219 research outputs found

    Scavenging for wealth or death? Exploring the health risk associated with waste scavenging in Kumasi, Ghana

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    By sheer dint of necessity, the urban poor in Ghana have invented an endless series of survival strategies to endure the high rate of  unemployment and widespread poverty by engaging in occupations such as waste scavenging. Whilst literature is replete with evidence of the economic significance of this livelihood activity, there is scanty empirical work on its health implications. This study examines the health implications associated with the occupation, using scavengers in Kumasi as a case study. The research is based on data collected through 10 key informant interviews with stakeholders in waste management and 30 personal interviews with waste scavengers drawn equally from the three largest solid waste dumpsites in the metropolis. The study reveals how scavengers are exposed daily to a myriad life threatening health problems as they sift for recyclable products. The paper concedes that given the economic implication of the enterprise, it is important that they benefit from  intervention programs that can reduce the adverse health outcomes associated with their job.Key words: scavenging; waste; livelihood activity; wealth; healt

    Micronutrients use efficiency and dry matter yield of annual crops as affected by inorganic and organic amendments

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    Sustainable crop production is increasing, owing to environmental concerns over the intensive use of chemical fertilizers. This study investigated the effects of equal N substitution by pig slurry compost on micronutrients use efficiency and dry matter yield of Vicia faba L., Lupinus albus L. and Triticum aestivum L. Plants were grown in pots with sandy-loam soil and quartz (silica) sand under controlled greenhouse conditions. The treatments were (a) no fertilization (control), (b) NPK fertilizer, (c) pig slurry compost with 50% NPK (PSC), (d) quartz sand with pig slurry compost and 50% NPK (Quartz-PSC) applied at the same rate of 200mg N kg1 soil. Inorganic N (NPK) and PSC applications increased seed yield about 10-32%, shoot and root dry matter, on average, by 36% and 21% respectively in mature plants. Micronutrients uptake and use efficiencies were generally lower in PSC- plants than in NPK-plants. Results also showed increased seed Fe (3-28%), Zn (10-26%) and Cu (6-31%) concentrations in NPK and PSC-treated plants. Also, NPK (enriched with Se) significantly elevated seed Se concentration and use efficiency (SeUE) in all plants. Interestingly, PSC addition increased, although not significant, seed Se concentration and SeUE in faba bean and wheat. But no such effect was observed in white lupin. Overall, the results suggest that substitution of half-dose of NPK fertilizer with pig slurry compost is a promising alternative of chemical fertilizer for improved biomass yield and seed micronutrients (Zn, Fe and Cu) concentration in sustainable intensifications.Peer reviewe

    In the midst of the COVID-19 pandemic: Perceived risks, management strategies and emerging opportunities for small and medium agri-food enterprises in a developing country

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    The Covid-19 pandemic has posed unprecedented challenges to small- and medium-sized agri- food enterprises (SMAEs) in developing countries. However, research investigating what risks Covid-19 posed to these firms, how they responded, and what business opportunities emerged to SMAEs from the pandemic remains scanty. Drawing on a sample of 166 specialist SMAEs in Egypt, this study addressed these entwined questions by using multiple indicators and multiple causes (MIMIC) and mediation analysis. Our results point out that the Covid-19 pandemic ex- posed Egyptian SMAEs to complex and multidimensional risks, and caused profound effects on both upstream and downstream stages of their supply chains. In general, Egyptian SMAEs adopted a 'wait -and -see' approach to cope with such Covid-19 risks and impacts, which was at- tributed to their lack of sufficient financial resources to develop risk management strategies and formalize structures to deal with unexpected events. Interestingly, the results showed that several business opportunities emerged from pandemic; but SMAEs' resource disadvantages constrained their capacity to seize and exploit these opportunities. Moreover, we found that mitigation strate- gies adopted by SMAEs present a mediating factor between perceived Covid-19 risks and per- ceived business opportunities. Overall, our findings call for a paradigm shift in relation to enter- prise risk management in developing countries' SMAEs toward more holistic frameworks to en- hance their preparedness to future shocks, make mature operational and strategic management decisions, and exploit strategic opportunities

    The Development and Promotion of Sweet Potato Yoghurt in Ghana: Implications for Sustainable Production and Consumption Policies

