Publications
Samuel Owusu Yeboah, Latif Iddrisu Nasare & Akwasi Adutwum Abunyewa. 2022. Effect of landuse on floristic composition and diversity of medicinal plants in the Guinea Savanna zone of Ghana. Heliyon. DOI: 10.1016/j.heliyon.2022.e10203
Samuel Owusu Yeboah, Isaac K. Amponsah, James S. Kaba & Akwasi A. Abunyewa. 2022. Variability of soil physicochemical properties under different land use types in the Guinea savanna zone of northern Ghana, Cogent Food & Agriculture, 8:1, 2105906, DOI: 10.1080/23311932.2022.2105906 To link to this article: https://doi.org/10.1080/23311932.2022.2105906
Samuel Owusu Yeboah, Isaac K. Amponsah, James S. Kaba & Akwasi A. Abunyewa 2022. Abundance, richness, and use of medicinal plants under different land uses in the Guinea Savanna Zone of Northern Ghana, All Earth. DOI: 10.1080/27669645.2022.2105485
James S. Kaba, Alberta Y. Asare, Henrietta Andoh, Godswill K.S Kwashie, and Akwasi A. Abunyewa. 2022. Toward Sustainable Cocoa (Theobroma Cacao L) Production: The Role of Potassium Fertilizer in Cocoa Seedlings Drought Recovery and Survival. INTERNATIONAL JOURNAL OF FRUIT SCIENCE2022, VOL. 22, NO. 1, 618-627 https://doi.org/10.1080/15538362.2022.2092932
Konadu Jennifer Ama Saah, James S. Kaba, Akwasi A. Abunyewa. 2022. Inorganic nitrogen fertilizer, biochar particle size and rate of application on lettuce (Lactuca sativa L.) nitrogen use and yield. https://orcid.org/0000-0001-6432-3464. ALL LIFE, VOL. 15, NO. 1, 624–63
Najat Osman, John Tennyson Afele, Eunice Nimo, David Ofoe Gorleku, Louisa Adomaa Ofori, and Akwasi Adutwum Abunyewa. 2022. Assessing the Impact of Illegal Small-Scale Mining (Galamsey) on Cocoa Farming and Farmer Livelihood: A Case Study in the Amansie West District of Ghana. Pelita Perkebunan 38(1) 2022, 70—82. DOI: 10.22302/iccri.jur.pelitaperkebunan.v38i1.496
David Ofoe GORLEKU, Gloria Pearl Ami BADU, John Tennyson AFELE, James Seutra KABA, Akwasi Adutwum ABUNYEWA. 2022. ASSESSING THE EFFICIENCY OF MORINGA OLEIFERA LEAF MEAL ON THE GROWTH PERFORMANCE OF BROILER CHICKEN. Journal of Applied Life Sciences and Environment Vol. LIV, Issue 4 (188)/2021: 370-376. https://doi.org/10.46909/journalalse-2021-032. Available online: https://jurnalalse.com
Stephen Edem Akpalu, Luke Anglaaere, Lawrence Damnyag, Evans Kwasi Dawoe, Akwasi Adutwum Abunyewa, Mercy Marilyn Akpalu. 2022. Floristic composition of agroforestry parklands in the semi-arid zone of Ghana: A special focus on Faidherbia albida (Delile) A. Chev. Available at SSRN: https://ssrn.com/abstract=4059283 or http://dx.doi.org/10.2139/ssrn.4059283
Tetteh E. N, Nunoo I., Fromm I., Abunyewa A.,Tuffuor H.,Twum-Ampofo K., Berchie J.N., Logah V., Yeboah S., Melenya C., Partey S. T and Barnes V. 2022. Economic Analysis of Rubber Agroforestry Systems in Ghana. Available from: https://www.researchgate.net/publication/359062016_Economic_Analysis_of_Rubber_Agroforestry_Systems_in_Ghana
John Tennyson Afele, Evans Dawoe, Akwasi Adutwum Abunyewa, Victor Afari-Sefa, and Richard Asare. 2021. Carbon Storage in Cocoa Growing Systems Across Different Agroecological Zones in Ghana. Pelita Perkebunan 37 (1), 32—49 DOI: 10.22302/iccri.jur.pelitaperkebunan.v37i1.395
James S. Kaba, Alexander Out-Nyanteh, Akwasi A. Abunyewa. 2020. The role of shade trees in influencing farmers’ adoption of cocoa agroforestry systems: The insights from semi-deciduous rain forest agroecological zone of Ghana. NJAS-Wageningen Journal of Life Sciences. NJAS-Wageningen Journal of Life Sciences. 9 2(2020) 100332. https://doi.org/10.1016/j.njas.2020.100332
