selected publications
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article
- Organic Manure Improves Soybean Response to Rhizobia Inoculant and P-Fertilizer in Northern Ghana 2020
- Combined application of inoculant, phosphorus and organic manure improves grain yield of cowpea. Archives of Agronomy and Soil Science. 66:1358-1372. 2020
- Native Bradyrhizobium Strains From Ghana Can Enhance Grain Yields of Field-Grown Cowpea and Groundnut 2020
- LEGUME–MAIZE ROTATION OR RELAY? OPTIONS FOR ECOLOGICAL INTENSIFICATION OF SMALLHOLDER FARMS IN THE GUINEA SAVANNA OF NORTHERN GHANA. Experimental Agriculture. 55:673-691. 2019
- On-farm evaluation and determination of sources of variability of soybean response to Bradyrhizobium inoculation and phosphorus fertilizer in northern Ghana. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 267:23-32. 2018
- Asssesing the effectiveness and impact of agricultural water management interventions: the case of small reservoirs in northern Ghana. Agricultural Water Management. 209:163-170. 2018
- Is there a need for Bradyrhizobium yuanmingense and B. japonicum reinoculation in subsequent cropping seasons under smallholder farmers’ conditions?. Applied Soil Ecology. 128:54-60. 2018
- Nutrient release dynamics from decomposing organic materials and their mulching-effect on pearl millet yields in a low-input Sahelian cropping system. Nutrient Cycling in Agroecosystems. 112:45-59. 2018
- Bacteria related to Bradyrhizobium yuanmingense from Ghana are effective groundnut micro-symbionts. Applied Soil Ecology. 127:41-50. 2018
- Maize-grain legume intercropping for enhanced resource use efficiency and crop productivity in the Guinea savanna of northern Ghana.. Field Crops Research. 213:38-50. 2017
- N2-fixation and N contribution by grain legumes under different soil fertility status and cropping systems in the Guinea savanna of northern Ghana.. Agriculture, Ecosystems & Environment. 261:201-210. 2017
- Probabilistic quantitative microbial risk assessment model of farmer exposure to Cryptosporidium spp. in irrigation water within Kumasi Metropolis-Ghana. Microbial Risk Analysis. 6:1-8. 2017
- PCR assay for direct specific detection of Bradyrhizobium elite strain BR 3262 in root nodule extracts of soil-grown cowpea. Plant and Soil. 417:535-548. 2017
- Growth and Yield Responses of Cowpea to Inoculation and Phosphorus Fertilization in Different Environments.. Frontiers in Plant Science. 8:646. 2017
- Generation mean analysis of phosphorus‐use efficiency in freely nodulating soybean crosses grown in low‐phosphorus soil. Plant Breeding. 136:139-146. 2017
- Bradyrhizobium Inoculants Enhance Grain Yields of Soybean and Cowpea in Northern Ghana. Frontiers in Plant Science. 7:1770. 2016
- Biological Inoculants for Sustainable Intensification of Agriculture in Sub-Saharan Africa Smallholder Farming Systems 2016
- Fertilizer Microdosing in the Humid Forest Zone of Ghana: An Efficient Strategy for Increasing Maize Yield and Income in Smallholder Farming. Soil Science Society of America Journal. 80:1254-1261. 2016
- Geospatial approach to study the spatial distribution of major soil nutrients in the Northern region of Ghana 2016
- Fertilizer micro-dosing increases crop yield in the Sahelian low-input cropping system: A success with a shadow. Soil Science and Plant Nutrition. 62:277-288. 2016
- Nutrient release patterns of compost and its implication on crop yield under Sahelian conditions of Niger. Nutrient Cycling in Agroecosystems. 105:117-128. 2016
- DETERMINANTS OF FERTILIZER MICRODOSING-INDUCED YIELD INCREMENT OF PEARL MILLET ON AN ACID SANDY SOIL. Experimental Agriculture. 52:562-578. 2016
- Integrated use of fertilizer micro-dosing and Acacia tumida mulching increases millet yield and water use efficiency in Sahelian semi-arid environment. Nutrient Cycling in Agroecosystems. 103:375-388. 2015
- Hill placement of manure and fertilizer micro-dosing improves yield and water use efficiency in the Sahelian low input millet-based cropping system. Field Crops Research. 180:29-36. 2015
- Effect of fertilizer deep placement with urea supergranule on nitrogen use efficiency of irrigated rice in Sourou Valley (Burkina Faso). Nutrient Cycling in Agroecosystems. 102:79-89. 2015
- Response of weeds and soil microorganisms to imazaquin and pendimethalin in cowpea and soybean. Crop Protection. 65:168-172. 2014
- Diversity of arbuscular mycorrhizal fungi in soils of yam (Dioscorea spp.) cropping systems in four agroecologies of Nigeria. Archives of Agronomy and Soil Science. 59:521-531. 2013
- Safe re-use practices in wastewater-irrigated urban vegetable farming in Ghana.. The Journal of Agriculture, Food Systems, and Community Development. 2:147-158. 2012
- Residual Effects of Contrasting Organic Residues on Maize Growth and Phosphorus Accumulation over Four Cropping Cycles in Savanna Soils 2011
- Soil Conservation in Nigeria: Assessment of Past and Present Initiatives 2011
- Effects of Arbuscular Mycorrhizal Inoculation and Phosphorus Application on Yield and Nutrient Uptake of Yam. Communications in Soil Science and Plant Analysis. 41:2729-2743. 2010
