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The increasing rate of youth unemployment in Africa, particularly in Nigeria, remains among the challenges to social and economic stability. Accordingly, the Nigerian government implemented several interventions, including the Youth-in-Agribusiness (YIA) program to reduce youth unemployment. However, the effect of these programs on gainful employment creation is yet to be documented. Therefore, this study examined the impact of the YIA program on creating gainful employment among the youth. Multistage random sampling was used to obtain cross-sectional data from 668 youth in Southwestern Nigeria. Propensity score matching and endogenous switching probit techniques were used for the estimations. Results indicated that variables such as educational attainment, access to training, non-agricultural activity, membership in a youth organization, access to credit, productive resources, and youth location were significant and positively influenced youth decision to participate in the YIA program. Furthermore, participation in the YIA program has a significant positive impact on gainful employment among the youth. Therefore, the study recommends that strengthening social capital such as youth organization, credit scheme (financed by private and government), vocational training, and educational system is vital in enhancing participation in the YIA program and eventually gainful employment of youth.
Lateef Bello; Lloyd Baiyegunhi; Djana Mignouna; Razack Adeoti; Paul Dontsop-Nguezet; Tahirou Abdoulaye; Victor Manyong; Zoumana Bamba; Bola Awotide. Impact of Youth-in-Agribusiness Program on Employment Creation in Nigeria. Sustainability 2021, 13, 7801 .
AMA StyleLateef Bello, Lloyd Baiyegunhi, Djana Mignouna, Razack Adeoti, Paul Dontsop-Nguezet, Tahirou Abdoulaye, Victor Manyong, Zoumana Bamba, Bola Awotide. Impact of Youth-in-Agribusiness Program on Employment Creation in Nigeria. Sustainability. 2021; 13 (14):7801.
Chicago/Turabian StyleLateef Bello; Lloyd Baiyegunhi; Djana Mignouna; Razack Adeoti; Paul Dontsop-Nguezet; Tahirou Abdoulaye; Victor Manyong; Zoumana Bamba; Bola Awotide. 2021. "Impact of Youth-in-Agribusiness Program on Employment Creation in Nigeria." Sustainability 13, no. 14: 7801.
With data from 683 systematically selected households, the study employed the Heckman two-stage model and the propensity score matching method (PSM) to examine the impact of youth participation in agriculture as a primary occupation on income and poverty in Nigeria. The results indicate that the gender of the youth and their determination to stay in agriculture significantly increases the probability that youth will participate in agriculture as a primary occupation. In addition, youth participation in agriculture as a main occupation contributes significantly to per capita household income and has the likelihood to reduce poverty by 17%. The daily wage rate of hired labor and the total farmland owned are the variables that positively explained the per capita income. Poverty was reduced by market access, having agriculture as a primary occupation, income from agricultural production, the total monetary value of all the household assets, determination to remain in agriculture, and the square of the respondents’ age. These results imply that creating employment for youth by engaging them in agriculture as a full-time occupation can increase their income and reduce poverty. However, the promotion of other secondary occupations, land, and market access is also vital.
Romanus Osabohien; Alexander Wiredu; Paul Nguezet; Djana Mignouna; Tahirou Abdoulaye; Victor Manyong; Zoumana Bamba; Bola Awotide. Youth Participation in Agriculture and Poverty Reduction in Nigeria. Sustainability 2021, 13, 7795 .
AMA StyleRomanus Osabohien, Alexander Wiredu, Paul Nguezet, Djana Mignouna, Tahirou Abdoulaye, Victor Manyong, Zoumana Bamba, Bola Awotide. Youth Participation in Agriculture and Poverty Reduction in Nigeria. Sustainability. 2021; 13 (14):7795.
Chicago/Turabian StyleRomanus Osabohien; Alexander Wiredu; Paul Nguezet; Djana Mignouna; Tahirou Abdoulaye; Victor Manyong; Zoumana Bamba; Bola Awotide. 2021. "Youth Participation in Agriculture and Poverty Reduction in Nigeria." Sustainability 13, no. 14: 7795.
Although the agri-food sector has a huge potential to offer attractive employment opportunities for Africa’s burgeoning youth, a negative perception of agriculture persists among Cameroonian youths, such as in many other African countries. The paper assesses the determinants of university students’ choices and preferences for agricultural sub-sector engagement in Cameroon. A multistage random sampling technique was used to select 550 students from two state universities. We used the SWOT analysis to evaluate students’ perceptions of challenges and opportunities within the agricultural sector in Cameroon, the binomial probit analysis to assess the determinants of students’ choices of agriculture as a university major, and an ordered probit analysis to evaluate the determinants of students’ preferences of agricultural sub-sector engagement. Findings reveal that choice of agriculture as a university major is significantly determined by sex, pre-university farming experience, pre-university academic background, mother’s level of education, and household income. Likewise, preference of agricultural sub-sector engagement is significantly determined by the student’s level of study and location of a childhood home. Improving the attractiveness of, and working conditions in, the agricultural sector could increase youth engagement in agribusiness and rural economic activities. The results also reinforce the need to increase household income in Cameroon, as this could lift families out of poverty and offer them more economic opportunities. Policies that regulate levels of education can equally be used to allocate human resources into different agricultural sub-sectors, subject to felt needs.