Kwame Ochere Boadu, Akwasi A. Abunyewa, James Seutra Kaba, Kwame Twum Ampofo, Evans K. Dawoe, Olivia Agbenyega & Rex V. Barnes. 2020. Improved legume fallows Influence on nitrogen and microbial dynamics and maize Zea mays L grain yield in sub humid zone of West Africa. Cogent Food & Agriculture, 6:1, 1785778. https://doi.org/10.1080/23311932.2020.1785778
Akpalu Stephen Edem, Dawoe Evans Kwasi and Abunyewa, Akwasi Adutwum. 2020. Effect of Ferdherbia albida on some important soil fertility indicators on agroforestry parklands in the Semi-arid zone of Ghana. African Journal of Agricultural Research. 15 (2): 256 – 268. DOI: 10.5897/AJAR2019.14617
Neya,T., Abunyewa, A. A., Neya, O., Zoungrana, B, J-B., Dimobe, K., Tiendrebeogo, H., Magistro, J. 2020. Carbon Sequestration Potential and Marketable Carbon Value of Smallholder Agroforestry Parklands Across Climatic Zones of Burkina Faso: Current Status and Way Forward for REDD+ Implementation. Environmental Management. https://doi.org/10.1007/s00267-019-01248-6
Oble Neya, Tiga Neya, Akwasi A. Abunyewa, Benewinde, J.-B. Zoungrana, Hypolite Tiendrebeogo, Kangbeni Dimobe, Joel Awuohidia Korahire. 2020. Land use land cover dynamics and farmland intensity analysis at Ouahigouya Municipality, Baukina Faso. American Journal of Climate Change, 9: 23 – 33. https://doi.org/10.423/ajcc.2020.91003
Eunice Badu, James S. Kaba, Akwasi A. Abunyewa, Evans K. Dawoe, O. Agbenyega and Rex V. Barnes. 2019. Biochar and inorganic nitrogen fertilizer effects on maize (Zea mays L.) nitrogen use and yield in moist semi-deciduous forest zone of Ghana. Journal of Plant Nutrition, DOI: 10.1080/01904167.2019.1659347
Tetteh, E. N., Abunyewa, A. A., Tuffour, H. O., Berchie, J. N., Acheampong, P. P., Twum-Ampofo, K. 2019. Rubber and plantain intercropping: Effects of different planting densities on soil characteristics. PLoS ONE 14(1): e0209260. https://doi.org/10.1371/journal.pone.0209260
James Seutra Kaba, and Akwasi A. Abunyewa. 2019. New aboveground biomass and nitrogen yield in different ages of gliricidia (Gliricidia sepium Jacq.) trees under different pruning intensities in moist semi-deciduous forest zone of Ghana. Agroforestry Systems. https://doi.org/10.1007/s10457-019-00414-3
NEYA, Tiga, ABUNYEWA, A. A. NEYA, Oblé, Daniel Callo-Concha. 2019. Trade-off of Tree Conservation and Crop Production on Agroforestry Parklands in Burkina Faso. Journal of Agricultural Studies. doi:10.5296/jas.v7i1. 14270
Kaba, J.S., S Zerbe, A.A Abunyewa and M Tagliavini (2019). Tracing the nitrogen flow between Gliricidia and cocoa trees in intercropping system using the 15N natural. Acta Hortic. 1242. ISHS 2019. DOI 10.17660/ActaHortic.2019.1242.86 Proc. III Int. Symp. on Horticulture in Europe – SHE2016 Eds.: P. Kalaitzis et al. Acta Horticulturae
Stephen Edem Akpalu, Evans Lawrence Dawoe and Akwasi Adutwum Abunyewa. 2019. Effects of boiled water pre-sowing treatment on the germination and early performance of Faidherbia albida in three ecological zones of Ghana. Asian Journal of Research in Agriculture and Forestry. 4 (3): 1 – 17. DOI: 10.9734/AJRAF/2019/v4i330065
Tetteh, E. N., K. Twum Ampofo, Abunyewa, A., Acheampong, P. P., Nunoo I., Berchie, J. N., Dzomeku, B. M., Adjei, A. E., Frimpong, F., Logah, V and Melenya C. 2019. A logistics analysis of factors and perceptions of smallholder rubber farmer to intercrop: A case study involving rubber/plantain intercropping system in Ghana. Agriculture and Food Science Journal of Ghana. 12: 1023 - 1035