- First use of the 137Cs technique in Nigeria for estimating medium-term soil redistribution rates on cultivated farmland.. Soil & Tillage Research. 110:211-220. 2010
- Biological nitrogen fixation potential by soybeans in two low-P soils of southern Cameroon. Nutrient Cycling in Agroecosystems. 88:49-58. 2010
- Integrated soil fertility management involving promiscuous dual-purpose soybean and upland NERICA enhanced rice productivity in the savannas. Nutrient Cycling in Agroecosystems. 88:29-38. 2010
- Use of remote sensing and GIS for improved natural resources management: case study from different agroecological zones of West Africa. International Journal of Remote Sensing. 31:6115-6141. 2010
- Abundance and distribution of arbuscular mycorrhizal fungi species in long-term soil fertility management systems in Northern Nigeria.. International plant nutrition colloquium. 10. 33:1264-1275. 2010
- Soil and Crop Contamination Through Wastewater Irrigation and Options for Risk Reduction in Developing Countries 2010
- Farmers' Adoption of Soil Conservation Technologies: A Case Study from Osun State, Nigeria. The Journal of Agricultural Education and Extension. 15:257-274. 2009
- Grain legume rotation benefits to maize in the northern Guinea savanna of Nigeria: fixed-nitrogen versus other rotation effects. Nutrient Cycling in Agroecosystems. 84:129-139. 2009
- Rotation effects of grain legumes and fallow on maize yield, microbial biomass and chemical properties of an Alfisol in the Nigerian savanna. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 129:325-331. 2009
- Reducing health risks from wastewater use in urban and peri-urban sub-Saharan Africa: applying the 2006 WHO guidelines. Water Science and Technology. 57:1461-1466. 2008
- Effect of low-cost irrigation methods on microbial contamination of lettuce irrigated with untreated wastewater. Tropical Medicine & International Health. 12:15-22. 2007
- Effectiveness of common and improved sanitary washing methods in selected cities of West Africa for the reduction of coliform bacteria and helminth eggs on vegetables.. Tropical Medicine & International Health. 12:40-50. 2007
- Reducing microbial contamination on wastewater-irrigated lettuce by cessation of irrigation before harvesting. Tropical Medicine & International Health. 12:8-14. 2007
- Evaluation of maize yield in an on-farm maize-soybean and maize-Lablab crop rotation systems in the Northern Guinea Savanna of Nigeria.. Pakistan Journal of Biological Sciences. 10:3905-3909. 2007
- Does the enhanced P acquisition by maize following legumes in a rotation result from improved soil P availability. Soil Biology & Biochemistry. 39:2555-2566. 2007
- Irrigated urban vegetable production in Ghana: microbiological contamination in farms and markets and associated consumer risk groups.. Journal of Water and Health. 5:455-466. 2007
- Influence of phosphorus application on growth and yield of soybean genotypes in the tropical savannas of northeast Nigeria. Archives of Agronomy and Soil Science. 53:539-552. 2007
- Aluminum resistance of cowpea as affected by phosphorus-deficiency stress. Journal of Plant Physiology. 164:442-451. 2007
- Evaluation of cowpea genotypes for variations in their contribution of N and P to subsequent maize crop in three agro-ecological zones of West Africa 2007
- Population size, distribution, and symbiotic characteristics of indigenous Bradyrhizobium spp. that nodulate TGx soybean genotypes in Africa. Applied Soil Ecology. 35:57-67. 2007
- Variability of cowpea breeding lines to low phosphorus tolerance and response to external application of Phosphorus 2007
- Genotypic variation for phosphorus uptake dinitrogen fixation in cowpea on low‐phosphorus soils of southern Cameroon. Journal of Plant Nutrition and Soil Science. 169:816-825. 2006
- MINERAL NUTRIENT UPTAKE AND REMOVAL BY COWPEA, SOYBEAN AND MAIZE CULTIVARS IN WEST AFRICA, AND IMPLICATIONS FOR CARBON CYCLE EFFECTS ON SOIL ACIDIFICATION. Experimental Agriculture. 42:475-494. 2006
- Phosphorus benefits from grain-legume crops to subsequent maize grown on acid soils of southern Cameroon. Plant and Soil. 284:385-397. 2006
- Pesticide and pathogen contamination of vegetables in Ghana's urban markets.. Archives of Environmental Contamination and Toxicology. 50:1-6. 2006
- Plant-available P for Maize and Cowpea in P-deficient Soils from the Nigerian Northern Guinea Savanna – Comparison of E- and L-values. Plant and Soil. 283:251-264. 2006
- Irrigated urban vegetable production in Ghana : Sources of pathogen contamination and health risk elimination. Irrigation and Drainage. 54:S49-S61. 2005
- On-farm Evaluation of Biological Nitrogen Fixation Potential and Grain Yield of Lablab and Two Soybean Varieties in the Northern Guinea Savanna of Nigeria. Nutrient Cycling in Agroecosystems. 73:267-275. 2005
- Persistence and effectiveness of rhizobia nodulating promiscuous soybeans in moist savanna zones of Nigeria. Applied Soil Ecology. 3:215-224. 1996