Cynthia Mkong; Tahirou Abdoulaye; Paul Dontsop-Nguezet; Zoumana Bamba; Victor Manyong; Godlove Shu. Determinant of University Students’ Choices and Preferences of Agricultural Sub-Sector Engagement in Cameroon. Sustainability 2021, 13, 6564 .
AMA StyleCynthia Mkong, Tahirou Abdoulaye, Paul Dontsop-Nguezet, Zoumana Bamba, Victor Manyong, Godlove Shu. Determinant of University Students’ Choices and Preferences of Agricultural Sub-Sector Engagement in Cameroon. Sustainability. 2021; 13 (12):6564.
Chicago/Turabian StyleCynthia Mkong; Tahirou Abdoulaye; Paul Dontsop-Nguezet; Zoumana Bamba; Victor Manyong; Godlove Shu. 2021. "Determinant of University Students’ Choices and Preferences of Agricultural Sub-Sector Engagement in Cameroon." Sustainability 13, no. 12: 6564.
The proponents of the entrepreneurial motivation dichotomy have argued that opportunity-driven entrepreneurs are more likely to succeed and sustain in entrepreneurship, unlike people who start-up businesses out of necessity. However, disagreement still exists on why and under which conditions the former might outperform the latter. This research contributes to this debate by examining the mediation role of psychological capital in the relationship between entrepreneurial motivation and business success among youths. This study relied on a random sample of 295 young entrepreneurs surveyed from Bukavu in the Democratic Republic of the Congo (DRC). We applied partial least squares to analyze the hypothesized relationships. Evidence for the positive effect of opportunity-led motivation on psychological capital was found, but the findings did not support any direct effect of entrepreneurial motivation on business success. Instead, psychological capital positively and significantly mediated the relationship between entrepreneurial motivation and business success. This paper makes a distinctive new contribution to the understanding of the intriguing and controversial entrepreneurial motivation dichotomy—a business success relationship. To this end, we have found out that opportunity entrepreneurs have 3% more chance of succeeding in businesses compared to necessity entrepreneurs, because the former outperform the latter by 4% in the dimensions of psychological capital. This paper has new policy implications, as it reveals the great importance of psychological capital in promoting business success, thus reducing unemployment among youths, and offers tips from which psychological capital can be built or improved.
Akilimali Ephrem; Paul Nguezet; Ishara Charmant; McEDWARD Murimbika; Bola Awotide; Abdoulaye Tahirou; Mulindangabo Lydie; Victor Manyong. Entrepreneurial Motivation, Psychological Capital, and Business Success of Young Entrepreneurs in the DRC. Sustainability 2021, 13, 4087 .
AMA StyleAkilimali Ephrem, Paul Nguezet, Ishara Charmant, McEDWARD Murimbika, Bola Awotide, Abdoulaye Tahirou, Mulindangabo Lydie, Victor Manyong. Entrepreneurial Motivation, Psychological Capital, and Business Success of Young Entrepreneurs in the DRC. Sustainability. 2021; 13 (8):4087.
Chicago/Turabian StyleAkilimali Ephrem; Paul Nguezet; Ishara Charmant; McEDWARD Murimbika; Bola Awotide; Abdoulaye Tahirou; Mulindangabo Lydie; Victor Manyong. 2021. "Entrepreneurial Motivation, Psychological Capital, and Business Success of Young Entrepreneurs in the DRC." Sustainability 13, no. 8: 4087.
The Democratic Republic of the Congo (DRC) is a country with a high agricultural productivity potential; however, the agribusiness sector remains unattractive to youths. This study examined the extent to which perceived social norms and psychological capital affect youths’ intentions to pursue agribusiness opportunities in the Eastern DRC. Data was collected on a sample of 600 youths. We applied Partial Least Squares Structural Equation Modelling (PLS−SEM) in order to examine the relationship between the variables. The findings indicated that most of the youths did not select agribusiness as their top career choice. The intention to engage in agribusiness activities was significantly higher among the youths who perceived that agribusiness was socially valued and supported. Psychological capital significantly and positively affects youths’ agripreneurial intention. The findings contribute to the underlying Theory of Planned Behavior by supporting a positive mediation role of psychological capital—and the moderating roles of educational level, gender, access to land, and location—on the relationship between perceived social norms and agripreneurial intention. The paper concludes that the provision of funds is not enough to promote youth agripreneurship in an environment in which agricultural-related social norms, youths’ psychological capital, gender, access to land, educational level, and location (rural versus urban) are not thoroughly considered.
Akilimali Ephrem; Paul Nguezet; McEDWARD Murimbika; Zoumana Bamba; Victor Manyong. Perceived Social Norms and Agripreneurial Intention among Youths in Eastern DRC. Sustainability 2021, 13, 3442 .
AMA StyleAkilimali Ephrem, Paul Nguezet, McEDWARD Murimbika, Zoumana Bamba, Victor Manyong. Perceived Social Norms and Agripreneurial Intention among Youths in Eastern DRC. Sustainability. 2021; 13 (6):3442.