Osei?Tutu , G., Abunyewa, A. A., Dawoe, E. K., Agbenyega, O., Barnes, V. R. 2018. Effect of multipurpose trees and shrubs on degraded mined? out soil in a semi?deciduous forest zone of West Africa. Land Degrad Dev. DOI: 10.1002/ldr.3110
NEYA, T., NEYA, O., ABUNYEWA, A. A. 2018. Agroforestry parkland profiles in three climatic zones of Burkina Faso. Int. J. Biol. Chem. Sci. 12(5): 2119-2131. Available online at http://www.ifgdg.org
Kaba, J. S., Zerbe, S., Agnolucci, M., Scandellari, F., Abunyewa, A. A. Giovannetti, M., Tagliavini, M. 2018. Atmospheric nitrogen fixation by gliricidia trees (Gliricidia sepium (Jacq.) Kunth ex Walp.) intercropped with cocoa (Theobroma cacao L.). Plant Soil https://doi.org/10.1007/s11104-018-3897-x
Kaba, J.S., Zerbe, S., Zanotelli, D., Abunyewa, A.A., Tagliavini, M. 2018. Uptake of nitrogen by cocoa (Theobroma cocoa L.) trees derived from soil decomposition of gliricidia ( Gliricidia sepium Jacq.) shoot. Acta Hortic. 1217. ISHS 2018. DOI 10.17660/ActaHortic.2018.1217.33 Proc. VIII International Symposium on Mineral Nutrition of Fruit Crops Eds.: T. Mimmo, Y. Pii and F. Scandellari
Abukari, A., Abunyewa, A.A., Issifu, H. 2018. Effect of rice husk biochar on nitrogen uptake and grain yield of maize in the Guinea Savanna zone of Ghana. UDS International Journal of Development. 5 (2): 2026-5336
Imoro, A.W.M., Barnes, V.R., Abunyewa, A.A. 2017. Effects of different aggregates of Baobab (Adansonia digitata L.) trees on soil in a Savanna zone of Ghana. Canadian Journal of Pure and Applied Sciences Vol. 11, No. 3, pp. 4291-4298
Akwasi A. Abunyewa, Richard B. Ferguson, Charles S. Wortmann and Stephen C Mason. 2016. Grain sorghum leaf reflectance and nitrogen status. African J. Agric. Res. 11 (10): 825-836.
Agyarko, K., Abunyewa, A. A., Asiedu, E. K., Heva, E. 2016. Dissolution of rock phosphate in animal manure soil amendment and lettuce growth. Eurasian J Soil Sci. 5 (2): 84 - 88.
Abunyewa, A. A., K. Agyarko and E. K. Asiedu. 2015. Effect of Reforestation on degraded soils in the moist semi deciduous zone of West Africa. Journal of Science and Technology. 35 (1): 1-9
Asiedu, E. K., Ampadu, B., Bonsu, M., Abunyewa, A. A. 2013. Hydrological and Physical Changes of Soils Under Cocoa Plantations of Different Ages During the Dry Season in the Transition Zone of Ghana. J. Natural Sci. Res. 3 (7): 52 - 58.
Abunyewa, A. A., Ferguson, R. B., Wortmann, C. S., Lyon, D. J., Mason, S. C., Irmak, S. and Klein, R. N. 2011. Grain sorghum water use with skip-row configuration in the Central Great Plains of the USA. African J. Agric. Res. 6(23) 5328-5338
Abunyewa, A. A., Ferguson, R B., Wortmann, C. S., Lyon, D. J., Mason, S. C. and Klein, R. N. 2010. Skip-Row and Plant Population Effects on Sorghum Grain Yield. Agron J. 102:296-302.
Abunyewa, A. A., Osei, C., Asiedu, E. K. and Safo, E. Y. 2007. Integrated manure and fertilizer use, maize production and sustainable soil fertility in sub-humid zone of West Africa. Journal of Agronomy 6: 302-309
Edward Yeboah, Gideon Asamoaha, Boafo Kofi and Akwasi Adutwum Abunyewa. 2016. Effect of biochar type and rate of application on maize yield indices and water use efficiency on an Ultisol in Ghana. Energy Procedia 93: 14 – 18
Akwasi A. Abunyewa, Richard B. Ferguson, Charles S. Wortmann and Stephen C Mason. 2016. Grain sorghum leaf reflectance and nitrogen status. African J. Agric. Res. 11 (10): 825-836.