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    This paper analyzes how a newly developed food product (potagurt) with nutritional and health benefits can be promoted in Ghana. We employ the hedonic modeling and contingent valuation methods to estimate monetary values attached to the product's attributes using 400 consumers in the Ashanti, Eastern, and Greater Accra regions of Ghana. The findings reveal that consumers have positive perceptions on the health and nutritional benefits of the product. Buyers place a higher value on potagurt relative to normal yogurt. The high value attached to potagurt is mainly linked to the health, nutritional, food safety, and quality attributes of the product, as well as perception. Consumers' socioeconomic factors such as income, educational, and awareness levels also play a significant role in explaining their choice of the product. The practical implication is that the development and promotion of potagurt could stimulate sustainable economic development through better consumer health and improvement in the livelihoods of many players in the sweet potato value chain, especially the producers of potagurt and sweet potato farmers. We conclude that the promotion of the innovative food product could contribute to sustainable production and consumption of sweet potatoes

    Effect of Deficit Irrigation on Growth and Yield of Okro (Abelmoscus Esculentus)

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    The study was conducted to determine the effect of deficit irrigation on the growth and yield of the Dwarf Green Long Pod variety of okro (Abelmoschus esculentus). The location of the study was the School of Agriculture Research and Teaching farm of the University of Cape Coast,Cape Coast. Experimental design adopted for the study was the Randomised Complete Block Design and there were four (4) treatments which were replicated three times. Treatments one, two, three and four were the application of 100%, 80%, 70% and 60% of the amount of waterlost through evapotranspiration respectively. A daily irrigation water application was used. The study was conducted throughout the four growth stages of okro. The leaf area, number of pods per plant, pod weight, pod length and pod circumference were all measured at the various growth stages. Soil samples from the various treatment plots were analysed before and after 60 days of planting to determine the amount of nitrogen, phosphorus and potassium (N, P, and K). Similarly, moisture contents were determined before planting, at the developmental and mid stage of growth. It was observed that treatment two which was the 80% application of ETc performed better than the others. It was also observed that the 60% application of ETC gave the poorest results. It can be concluded that irrigating with 80% of estimated water requirement, is the best application for okro.Keywords: Deficit irrigation, okro, water, yield, evapotranspiratio

    Remittances and the Dutch disease in Sub-Saharan Africa. A Dynamic Panel Approach

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    This paper investigates the effect of remittance inflows on the real exchange rate in Sub-Saharan Africa (SSA) using annual data from 1980 to 2008 for 34 SSA countries, generalised method of moments by Arellano and Bover (1995) andfeasible generalised least squares by Parks (1967) and Kmenta (1971, 1986). We find that when cross-sectional dependence and individual effects are controlled for, remittances to SSA as a whole appreciate the underlying real exchange rate ofrecipient countries. However the Dutch-disease effect is not experienced via the loss of export competitiveness, because the exchange rate appreciation is mitigated by monetary policy positioning and overdependence on imports due to low levels of domestic production in these countries. We also find reverse causality between remittances and the real exchange rate.Dutch disease, remittances, real exchange rate, Sub-Saharan Africa

    Challenges of Privatizing Waste Management in the in Wa Municipality Of Ghana: A Case of Zoomlion Ghana Limited

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    In the past, management of waste in the Wa municipality in particular and Ghana in general was the soleresponsibility of District, Municipal and Metropolitan Assemblies. As a result of inefficiency in management ofwaste by District, Municipal, and Metropolitan Assemblies, a private company known as zoomlion GhanaLimited was contracted to shoulder waste management in the entire country. This paper sought to examinechallenges in privatizing waste management in the Wa municipality of Ghana. Documented evidence reveals thatthe Integrated Solid Waste Management model has become the most preferred model for managing solid wastein urban centers of developing countries, it has not been adopted in the management of waste in the Wamunicipality by Zoomlion Ghana Limited due to financial and logistical constraints. Also Zoomlion GhanaLimited lacks the technical know how to effectively manage the waste generated. It is recommended that there isthe need for an introduction of incentive schemes such as subsidies, concessional loans and tax incentives toencourage investment in acquisition of equipment, research, training and project demonstration by the privatesector.Keywords: Challenges, Privatizing, Waste, Managemen
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