Chicago/Turabian StyleAkilimali Ephrem; Paul Nguezet; McEDWARD Murimbika; Zoumana Bamba; Victor Manyong. 2021. "Perceived Social Norms and Agripreneurial Intention among Youths in Eastern DRC." Sustainability 13, no. 6: 3442.
The International Institute of Tropical Agriculture (IITA) has applied the concept of ‘circular bioeconomy’ to design solutions to address the degradation of natural resources, nutrient-depleted farming systems, hunger, and poverty in sub-Saharan Africa (SSA). Over the past decade, IITA has implemented ten circular bioeconomy focused research for development (R4D) interventions in several countries in the region. This article aims to assess the contributions of IITA’s circular bioeconomy focused innovations towards economic, social, and environmental outcomes using the outcome tracking approach, and identify areas for strengthening existing circular bioeconomy R4D interventions using the gap analysis method. Data used for the study came from secondary sources available in the public domain. Results indicate that IITA’s circular bioeconomy interventions led to ten technological innovations (bio-products) that translated into five economic, social, and environmental outcomes, including crop productivity, food security, resource use efficiency, job creation, and reduction in greenhouse gas emissions. Our gap analysis identified eight gaps leading to a portfolio of five actions needed to enhance the role of circular bioeconomy in SSA. The results showcase the utility of integrating a circular bioeconomy approach in R4D work, especially how using such an approach can lead to significant economic, social, and environmental outcomes. The evidence presented can help inform the development of a framework to guide circular bioeconomy R4D at IITA and other research institutes working in SSA. Generating a body of evidence on what works, including the institutional factors that create enabling environments for circular bioeconomy approaches to thrive, is necessary for governments and donors to support circular bioeconomy research that will help solve some of the most pressing challenges in SSA as populations grow and generate more waste, thus exacerbating a changing climate using the linear economy model.
Shiferaw Feleke; Steven Cole; Haruna Sekabira; Rousseau Djouaka; Victor Manyong. Circular Bioeconomy Research for Development in Sub-Saharan Africa: Innovations, Gaps, and Actions. Sustainability 2021, 13, 1926 .
AMA StyleShiferaw Feleke, Steven Cole, Haruna Sekabira, Rousseau Djouaka, Victor Manyong. Circular Bioeconomy Research for Development in Sub-Saharan Africa: Innovations, Gaps, and Actions. Sustainability. 2021; 13 (4):1926.
Chicago/Turabian StyleShiferaw Feleke; Steven Cole; Haruna Sekabira; Rousseau Djouaka; Victor Manyong. 2021. "Circular Bioeconomy Research for Development in Sub-Saharan Africa: Innovations, Gaps, and Actions." Sustainability 13, no. 4: 1926.
In a country of about 200million people, the government has over the years constituted various initiatives to address the issue of unemployment, food security, and youth involvement in agriculture. However, the impact of these initiatives has been minimal due to the inconsistency in government policies, changes in government, inadequate implementation mechanism amongst others. This study, therefore, evaluated the impact of the N-power Agro Program on youth employment and income generation through agribusiness in Nigeria. Six hundred and forty-five respondents were randomly selected from the database of N-Power. Structured questionnaires were used in obtaining the data. The statistical analysis of collected data applied descriptive methods, logistic regression model, and regression discontinuity design. The value of ATE of the regression discontinuity design of the income of the participants of N-Power Agro is greater by N30,191.46 than for the nonparticipants. The result of the logistic regression model shows that age, level of education, years of agribusiness experience, and employment status significantly influenced the choice of creating employment through agribusiness and of participating in the N-Power Agro program. The impact of the N-Power Agro program for Nigeria’s young men and women on employment and income generation for participants was shown to be effective and positive with the RDD recording an increase in the beneficiaries’ income and a discontinuity in the design. Upscaling this program and wider implementation in other countries in collaborations with youth, rural communities and private sectors will ensure that the government can bridge the skills deficit in Africa’s youth, develop their capacities for entrepreneurship, and hence, increase jobs creation.
Adewale M. Ogunmodede; Mary O. Ogunsanwo; Victor Manyong. Unlocking the Potential of Agribusiness in Africa through Youth Participation: An Impact Evaluation of N-Power Agro Empowerment Program in Nigeria. Sustainability 2020, 12, 5737 .
AMA StyleAdewale M. Ogunmodede, Mary O. Ogunsanwo, Victor Manyong. Unlocking the Potential of Agribusiness in Africa through Youth Participation: An Impact Evaluation of N-Power Agro Empowerment Program in Nigeria. Sustainability. 2020; 12 (14):5737.
Chicago/Turabian StyleAdewale M. Ogunmodede; Mary O. Ogunsanwo; Victor Manyong. 2020. "Unlocking the Potential of Agribusiness in Africa through Youth Participation: An Impact Evaluation of N-Power Agro Empowerment Program in Nigeria." Sustainability 12, no. 14: 5737.