Agyarko, K., Abunyewa, A. A., Asiedu, E. K., Heva, E. 2016. Dissolution of rock phosphate in animal manure soil amendment and lettuce growth. Eurasian J Soil Sci. 5 (2): 84 - 88.
Abunyewa, A. A., K. Agyarko and E. K. Asiedu. 2015. Effect of Reforestation on degraded soils in the moist semi deciduous zone of West Africa. Journal of Science and Technology. 35 (1): 1-9
Asiedu, E. K., Ampadu, B., Bonsu, M., Abunyewa, A. A. 2013. Hydrological and Physical Changes of Soils Under Cocoa Plantations of Different Ages During the Dry Season in the Transition Zone of Ghana. J. Natural Sci. Res. 3 (7): 52 - 58.
Abunyewa, A. A., Ferguson, R. B., Wortmann, C. S., Lyon, D. J., Mason, S. C., Irmak, S.
and Klein, R. N. 2011. Grain sorghum water use with skip-row configuration in the Central Great Plains of the USA. African J. Agric. Res. 6(23) 5328-5338
Abunyewa, A. A., Ferguson, R B., Wortmann, C. S., Lyon, D. J., Mason, S. C. and Klein, N. 2010. Skip-Row and Plant Population Effects on Sorghum Grain Yield. Agron J. 102:296-302.
Ragassa, T. H., Koelsch, R. K., Wortmann, C. S., Randle, R. F., Abunyewa, A. A. 2009. Antibiotic use in Animal Production: Environmental Concerns. University of Nebraska-Lincoln RP 196. Heartland Regional Water Coordination Initiative: Page 1 – 9.
Abunyewa, A. A., Osei, C., Asiedu, E. K. and Safo, E. Y. 2007. Integrated manure and fertilizer use, maize production and sustainable soil fertility in sub-humid zone of West Africa. Journal of Agronomy 6: 302-309
Abunyewa, A. A., and Karbo, N. 2005. Improved fallow with Pigeon pea for soil fertility improvement and increase maize production in a smallholder crop-livestock farming system in the sub-humid zone of Ghana. Land Degradradation and Development 16: 447–454
Anane Sakyi, C., Abunyewa, A. A., Nyamekye, A. L and Safo, E. Y. 2005. Integrated Nutrient management: preliminary results from a 2-year field trial using cowdung, mineral fertilizer and maize test crop in the interior savanna zone of Ghana. Ghana Journal of Agricultural Science No. 1, 2005: 161:164
Asiedu, E. K., Tufuor, J. K, Abunyewa, A. A., and Dawuda, M. M. 2006. Agronomic performance of four varieties of tomato on the Chromic Luvisol of Ghana. Ghana Journal of Horticulture 5:17 – 21.
Asiedu, E. K., Borketey-La, E. B., Abunyewa, A. A., and Dawuda, M. M. 2005. Effect of different rooting media on sprouting and shoot establishment of Ixora duffi. Ghana Journal of Horticulture 5: 99 – 104.
Abunyewa, A., Asiedu, E. K. and Ahenkorah, Y. 2004. Fertilizer Phosphorus Fractionation and their availability to maize on different landforms in a Vertisol in the Coastal Savanna Zone of Ghana. West African Journal of Applied Ecology. 5, 63 - 73.
Abunyewa, A. A., Nyamekye, A. L. Asiedu, E. K. and Cobbinah, J. 2004. Alley cropping Gliricidia with maize: 1. The effect of alley width and pruning height and Phosphorus application rate on grain yield in the Guinea savanna zone of Ghana. Journal of Biological Sciences 4 (2): 81 - 86
Abunyewa, A. A. and Quarshie, H. M. 2004. Response of Maize to Magnesium and Zinc application in the Semi arid zone of West Africa. Asian Journal of Plant Sciences 3 (1): 1 -5.
Abunyewa, A. A. and Padi, F. K. 2003. Changes in soil fertility and Striga hermonthica prevalence associated with legume and cereal cultivation in the Sudan savanna zone of Ghana. Land Degradation and Development Volume 14: 335 - 343.
