressive distributed lag model for analysis, our results show that net FDI, fertilizer consumption, livestock production significantly increased carbon emissions, both in the short run and long run. Meanwhile, renewable energy use consumption significantly decreased carbon emissions, both in the short run and long run. Specifically, a 1% increase in net FDI increased total carbon emissions by 0.003% in the shor...
The study analysed farmers’ preferences and perception influencing decision to grow biofortified ... more The study analysed farmers’ preferences and perception influencing decision to grow biofortified provitamin A cassava. Specifically, the study described the socio-economic characteristics of cassava farmers in the study area; identified sources of information on biofortified provitamin A cassava; ascertained farmers’ perception of the key attributes of biofortified provitamin A cassava; ascertained farmers’ preference for biofortified provitamin A cassava; analysed sio-economic determinants of willingness to grow bio-fortified provitamin A cassava, and, constraints that hinder farmers’ decision to grow bio-fortified provitamin A cassava. It was hypothesized that the socio-economic characteristics of farmers significantly influence the decision to grow bio-fortified provitamin A cassava. Structured questionnaire and interview schedule were used to elicit data from 90 cassava farmers in the study area. Data collected were analysed using descriptive and inferential statistics. The res...
This study analyzed the interrelationships between participation in MFRMs and dietary diversity o... more This study analyzed the interrelationships between participation in MFRMs and dietary diversity of poultry farming households in Southeast Nigeria. We used cross-sectional data from poultry farmers in Southeast Nigeria and employed instrumental variable and seemingly unrelated regression models to estimate the impact of MFRM participation and major linkages to poultry farm households’ dietary diversity. The results show that participating in MFRMs, relative to traditional markets, improved poultry farmers’ dietary diversity. Moreover, dietary diversity was positively related to higher poultry farm incomes, higher value of own poultry products consumed, and larger area of vegetable cultivated using poultry droppings as manure. Furthermore, increased poultry farm income, higher value of own poultry products consumed, and larger area of vegetable land cultivated using poultry droppings as manure increased the dietary diversity of the farm households. In contrast, a higher share of poul...
Journal of Biology, Agriculture and Healthcare, 2014
This study on determinants of access to landholding by female-headed households involved in Indiv... more This study on determinants of access to landholding by female-headed households involved in Individual tenure system in Abia State, Southeast Nigeria was carried out to ascertain the access to farmland by gender in individual tenure systems in the area as well as identifying the factors affecting access to landholding of female-headed cassava-based farming households under individual tenure system. A multi-stage random sampling technique was adopted for this study while data were collected through primary sources. The sample size consists of male and female headed households involved in individual tenure system respectively making a total of 234 cassava farming household respondents. Descriptive statistics as well as multiple regression technique were employed in analyzing the field data. Male headed households had more access to farmland than female headed households. Results show that age, income, asset size, farming experience, level of education, access to credit, land prices an...
The study analysed Cocoa processing and marketing in Abia State, Nigeria. It specifically assesse... more The study analysed Cocoa processing and marketing in Abia State, Nigeria. It specifically assessed the socio-economic characteristics of the cocoa processors, the structure and conduct of cocoa processors, cost and returns, marketing efficiency and constraints to cocoa processing and marketing in the study area. A total of 120 cocoa processors and marketers were randomly selected from the selected local governments purposively chosen using a multistage sampling procedure. Structured questionnaire was used to elicit information from cocoa processors who also engage in marketing of cocoa. Data were analysed using descriptive and inferential statistics. Results show that majority (56.7%) of the processors and marketers were males, with a mean age of 51.35 years, literates (98.3%), married (86.7%), members of cooperative society (75%,), had extension contact (60%) and have a mean household size of 5 persons with 11.2 years processing and marketing experience. Cost and return analysis ...