Involvement of youth in horticulture agribusiness has become a vital approach to create employment opportunities among the youth in Tanzania. This study aimed at examining the extent of youth participation and factors influencing youth involvement in horticulture agribusiness with a focus on innovations in post-harvest management (PHM). Data were collected from a sample of 576 male and female youth in Njombe region using a multi-stage random sampling technique. Data were analyzed using an ordered logit model and descriptive statistics. Results of the ordered logit analysis showed that primary school education, Form IV and above, management innovation, access to credit, good perception of horticulture for agribusiness and improved packaging materials positively and significantly influence youth involvement in horticulture agribusiness. Gender and land size had a negative and significant influence on youth involvement in horticulture agribusiness, as indicated by higher percentages of male youth (59%) participation in the horticulture agribusiness. Therefore, this study suggests increased investment in capacity development of the youth on PHM innovations and the development of rural infrastructure such as agro-processing and storage facilities by the government and private sector. Increasing the availability of improved packaging materials and provision of youth-friendly credit schemes could encourage youth in horticulture agribusiness.
Adella Albert Ng’Atigwa; Aloyce Hepelwa; Mastewal Yami; Victor Manyong. Assessment of Factors Influencing Youth Involvement in Horticulture Agribusiness in Tanzania: A Case Study of Njombe Region. Agriculture 2020, 10, 287 .
AMA StyleAdella Albert Ng’Atigwa, Aloyce Hepelwa, Mastewal Yami, Victor Manyong. Assessment of Factors Influencing Youth Involvement in Horticulture Agribusiness in Tanzania: A Case Study of Njombe Region. Agriculture. 2020; 10 (7):287.
Chicago/Turabian StyleAdella Albert Ng’Atigwa; Aloyce Hepelwa; Mastewal Yami; Victor Manyong. 2020. "Assessment of Factors Influencing Youth Involvement in Horticulture Agribusiness in Tanzania: A Case Study of Njombe Region." Agriculture 10, no. 7: 287.
This article evaluates the impact of cowpea market participation on household food security and income in northern Nigeria. Using household survey data from a representative sample of over 1,500 farm households and applying a combination of instrumental variable techniques and dose–response functions, we found that cowpea market participation had a statistically significant positive impact on household food security and income. Cowpea market participation increased food expenditure by 1.6% and household income by 0.7% with a 10 unit increase in the quantity of cowpea sold. These results underscore the importance of cowpea market participation for household food security and income improvement. We also found that selling cowpea to rural and urban traders significantly increased household income, food expenditure, and food security. Results show that selling cowpea to rural and urban traders increased household income by 17% and 13%, respectively. The results point to the need for an enabling policy environment and public infrastructure to enhance market participation of farmers and traders. Public infrastructure investments in the form of feeder road construction and maintenance in the distant villages are encouraged, which in the long run can translate into improved cowpea productivity and welfare of smallholder farmers.
Julius Manda; Arega D. Alene; Adane Hirpa Tufa; Shiferaw Feleke; Tahirou Abdoulaye; Lucky O. Omoigui; Victor Manyong. Market participation, household food security, and income: The case of cowpea producers in northern Nigeria. Food and Energy Security 2020, 9, 1 .
AMA StyleJulius Manda, Arega D. Alene, Adane Hirpa Tufa, Shiferaw Feleke, Tahirou Abdoulaye, Lucky O. Omoigui, Victor Manyong. Market participation, household food security, and income: The case of cowpea producers in northern Nigeria. Food and Energy Security. 2020; 9 (3):1.
Chicago/Turabian StyleJulius Manda; Arega D. Alene; Adane Hirpa Tufa; Shiferaw Feleke; Tahirou Abdoulaye; Lucky O. Omoigui; Victor Manyong. 2020. "Market participation, household food security, and income: The case of cowpea producers in northern Nigeria." Food and Energy Security 9, no. 3: 1.
Soybean constitutes an important component of the maize-based smallholder cropping systems in Malawi and holds considerable potential for countering soil fertility decline, enhancing household food and nutrition security, and raising rural incomes. A number of yield-enhancing improved soybean varieties and agronomic practices (ISVAPs) have been developed and disseminated in Malawi, but there is limited evidence on the adoption and impacts of these technologies. This paper assesses the productivity and income effects of adopting ISVAPs using plot level data collected from a nationally representative sample of 1237 soybean growing households in Malawi. Our results show that over a third of the sampled households have adopted ISVAPs. Furthermore, results from a stochastic dominance analysis showed that soybean yields and net crop incomes for adopters are significantly higher than those of non-adopters over the entire probability distribution of ISVAPs adoption. Endogenous switching regression model results further demonstrated that adoption of ISVAPs is associated with an average of 61% yield gain and 53% income gain for adopters. Overall, the results point to the need for further scaling of ISVAPs for greater adoption and impact on the livelihoods of smallholder farmers in Malawi.
Adane Hirpa Tufa; Arega D. Alene; Julius Manda; M.G. Akinwale; David Chikoye; Shiferaw Feleke; Tesfamicheal Wossen; Victor Manyong. The productivity and income effects of adoption of improved soybean varieties and agronomic practices in Malawi. World Development 2019, 124, 104631 .