Edited Conference Papers
Abunyewa, A., Ferguson, R., Wortmann, C., Lyon, D. and Mason, S. 2008. Sorghum grain yield and yield component under different skip-row configuration and plant population density in Nebraska. Great Plains Soil Fertility Conference proceedings. Vol. 12. Denver, Colorado. March 4 – 5, 2008
Abunyewa, A., Ferguson, R., Wortmann, C., Lyon, D., Mason, S. and Tarkalson, D. Skip-row configuration and plant population density effects on sorghum grain yield and yield component in southern Nebraska. North Central Extension Industry Soil Fertility Conference. Nov. 14 – 15, 2007. Vol. 27 Des Moines, Iowa
Abunyewa, A. A., Nyamekye, A. L., Anane-Sakyi, C. and Safo, E. Y. 2001. Application of organic and inorganic manure for sustainable crop production in Guinea savannah zone of Ghana. 2001. Paper presented at International Conference on sustaining soil resources in the tropics for agricultural productivity. 26 February to 2nd March, 2001.
Asiedu, E. K., Abunyewa, A. A. and Nyalemegbe, K. 2001. Vertisol management for Ghana’s Agriculture: Constraints, Interventions and Challenges. 2001. Paper presented at International Conference on sustaining soil resources in the tropics for agricultural productivity. 26 February to 2nd March, 2001.
Conference Papers/Poster Presentation
Abunyewa, A., Wortmann, C., Ferguson, R., Mason, S., Lyon, D. and Tarkalson, D. Water Use Efficiency in Dryland Grain Sorghum Production with Skip row Configuration in Southern Nebraska. Poster Presented at USDA-CSREES National Water Conference. Feb 3-7, 2008. John Ascuaga's Nugget Hotel Resort, Sparks, Nevada, USA.
Abunyewa, A., Ferguson, R., Wortmann, C., Mason, S., Lyon, D. and Tarkalson, D. Skip-row configuration and plant population density effects on sorghum grain yield and yield component in southern Nebraska. Poster Presented at ASA-CSSA-SSSA. November 4 – 8, 2007. New Orleans, USA.
Abunyewa, A., Ferguson, R., Mason, S., Wortmann, C., Lyon, D. and Tarkalson, D. Skip-Row Configuration and Plant Density for Rainfed Grain Sorghum in Nebraska. Poster Presented at ASA-CSSA-SSSA 2006 International Meetings. (November 12-16, 2006) Indianapolis, Indiana
Atokple, I.D.K., A.A. Abunyewa, E.M. Young, A. Mottram, P. Terbobri and C.N. Kasei. Transplanting Sorghum and Millet: Food Security for Resource-poor People in Semi-Arid, Low Rainfall Areas. Abstract of poster presented at Consultation workshop on Millet and Sorghum-based Systems in West Africa held in Niamey, Niger on 27-30 January 2004.
Atokple, I.D.K., A.A. Abunyewa, E.M. Young, A. Mottram, P. Terbobri. 2004. Reducing the menace of drought and Striga through sorghum and millet transplanting: A case study in Ghana. Abstract of poster presented at Consultation Workshop on Millet and Sorghum-based Systems in West Africa held in Niamey, Niger on 27- 30 January 2004.
Abunyewa, A. A. and Fosu, M. 2001. Enhancing food security: The potential of organic residue management and application in the savanna zone of northern Ghana. Paper presented at International Conference on sustaining soil resources in the tropics for agricultural productivity. 2001.
Nyamekye, A. L. and Abunyewa, A. A. 1997.The role of organic and inorganic fertilization on maize production in the northern savanna zone of Ghana. Paper presented at West and Central Africa Regional Maize Workshop in Cotonou,
Benin. 1997
Abstracts
Abunyewa, A. A., Asante, W. J. and Osei P. 2003. Release of mineral nitrogen from Leaves, Twigs and Roots of some agroforestry trees in the semi arid zone of Ghana. Paper presented at Ghana Science Association Conference. August 2 – 5, Kumasi.
Abunyewa, A. A. and Djablatey, D. 2003. Response of rainfed lowland rice to nitrogen, phosphorus and potassium application in the Guinea savanna zone of Ghana. Extended abstract accepted for presentation at International Conference organized by Soil Science Society of Ghana. July 27th to August 2, 2003. GIMPA, Accra.