Cassava-based farmers are faced with a lot of risks and uncertainties and this results to low agr... more Cassava-based farmers are faced with a lot of risks and uncertainties and this results to low agricultural output and hinders the rural farmers from pursuing their farming activities as an enterprise. The study assessed the risks and determinants of risk management strategies among rural cassava-based farmers in Imo State. A multistage sampling technique was used in the selection of respondents. Data were collected with the use of structured questionnaire administered to 180 respondents. Multinomial logit regression model was used to determine the factors influencing the choice of risk management strategies among rural cassava-based farmers in the study area. Results of the study showed that the farmers were of middle-age, fairly educated and have average farm size of one hectare. Majority of the farmers identified loss of crop due to disease (76.11%) and loss due to erosion (73.89%) as sources of risk farmers were exposed to. Also greater number of the respondents adopted practici...
This paper explores the nexus between agricultural production, renewable energy, foreign direct i... more This paper explores the nexus between agricultural production, renewable energy, foreign direct investment (FDI), and carbon emissions in Africa, where there is limited evidence on the topic. Relying on panel data covering thirty-one African countries obtained from the World Bank World Development Indicators and FAOSTAT databases, we answered the question of whether agricultural production (proxied by livestock production, fertilizer consumption, and land under cereal cultivation), the use of renewable energy, and FDI increase or reduce carbon emissions. Using the panel autoregressive distributed lag model for analysis, our results show that net FDI, fertilizer consumption, livestock production significantly increased carbon emissions, both in the short run and long run. Meanwhile, renewable energy use consumption significantly decreased carbon emissions, both in the short run and long run. Specifically, a 1% increase in net FDI increased total carbon emissions by 0.003% in the shor...
The study analysed farmers’ preferences and perception influencing decision to grow biofortified ... more The study analysed farmers’ preferences and perception influencing decision to grow biofortified provitamin A cassava. Specifically, the study described the socio-economic characteristics of cassava farmers in the study area; identified sources of information on biofortified provitamin A cassava; ascertained farmers’ perception of the key attributes of biofortified provitamin A cassava; ascertained farmers’ preference for biofortified provitamin A cassava; analysed sio-economic determinants of willingness to grow bio-fortified provitamin A cassava, and, constraints that hinder farmers’ decision to grow bio-fortified provitamin A cassava. It was hypothesized that the socio-economic characteristics of farmers significantly influence the decision to grow bio-fortified provitamin A cassava. Structured questionnaire and interview schedule were used to elicit data from 90 cassava farmers in the study area. Data collected were analysed using descriptive and inferential statistics. The res...
This study analyzed the interrelationships between participation in MFRMs and dietary diversity o... more This study analyzed the interrelationships between participation in MFRMs and dietary diversity of poultry farming households in Southeast Nigeria. We used cross-sectional data from poultry farmers in Southeast Nigeria and employed instrumental variable and seemingly unrelated regression models to estimate the impact of MFRM participation and major linkages to poultry farm households’ dietary diversity. The results show that participating in MFRMs, relative to traditional markets, improved poultry farmers’ dietary diversity. Moreover, dietary diversity was positively related to higher poultry farm incomes, higher value of own poultry products consumed, and larger area of vegetable cultivated using poultry droppings as manure. Furthermore, increased poultry farm income, higher value of own poultry products consumed, and larger area of vegetable land cultivated using poultry droppings as manure increased the dietary diversity of the farm households. In contrast, a higher share of poul...
Climate change is a critical challenge for global food security and poverty eradication. Farmers ... more Climate change is a critical challenge for global food security and poverty eradication. Farmers utilize indigenous knowledge of climate smart agricultural practices in adapting and mitigating the effects of climate change in their locality. However this knowledge is rarely taken into consideration in policy design for climate change adaptation and mitigation. The study discussed the state of indigenous knowledge on climate-smart agriculture in Nigeria. This paper attempts to conceptualize the value of indigenous knowledge in climate-smart agriculture; identify indigenous climate-smart agricultural practices and makes recommendations. It was recommended that Successful indigenous knowledge on climate-smart agriculture should be utilized in policy formulations.