AMA StyleAdane Hirpa Tufa, Arega D. Alene, Julius Manda, M.G. Akinwale, David Chikoye, Shiferaw Feleke, Tesfamicheal Wossen, Victor Manyong. The productivity and income effects of adoption of improved soybean varieties and agronomic practices in Malawi. World Development. 2019; 124 ():104631.
Chicago/Turabian StyleAdane Hirpa Tufa; Arega D. Alene; Julius Manda; M.G. Akinwale; David Chikoye; Shiferaw Feleke; Tesfamicheal Wossen; Victor Manyong. 2019. "The productivity and income effects of adoption of improved soybean varieties and agronomic practices in Malawi." World Development 124, no. : 104631.
Adoption of improved agricultural technologies has long been recognized as critical for reducing poverty through increased productivity, incomes, and asset accumulation. Using a nationally representative survey data from a sample of over 1500 households in Nigeria, this paper evaluates the impacts of adoption of improved cowpea varieties on income and asset poverty reduction using an endogenous switching regression model. The results showed that adoption of improved cowpea varieties increased per capita household income and asset ownership by 17 and 24 percentage points, respectively. The results based on the observed and counterfactual income and asset distributions further showed that adoption reduced both income poverty and asset poverty by 5 percentage points. The paper concludes with a discussion of the policy options for increasing adoption and impacts of improved cowpea varieties in Nigeria.
Julius Manda; Arega D. Alene; Adane H. Tufa; Tahirou Abdoulaye; Tesfamicheal Wossen; David Chikoye; Victor Manyong. The poverty impacts of improved cowpea varieties in Nigeria: A counterfactual analysis. World Development 2019, 122, 261 -271.
AMA StyleJulius Manda, Arega D. Alene, Adane H. Tufa, Tahirou Abdoulaye, Tesfamicheal Wossen, David Chikoye, Victor Manyong. The poverty impacts of improved cowpea varieties in Nigeria: A counterfactual analysis. World Development. 2019; 122 ():261-271.
Chicago/Turabian StyleJulius Manda; Arega D. Alene; Adane H. Tufa; Tahirou Abdoulaye; Tesfamicheal Wossen; David Chikoye; Victor Manyong. 2019. "The poverty impacts of improved cowpea varieties in Nigeria: A counterfactual analysis." World Development 122, no. : 261-271.
Engaging rural youth in agribusiness has become an important strategy to create employment opportunities in Africa. To this end, governments and development partners have implemented various interventions that facilitate youth engagement in agribusiness for several years. However, there is a dearth of evidence on what worked and what did not work well, making it difficult to inform evidence-based policy making. In an effort to fill this knowledge gap, a comprehensive literature review of the outcomes of interventions related to youth engagement in agribusiness was conducted using a deductive coding approach. Results showed that the interventions implemented by governments and development partners across Africa have succeeded in producing favorable outcomes despite some limitations. Interventions that integrate capacity development, financial support for startups, and continuous mentorship on the technical and financial aspects of youth-run agribusiness projects proved successful in enhancing youth engagement in agribusiness. This suggests that the design and implementation of future interventions should be based on an integrated approach that considers diversity of youths’ aspirations and shared capabilities, interests, expectations, as well as challenges associated with access to resources and participation in collective action. The design of future interventions should also be built on strong partnerships among rural communities, academia, research, and private sector for increased impact on livelihood improvements.
Mastewal Yami; Shiferaw Feleke; Tahirou Abdoulaye; Arega D. Alene; Zoumana Bamba; Victor Manyong. African Rural Youth Engagement in Agribusiness: Achievements, Limitations, and Lessons. Sustainability 2019, 11, 185 .
AMA StyleMastewal Yami, Shiferaw Feleke, Tahirou Abdoulaye, Arega D. Alene, Zoumana Bamba, Victor Manyong. African Rural Youth Engagement in Agribusiness: Achievements, Limitations, and Lessons. Sustainability. 2019; 11 (1):185.
Chicago/Turabian StyleMastewal Yami; Shiferaw Feleke; Tahirou Abdoulaye; Arega D. Alene; Zoumana Bamba; Victor Manyong. 2019. "African Rural Youth Engagement in Agribusiness: Achievements, Limitations, and Lessons." Sustainability 11, no. 1: 185.
Lambda-cyhalothrin (λ-cyhalothrin) is the most commonly used pyrethroid insecticide for vegetable farming in Benin. This insecticide is misused and overused by farmers, and hence may pose health hazards to consumers. We monitored λ-cyhalothrin residues in lettuce and cabbage from farms at the market gates in Cotonou and Parakou using high performance liquid chromatography (HPLC) analysis techniques. These residues were also monitored on samples directly from farms (on-farm sampling) for 14 days post-treatment. Potential factors such as photolysis and hydrolysis involved in λ-cyhalothrin degradation were also screened. Results revealed that the level of λ-cyhalothrin residue concentrations in lettuce from Houeyiho decreased from 4.2 mg/kg on Day 1 to about 0.2 mg/kg on Day 7. On Day 9, analyzed lettuces were all λ-cyhalothrin free. In contrast, even 14 days after treatment of cabbage from Bawera (Parakou), we still recorded the presence of λ-cyhalothrin residues in analyzed samples. For samples from market gates, λ-cyhalothrin residues were found in lettuce from two markets out of the nine surveyed in Cotonou. Interestingly, none of these contaminated samples had residues above the maximum residue limit for lettuce (MRL = 0.5 mg/kg). Similarly, in Parakou, samples from all five surveyed vegetable markets were contaminated with λ-cyhalothrin residues at concentrations below the MRL for cabbage (MRL = 0.2 mg/kg). We conclude that λ-cyhalothrin residues in lettuce and cabbage from farms and markets in Parakou and Cotonou are within the MRL, and hence are relatively safe for consumption.