Abunyewa, A. A., Nyamekye, A. L. and Cobbinah, J. 1998. Determination of appropriate alley width and pruning height of leguminous tree for improved and sustainable soil fertility. Paper presented at first Biennial National Agricultural Research System Workshop. Accra International Conference Centre. 16th – 20th November Accra, Ghana
Abunyewa, A. A., Nyamekye, A. L., Anane-Sakyi, C. and Safo, E. Y. 1998. Organic and inorganic manure management for sustainable crop production in Guinea savannah zone. Paper presented at first Biennial National Agricultural Research System Workshop. Accra International Conference Centre. 16th – 20th November Accra, Ghana
Anane-Sakyi, C., Abunyewa, A. A., Nyamekye, A. L.and Safo, E. Y. 1998. Effect of cowdung and mineral fertilizer on soil fertility improvement in the interior zone of Ghana. Paper presented at first Biennial National Agricultural Research System Workshop. Accra International Conference Centre. 16th – 20th November Accra, Ghana
Technical Reports
Djablatey, D., Abunyewa, A. A., Agyare, W. and Dogbe, W. 2003. On-Farm Adaptive Research for Lowland Development Project. Final Technical Report. SARI-Nyankpala. June 2003.
Young, E. M., Mottram, A., Abunyewa, A. A, Atokple, I. D. K., Terbobri, P. and Kasei, N. 2003. Technical Guide to Transplanting sorghum and pearl millet. Advice for AEAs introducing the technique to new areas. SARI-Nyankpala. February 2003.
Young, E. M., Mottram, A., Abunyewa, A. A, Atokple, I. D. K., Terbobri, P. and Kasei, N. 2003. Transplanting sorghum and millet as a means of increasing food security in Upper East Region of Ghana. Project Summary-Ghana. February Can be located at www.bangor.ac.uk/transplanting/ghanafinalupdat.pdf
Frey, E., Alhassan, A. Y., Abunyewa, A. A. and Wahaga, E. 2003. Fertilization of Cocoa in the Asunafo District of the Brong Ahafo region, Ghana-A result of On-Farm trials, 2000-2002. A Technical report submitted to GTZ/MoFA, Sedentary Farming Systems Project (SFSP), Sunyani.
Karbo, N., Clottey, V., Bruce, J., Addo-Kwafo, A., Kombiok, J., Alebekiya, M., Faalong, J., Lawson, I., Honya, G., Abunyewa, A., Aligebam, B. 2003. Intensification of Integrated Crop-Livestock Systems in the Dry Savannahs of West Africa. Collaborative Research between ILRI-IITA-ICRISAT and the NARES. Characterization of Ghana locations: Tolon-Kunbugu and Bawku-East Districts in Northern Ghana. Report Submitted to DANIDA. July, 2003.
Djablatey, D., Abunyewa, A. A. 2002. On-Farm Adaptive Research for Lowland Development Project. Technical Report. SARI-Nyankpala. February 2002.
Djablatey, D., Abunyewa, A. A. 2001. On-Farm Adaptive Research for Lowland Development Project. Technical Report. SARI-Nyankpala. March 2001.
Djablatey, D., Abunyewa, A. A. 2001. Integrated soil fertility management for sustainable rice production in the northern savanna zone of Ghana. Technical Report submitted to the ROCA_RIZ Natural Resource Management Task Force. SARI 2001
Abunyewa, A. A. 1999. Combating the menace of Striga hermontheca in two communities in the Upper East Region of Ghana. Technical Report submitted to Presbytarian Agricultural Station. SARI 1999
Abunyewa, A. A. 1999. Soil Analysis for two communities in Northern and Upper East regions of Ghana. Technical Report submitted to ILIEA Northern Ghana LEISA Working Group. SARI. 1999. Can be located at www.ileia.org
Abunyewa, A. A. 1999. Plant nutrient content of imported Pink-colored compound fertilizer. Report submitted to Ghana Cotton Company. SARI. May 1999
Djagblatey, D., Clottey, V. A., Dogbe, W., Tetteh, F., Adjei, S., Asubonteng, K., Abunyewa, A. A., Kasei, C. N., Kankam-Yeboah, K., Langyintuo, A. and Agyare, W. 1999. Semi-Detailed Characterization of the Jolo-Kwaha Inland Valley in the Northern region of Ghana. Technical report submitted to the Inland Valley Consortium. WARDA
Abunyewa, A. A. and Padi, F. K. 1998. Report on effect of Striga hermontheca on grain production in Upper East region of Ghana. Technical Report submitted to Presbytarian Agricultural Station. 1998
Abunyewa, A. A. and Fosu, M. 1998. Soil Analysis for two communities in Northern and Upper East regions of Ghana. Technical Report submitted to ILIEA Northern Ghana LEISA Working Group. 1998
Abunyewa, A. A. and Frey, E. 1998. Some Soil Characteristics in the Sunyani, Asunafo and Atebubu Districts. A Technical Report submitted to GTZ-Sedentary Farming Systems Project in the Brong-Ahafo Region. SARI, January 1998.