Book of Readings in Honour of Prof N.C. Ohazurike, 2023
Like many other developing countries, Nigeria is grappling with the
challenges of meeting the gro... more Like many other developing countries, Nigeria is grappling with the challenges of meeting the growing demand for food, ensuring food security, and improving its population's nutrition and health. Achieving the Sustainable Development Goals (SDGs), which are targeted to end hunger, achieve food security and improved nutrition, and eradicate poverty by 2030, requires transforming the local food system to be sustainable, equitable, and resilient. The task of transforming the food systems in Nigeria is complex and multifaceted and requires the collective efforts of stakeholders across the food supply chain. This paper reviews the current state of the food systems in Nigeria, identifies the significant challenges facing the sector, and proposes pathways for transforming the local food systems in Nigeria.
PATHWAYS TO TRANSFORMING THE LOCAL FOOD SYSTEMS IN ADDRESSING POVERTY AND HUNGER IN NIGERIA, 2023
Like many other developing countries, Nigeria is grappling with the
challenges of meeting the gro... more Like many other developing countries, Nigeria is grappling with the challenges of meeting the growing demand for food, ensuring food security, and improving its population's nutrition and health. Achieving the Sustainable Development Goals (SDGs), which are targeted to end hunger, achieve food security and improved nutrition, and eradicate poverty by 2030, requires transforming the local food system to be sustainable, equitable, and resilient. The task of transforming the food systems in Nigeria is complex and multifaceted and requires the collective efforts of stakeholders across the food supply chain. This paper reviews the current state of the food systems in Nigeria, identifies the significant challenges facing the sector, and proposes pathways for transforming the local food systems in Nigeria.
ANALYSIS OF RICE VALUE CHAIN IN EBONYI STATE, NIGERIA, 2018
This study addresses the demand-supply gap in rice as well as the value addition at various stage... more This study addresses the demand-supply gap in rice as well as the value addition at various stages of the rice value chain in Nigeria. Nigeria is reportedly a net importer of rice in sub-Saharan Africa despite having suitable ecologies for rice production. Respondents were selected from various stages of the value chain and primary data was drawn from the sample to analyze the value chain of rice. The study area was Ebonyi State Nigeria which is located in Eastern Nigeria and the region is a reference point for rice production. Rice value chain actors in this study comprise rice farmers, processors and traders. The structure of the rice value chain was depicted with a Value Chain Map and showed the different levels of the rice value chain in the study area. The results of the returns of rice production using three different production systems showed that Swamp production system had the highest net return per hectare cultivated followed by Lowland and Upland production systems. Labour was a significant component of input cost across the three production systems. Adding value to rice production from paddy to processing was profitable. The analysis of cost and returns associated with the processing of a tonne of milled rice showed that the total margin accruable to traders in the value chain of rice in Ebonyi State from paddy to further processing was 40.75% of the total value. The Linear Programming results suggest that only Swamp production system with a value of 2.64 hectares qualifies for allocation of production resources. Rice value chain actors were constrained by production credit, climate change, seasonality of paddy rice supply, unavailability of affordable modern processing equipment and high transportation cost. It was recommended that Government should provide adequate infrastructure to strengthen the rice value chain in Ebonyi State, Nigeria.
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Papers by DR. NNEKA CHIDIEBERE-MARK
challenges of meeting the growing demand for food, ensuring food security, and improving its population's nutrition and health. Achieving the Sustainable Development Goals (SDGs), which are targeted to end hunger, achieve food security and improved nutrition, and eradicate poverty by 2030, requires transforming the local food system to be sustainable, equitable, and resilient. The task of transforming the food systems in Nigeria is complex and multifaceted and requires the collective efforts of stakeholders across the food supply chain. This paper reviews the current state of the food systems in Nigeria, identifies the significant challenges facing the sector, and proposes pathways for transforming the local food systems in Nigeria.
challenges of meeting the growing demand for food, ensuring food security, and improving its population's nutrition and health. Achieving the Sustainable Development Goals (SDGs), which are targeted to end hunger, achieve food security and improved nutrition, and eradicate poverty by 2030, requires transforming the local food system to be sustainable, equitable, and resilient. The task of transforming the food systems in Nigeria is complex and multifaceted and requires the collective efforts of stakeholders across the food supply chain. This paper reviews the current state of the food systems in Nigeria, identifies the significant challenges facing the sector, and proposes pathways for transforming the local food systems in Nigeria.