Rousseau Djouaka; Murielle Farrelle Soglo; Michael Olugbenga Kusimo; Razack Adéoti; Armand Talom; Francis Zeukeng; Armand Paraïso; Victor Afari-Sefa; May-Guri Saethre; Victor Manyong; Manuele Tamò; Jeff Waage; Jo Lines; George Mahuku. The Rapid Degradation of Lambda-Cyhalothrin Makes Treated Vegetables Relatively Safe for Consumption. International Journal of Environmental Research and Public Health 2018, 15, 1536 .
AMA StyleRousseau Djouaka, Murielle Farrelle Soglo, Michael Olugbenga Kusimo, Razack Adéoti, Armand Talom, Francis Zeukeng, Armand Paraïso, Victor Afari-Sefa, May-Guri Saethre, Victor Manyong, Manuele Tamò, Jeff Waage, Jo Lines, George Mahuku. The Rapid Degradation of Lambda-Cyhalothrin Makes Treated Vegetables Relatively Safe for Consumption. International Journal of Environmental Research and Public Health. 2018; 15 (7):1536.
Chicago/Turabian StyleRousseau Djouaka; Murielle Farrelle Soglo; Michael Olugbenga Kusimo; Razack Adéoti; Armand Talom; Francis Zeukeng; Armand Paraïso; Victor Afari-Sefa; May-Guri Saethre; Victor Manyong; Manuele Tamò; Jeff Waage; Jo Lines; George Mahuku. 2018. "The Rapid Degradation of Lambda-Cyhalothrin Makes Treated Vegetables Relatively Safe for Consumption." International Journal of Environmental Research and Public Health 15, no. 7: 1536.
Tesfamicheal Wossen; Tahirou Abdoulaye; Arega Alene; Pierre Nguimkeu; Shiferaw Feleke; Ismail Y. Rabbi; Mekbib G. Haile; Victor M. Manyong. “Estimating the Productivity Impacts of Technology Adoption in the Presence of Misclassification”—Author Response to Comment. American Journal of Agricultural Economics 2018, 101, 19 -19.
AMA StyleTesfamicheal Wossen, Tahirou Abdoulaye, Arega Alene, Pierre Nguimkeu, Shiferaw Feleke, Ismail Y. Rabbi, Mekbib G. Haile, Victor M. Manyong. “Estimating the Productivity Impacts of Technology Adoption in the Presence of Misclassification”—Author Response to Comment. American Journal of Agricultural Economics. 2018; 101 (1):19-19.
Chicago/Turabian StyleTesfamicheal Wossen; Tahirou Abdoulaye; Arega Alene; Pierre Nguimkeu; Shiferaw Feleke; Ismail Y. Rabbi; Mekbib G. Haile; Victor M. Manyong. 2018. "“Estimating the Productivity Impacts of Technology Adoption in the Presence of Misclassification”—Author Response to Comment." American Journal of Agricultural Economics 101, no. 1: 19-19.
Knowledge on the spread and distribution of insecticide resistance in major malaria vectors such as Anopheles funestus is key to implement successful resistance management strategies across Africa. Here, by assessing the susceptibility status of an inland population of An. funestus Giles (Kpome) and investigating molecular basis of resistance, we show that multiple resistance and consistent plasmodium infection rate are present in Anopheles funestus populations from Kpome. The insecticide susceptibility level of collected Anopheles funestus was assessed. Synergist (PBO) was used to screen resistance mechanisms. The TaqMan technique was used for genotyping of insecticide resistant alleles and detecting plasmodium infection levels. The nested PCR was used to further assess the plasmodium infection rate. The TaqMan analysis of plasmodial infections revealed an infection rate (18.2 %) of An. funestus in this locality. The WHO bioassays revealed a multiple phenotypic resistance profile for An. funestus in Kpome. This population is highly resistant to pyrethroids (permethrin and deltamethrin), organochlorines (DDT), and carbamates (bendiocarb). A reduced susceptibility was observed with dieldrin. Mortalities did not vary after pre-exposure to PBO for DDT indicating that cytochrome P450s play little role in DDT resistance in Kpome. In contrast, we noticed, a significant increase in mortalities when PBO was combined to permethrin suggesting the direct involvement of P450s in pyrethroid resistance. A high frequency of the L119F-GSTe2 DDT resistance marker was observed in the wild DDT resistant population (9 %RS and 91 %RR) whereas the A296S mutation was detected at a low frequency (1 %RS and 99 %SS). The presence of multiple resistance in An. funestus populations in the inland locality of Kpome is established in this study as recently documented in the costal locality of Pahou. Data from both localities suggest that resistance could be widespread in Benin and this highlights the need for further studies to assess the geographical distribution of insecticide resistance across Benin and neighboring countries as well as a more comprehensive analysis of the resistance mechanisms involved.
