A5026805271- Legume Nitrogen Fixing Symbiosis
- Agronomic Practices and Intercropping Systems
- Child Nutrition and Water Access
- Soil Carbon and Nitrogen Dynamics
- Soybean genetics and cultivation
- Wastewater Treatment and Reuse
- Plant nutrient uptake and metabolism
- Agricultural pest management studies
- Urban Agriculture and Sustainability
- Agriculture and Rural Development Research
- Crop Yield and Soil Fertility
- Agricultural Innovations and Practices
- Food Waste Reduction and Sustainability
- Rice Cultivation and Yield Improvement
- Plant Micronutrient Interactions and Effects
- Nematode management and characterization studies
- Urban and Rural Development Challenges
- Food Security and Health in Diverse Populations
- Mycorrhizal Fungi and Plant Interactions
- Agricultural Science and Fertilization
- Banana Cultivation and Research
- Composting and Vermicomposting Techniques
- Pharmaceutical and Antibiotic Environmental Impacts
- Soil erosion and sediment transport
- Viral gastroenteritis research and epidemiology
Kwame Nkrumah University of Science and Technology
2014-2023
International Institute of Tropical Agriculture
2010-2023
International Institute of Tropical Agriculture
2012-2022
Kwame Nkrumah University
2005-2022
Aarhus University
2022
Tamale Teaching Hospital
2017-2018
International Water Management Institute
2011
Environmental Health
2011
University of Copenhagen
2011
University of Hawaiʻi at Mānoa
1989-2006
Smallholder farmers in the Guinea savanna practise cereal-legume intercropping to mitigate risks of crop failure mono-cropping. The productivity intercrops could be influenced by spatial arrangement and soil fertility status. Knowledge on effect status intercrop is generally lacking despite wide variability farmers' fields, within-row relative distinct-row systems under on-farm conditions has not been studied region. We effects maize-legume patterns resource use efficiency, economic...
Ghana is a typical low-income sub-Saharan African country facing significant sanitation challenges. In Ghana, fresh salads are not part of the normal diet, but have become common supplement to urban fast food served in streets, canteens and restaurants. Accra, about 200 000 people consume from such supplements every day. The figure also describes size risk group contamination, which comprises all income classes including poor children. purpose this study was investigate widespread water...
Cowpea (Vigna unguiculata) is a major source of dietary protein and essential component the cropping systems in semi-arid regions Sub-Saharan Africa. However, yields are very low due to lack improved cultivars, poor management practices, limited inputs use. The objectives this study were assess effects rhizobia inoculant P on nodulation, N accumulation yield two cowpea cultivars Mozambique. Field was conducted three contrasting environments during 2013/2014 2014/2015 seasons using randomized...
This study evaluated the symbiotic effectiveness and economic evaluation of Rhizobium inoculants with objective recommending most effective inoculant strain for soybean cowpea production in Northern Ghana. Field experiments were established three locations using randomized complete block design five blocks. A total four treatments (Legumefix, Biofix, 100 kg N ha-1 uninoculated control BR 3267, 3262, cowpea) applied. At Nyankpala, inoculation Legumefix Biofix led to significant (P < 0.05)...
Continuous cereal-based cropping has led to a rapid decline in soil fertility the Guinea savanna agro-ecological zone of northern Ghana with corresponding low crop yields. We evaluated effects system and status on grain yields N2-fixation by legumes net N contribution improvement contrasting sites this zone. Maize was intercropped cowpea, soybean groundnut within row, maize stand alternated two equally spaced cowpea or stands maize-soybean system, four stands. These intercrops were compared...
Empirical evidence on the opportunities and barriers to uptake of climate services by smallholder farmers for resilient agricultural systems in sub-Saharan Africa is limited. This paper addresses this important gap evaluating information (from short-term weather forecasts, through seasonal forecasts longer-term change decadal timescales) Sudan savannah agro-ecological zone Ghana. The answers following research questions: i) what kinds are available accessible management decision-making? ii)...
Microbiological water and crop contamination was monitored on urban vegetable farms in Ghana. Faecal coliform helminth egg levels of irrigation from drains, streams shallow wells significantly exceeded WHO recommendations for unrestricted irrigation. High faecal exceeding common guidelines food quality were also recorded lettuce irrespective the source, with lower concentrations irrigated piped than well or stream water. Higher observed rainy season spite frequencies, compared to dry season....
To analyse and improve the effectiveness of common indigenous washing methods for reduction faecal coliform (FC) populations on surface wastewater-irrigated vegetables to determine simple factors affecting their efficacy.Questionnaire interviews were used gather information in seven West African countries. The efficacy most decontamination was measured terms log reductions FC homogenised contaminated lettuce, cabbage spring onion samples.The large majority urban households restaurants...
Millions of small-scale farmers around the world irrigate with marginal-quality water, often because they have no alternative. There are two major types water: wastewater from urban and peri-urban areas, saline sodic agricultural drainage water and groundwater. Around cities in developing countries, use wastewater from residential, commercial, industrial sources, sometimes diluted but without treatment. Sometimes farmers deltaic areas tailend sections large-scale irrigation schemes...
Where rapid urbanization is outpacing urban capacities to provide sound sanitation and wastewater treatment, most water sources in city vicinity are heavily polluted. This of great concern as many the leafy vegetables eaten raw cities produced these areas. Following new WHO guidelines, different non-treatment options at farm, market, kitchen level were field tested for health risk reduction with special consideration efficiency adoption potential. As households used vegetable washing...
Wastewater irrigation is associated with several benefits but can also lead to significant health risks. The risk for contracting infections from Soil Transmitted Helminths (STHs) among farmers has mainly been assessed indirectly through measured quantities in the wastewater or on crops alone and only a limited scale epidemiological assessments. In this study we broadened concept of infection risks exposure assessments by measurements concentration STHs both used soil, as well actual load...
Whilst the capability of climate services to reduce impacts is alluring, empirical evidence on how best mainstream information in Africa lacking. This paper determines have been incorporated into national policies by Anglophone West African states for building agricultural resilience and provides a detailed analysis issues facing Ghanaian systems. The addresses questions: (i) what extent change recognised as threat development states? (ii) regional policy frameworks resilient systems? (iii)...
Summary Objective To assess the effectiveness of cessation irrigation before harvesting in reducing microbial contamination lettuce irrigated with wastewater urban vegetable farming Ghana. Methods Assessment was done under actual field conditions farmers Trials were arranged completely randomized block design and both dry wet seasons. Seven hundred twenty‐six samples 36 water analysed for thermotolerant coliforms helminth eggs. Results On average, 0.65 log units indicator 0.4 eggs per 100 g...
To identify interventions which reduce health risks of consumers where highly polluted irrigation water is used to irrigate vegetables in West Africa, scientists worked over 5 years with farmers, market traders and street food vendors Ghana. The most promising low-cost high adoption potential were analyzed for their ability common levels pathogens (counts fecal coliforms helminth eggs). analysis showed the combination various interventions, especially on-farm during vegetable washing line...