Rousseau Djouaka; Jacob M. Riveron; Akadiri Yessoufou; Genevieve Tchigossou; Romaric Akoton; Helen Irving; Innocent Djegbe; Kabirou Moutairou; Razack Adeoti; Manuele Tamò; Victor Manyong; Charles S. Wondji. Multiple insecticide resistance in an infected population of the malaria vector Anopheles funestus in Benin. Parasites & Vectors 2016, 9, 1 -12.
AMA StyleRousseau Djouaka, Jacob M. Riveron, Akadiri Yessoufou, Genevieve Tchigossou, Romaric Akoton, Helen Irving, Innocent Djegbe, Kabirou Moutairou, Razack Adeoti, Manuele Tamò, Victor Manyong, Charles S. Wondji. Multiple insecticide resistance in an infected population of the malaria vector Anopheles funestus in Benin. Parasites & Vectors. 2016; 9 (1):1-12.
Chicago/Turabian StyleRousseau Djouaka; Jacob M. Riveron; Akadiri Yessoufou; Genevieve Tchigossou; Romaric Akoton; Helen Irving; Innocent Djegbe; Kabirou Moutairou; Razack Adeoti; Manuele Tamò; Victor Manyong; Charles S. Wondji. 2016. "Multiple insecticide resistance in an infected population of the malaria vector Anopheles funestus in Benin." Parasites & Vectors 9, no. 1: 1-12.
Shiferaw Feleke; Victor Manyong; Tahirou Abdoulaye; Arega D. Alene. Assessing the impacts of cassava technology on poverty reduction in Africa. Studies in Agricultural Economics 2016, 118, 101 -111.
AMA StyleShiferaw Feleke, Victor Manyong, Tahirou Abdoulaye, Arega D. Alene. Assessing the impacts of cassava technology on poverty reduction in Africa. Studies in Agricultural Economics. 2016; 118 (2):101-111.
Chicago/Turabian StyleShiferaw Feleke; Victor Manyong; Tahirou Abdoulaye; Arega D. Alene. 2016. "Assessing the impacts of cassava technology on poverty reduction in Africa." Studies in Agricultural Economics 118, no. 2: 101-111.
This article analysed farmers' perceptions of the effects of coconut mite in their livelihood and assessed crop diversification as a copping strategy for reduced coconut production. A socio-economic model of farmers' decisions on intercropping as an indicator for overall crop diversity was developed. The study was conducted between November 2009 and March 2010 in five districts in Tanzania, which were selected on the basis of the coconut's economic importance, using structured questionnaires which were administered to 200 household heads. Respondents were categorized in three groups – resource-poor farmers (43% of sample), medium-level farmers (50%) and well-off farmers (7%) according to six criteria. More than 80% of farmers were aware of the negative effects of the coconut mite. The result further indicated that the damaged nuts cause a loss of more than 30% of the cash income from coconut. Intercropping coconut with cassava, maize, cashew nut, sorghum and pineapples were the alternatives used by farmers to cope with declining coconut production caused by coconut mite and lethal yellowing disease. Land ownership and size, income from crops, non-farm income and family size were the main factors that influenced the farmer's decision to diversify crops. Although farmers diversify their cropping systems in order to be self-reliant, there is still a need to promote policies and programmes that will address coconut production constraints such pests and diseases such as rehabilitation of old plantations.
Jofrey M. Oleke; Aida Isinika; Victor Manyong; Rachid Hanna; Maurice Sabelis. Farmers' perception of coconut mite damage and crop diversification alternatives in the coastal belt of Tanzania. International Journal of Acarology 2012, 38, 471 -479.
AMA StyleJofrey M. Oleke, Aida Isinika, Victor Manyong, Rachid Hanna, Maurice Sabelis. Farmers' perception of coconut mite damage and crop diversification alternatives in the coastal belt of Tanzania. International Journal of Acarology. 2012; 38 (6):471-479.
Chicago/Turabian StyleJofrey M. Oleke; Aida Isinika; Victor Manyong; Rachid Hanna; Maurice Sabelis. 2012. "Farmers' perception of coconut mite damage and crop diversification alternatives in the coastal belt of Tanzania." International Journal of Acarology 38, no. 6: 471-479.
This study explores the intra-household impact of improved dual-purpose cowpea (IDPC) from a gender perspective, in terms of productivity and food, fodder, and income availability, the impact of which is linked to the income thus placed in the women's hands. Surplus income is important in providing food and nutritional benefits to the home, particularly during periods of risk. More importantly, income generated through the adoption of improved cowpea varieties has entered a largely female domain, where transfers of income reserves were passed on between women of different ages, with significant impact in terms of social and economic development. However, the technology has strengthened the separation of working spheres between men and women. Future technologies should, from the outset, explore provisions existing within the local rubric, to focus on women with the aim of expanding their participation in agriculture with the associated benefits to their families.
Annita Tipilda; Arega Alene; Victor M. Manyong. Engaging with cultural practices in ways that benefit women in northern Nigeria. Development in Practice 2008, 18, 551 -563.
AMA StyleAnnita Tipilda, Arega Alene, Victor M. Manyong. Engaging with cultural practices in ways that benefit women in northern Nigeria. Development in Practice. 2008; 18 (4-5):551-563.
Chicago/Turabian StyleAnnita Tipilda; Arega Alene; Victor M. Manyong. 2008. "Engaging with cultural practices in ways that benefit women in northern Nigeria." Development in Practice 18, no. 4-5: 551-563.
Crop-livestock integration (CLI) to improve natural resource management for increased productivity is evolving in Nigeria and West Africa. Processes in the evolution and factors that influence it still need to be well understood. This article proposes and tests a new framework for measuring the multiple dimensionality of CLI. The framework derives a CLI index using the principal components of its most common single measures; it develops geographic information systems (GIS)-based village-level ecological and market factors; and it estimates parameters of factors affecting CLI using the derived index as the dependent variable in a Tobit model. The framework is tested using empirical data from 634 farm households in 11 geo-referenced villages in the Sudan savanna (SS) and northern Guinea savanna (NGS), Nigeria. Along a north-south (SS to NGS) axis, CLI initially increases, peaking around 11.2�N, and then declines. This latitude probably identifies the boundary below which disease challenge constrains traditional livestock production and CLI. This polynomial pattern of CLI is contrary to an expected linear increase along lines of perceived potentials for rain-fed crop production. Household resources, GIS-derived village-level market factors, and institutional factors also significantly affect CLI. Ecological and institutional factors have most impact on the probability of adoption and use intensities of CLI. The incorporation of GIS-derived market factors with household and institutional variables in an econometric model offers new opportunities for assessing patterns of evolution of CLI, comparing results across sites, and targeting recommendation domains objectively. A comparison with results from more common methods of running independent models for individual indicators of CLI shows that this new framework is an effective way of reducing the multiple dimensionality of CLI to gain quicker, well-focused knowledge of the processes of agricultural intensification. Copyright 2006 International Association of Agricultural Economists.
V. M. Manyong; I. Okike; T. O. Williams. Effective dimensionality and factors affecting crop-livestock integration in West African savannas: a combination of principal component analysis and Tobit approaches. Agricultural Economics 2006, 35, 145 -155.
AMA StyleV. M. Manyong, I. Okike, T. O. Williams. Effective dimensionality and factors affecting crop-livestock integration in West African savannas: a combination of principal component analysis and Tobit approaches. Agricultural Economics. 2006; 35 (2):145-155.
Chicago/Turabian StyleV. M. Manyong; I. Okike; T. O. Williams. 2006. "Effective dimensionality and factors affecting crop-livestock integration in West African savannas: a combination of principal component analysis and Tobit approaches." Agricultural Economics 35, no. 2: 145-155.
Sustaining the productive capacity of the land resource under the existing land-use system and increasing population pressure requires the use of appropriate technologies that will enhance farm productivity and income levels. This paper examines the effect on farm profitability of smallholder maize farmers’ use of intensification technologies in tropical agriculture. The survey was conducted in southwest Nigeria. A multi-stage sampling technique was used to select 300 respondents from two major agroclimatic zones in Osun State. Primary data were collected using a structured questionnaire and complemented with focus group discussions (FGDs), while the State’s Ministry of Agriculture provided secondary data. Pressure on land was found high because farmland was continuously cropped for an average of 10 years with a mean fallow period of 2 years only. Technologies used to intensify agriculture included inorganic fertilizer, organic manure, alley cropping, and tree planting. Results from costs and returns analysis showed that average net returns to inorganic fertilizer use ranked highest in the two zones, while tree planting ranked lowest. There was a significant ecoregional difference on the average net returns/year earned by users of mineral fertilizer. While organic manure use earned higher net returns than alley cropping practice in the rain forest, the reverse was the case for the derived savanna. FGDs revealed that respondents’ preferred to use inorganic fertilizer despite its inadequate supply because, apart from enhancing higher returns and net gains, it also improved output level and provided an opportunity for the continuous use of the scarce land. These results imply that economic returns play a critical role in farmers’ use of intensification technologies and consequently affect their resource management decisions. Policy measures aimed at promoting research on appropriate technologies that are profitable on farmers’ fields will be more effective in enhancing farmers’ use of intensification technologies.
A.S. Bamire; V.M. Manyong. Profitability of intensification technologies among smallholder maize farmers in the forest-savanna transition zone of Nigeria. Agriculture, Ecosystems & Environment 2003, 100, 111 -118.
AMA StyleA.S. Bamire, V.M. Manyong. Profitability of intensification technologies among smallholder maize farmers in the forest-savanna transition zone of Nigeria. Agriculture, Ecosystems & Environment. 2003; 100 (2):111-118.
Chicago/Turabian StyleA.S. Bamire; V.M. Manyong. 2003. "Profitability of intensification technologies among smallholder maize farmers in the forest-savanna transition zone of Nigeria." Agriculture, Ecosystems & Environment 100, no. 2: 111-118.