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Artykuły w czasopismach na temat „Northern guinea savanna”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

ALIYU, A. U., M. A. YUSUF, and L. F. BUBA. "POTENTIAL OF MAIZE (Zea mays) YIELD IN THE SAVANNA OF KANO STATE, SEMI-ARID REGION OF NIGERIA." FUDMA Journal of Agriculture and Agricultural Technology 8, no. 1 (2022): 258–64. http://dx.doi.org/10.33003/jaat.2022.0801.091.

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This study examined the Savanna agro-ecologies potential of maize yield in Kano State. Field experiment consisted of five different fertilizer treatments namely were replicated three times in a Randomized Complete Block Design. The trial was established at three different locations namely: Doguwa (Northern Guinea Savanna), Bunkure (Sudan Savanna 2) and Dambatta (Sudan Savanna1) with a total of fifteen treatments(Five fertilization for three locations). White maize hybrid cultivar (SC651) was planted at 25cm and 75cm intra plants and inters ridges respectively. The results showed that highest m

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Abdulkadir N. A., Ewusi-Mensah N., Opuko, A., et al. "Response of groundnut (Arachis hypogea) to rhizobia inoculation, mineral nitrogen and inoculation amendment at the two agro ecological zones of northern Nigerian savannah." GSC Advanced Research and Reviews 8, no. 1 (2021): 022–27. http://dx.doi.org/10.30574/gscarr.2021.8.1.0140.

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Nitrogen is the most limiting major nutrient required by all living plants. Nitrogen fertilizer is costly and too much application of nitrogen causes detrimental effects to our ecosystem. Alternatively, the use of commercial microbial inoculants will be an alternative to chemical fertilizer for the small holder farmers in northern Nigeria. Groundnut (pea nut) was selected as a test crop for the inoculation. The experiment was conducted at Sudan savannah in Kano State and Guinea savannah in Bauchi state of Nigeria during the 2016 cropping season. The design of the experiment was RCBD with seven

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Abdulkadir, N. A., N. Ewusi-Mensah, A. Opuko, et al. "Response of groundnut (Arachis hypogea) to rhizobia inoculation, mineral nitrogen and inoculation amendment at the two agro ecological zones of northern Nigerian savannah." GSC Advanced Research and Reviews 8, no. 1 (2021): 022–27. https://doi.org/10.5281/zenodo.5113700.

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Nitrogen is the most limiting major nutrient required by all living plants. Nitrogen fertilizer is costly and too much application of nitrogen causes detrimental effects to our ecosystem. Alternatively, the use of commercial microbial inoculants will be an alternative to chemical fertilizer for the small holder farmers in northern Nigeria. Groundnut (pea nut) was selected as a test crop for the inoculation. The experiment was conducted at Sudan savannah in Kano State and Guinea savannah in Bauchi state of Nigeria during the 2016 cropping season. The design of the experiment was RCBD with seven

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Tofa, Abdullahi I., Uche F. Chiezey, Bashir A. Babaji, et al. "Modeling Planting-Date Effects on Intermediate-Maturing Maize in Contrasting Environments in the Nigerian Savanna: An Application of DSSAT Model." Agronomy 10, no. 6 (2020): 871. http://dx.doi.org/10.3390/agronomy10060871.

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The Crop Environment Resource Synthesis (CERES)-Maize model in Decision Support System for Agricultural Technology Transfer (DSSAT) was calibrated and evaluated with experimental data for simulation of response of two intermediate-maturing maize varieties to different sowing dates in the Nigerian savannas. The calibration experiments involved 14 consecutive field trials conducted in the rainy and dry seasons in Bayero University Kano (BUK), Dambatta, and Zaria between 2014–2019. Two sets of field experiments were conducted simultaneously for model evaluation in Iburu in the southern Guinea sav

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Bolarinwa, Saheed Tunde, and Anthony Ozoemenam Uzoma. "Symbiotic Effectiveness of Rhizobia Strains Isolated from Nigerian Savanna." Advanced Journal of Graduate Research 5, no. 1 (2018): 24–32. http://dx.doi.org/10.21467/ajgr.5.1.24-32.

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Laboratory and screenhouse experiment were conducted to assess the symbiotic effectiveness (SE) of rhizobia isolated from southern Guinea savanna, northern Guinea savanna and Sudan savanna of Nigeria and response of promiscuous soybean varieties, TGx1448-2E, TGx1835-10E and TGx1955-10E to inoculation with ten indigenous rhizobia isolates. The soybean varieties were grown on sterilized sand at the screenhouse of the Department of Soil Science and Land Management, Federal University of Technology Minna and watered using Sandsman’s nutrient solution. The treatments were un-inoculated control, min

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6

SR., Kolapo. "Propagation of Pterocarpus erinaceus Poir. seeds from four vegetation zones of Nigeria, using different pre-sowing treatments and sowing media." Journal of Biodiversity and Environmental Sciences (JBES) 22, no. 5 (2023): 92–103. https://doi.org/10.5281/zenodo.10485381.

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<em>Pterocarpus erinaceus </em>Poir. is a tree species of the family Leguminonaseae distributed across West and Central Africa. The surging demand for its wood has hampered its natural regeneration in Nigeria. Effects of pre-sowing treatments and soil media on the germination of its seeds were examined using stratified random sampling. Seeds were sourced from Guineo-Sudanian savanna, Southern Guinea savanna, Derived/Guinea savanna and Northern/Southern Guinea savanna. Pre-sowing treatments including: water (27<sup>0</sup>C, 50<sup>0</sup>C, and 75<sup>0</sup>C for 8 hours, 16 hours and 24

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Ajayi, Folasade Olubukola, Oladeji Bamidele, Waheed Akinola Hassan, et al. "Production performance and survivability of six dual-purpose breeds of chicken under smallholder farmers' management practices in Nigeria." Archives Animal Breeding 63, no. 2 (2020): 387–408. http://dx.doi.org/10.5194/aab-63-387-2020.

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Abstract. Chickens kept under free-range, backyard or semi-intensive systems in the developing countries have more diverse use and benefits to rural households. Their use varies from region to region and from community to community within a region. The study investigated growth, laying performance and survivability of six improved dual-purpose breeds in five agroecologies of Nigeria represented by the following states: Kebbi (Sudan savanna/northern Guinea savanna); Kwara (northern Guinea savanna/southern Guinea savanna); Nasarawa (southern Guinea savanna/derived savanna); Imo (lowland rainfore

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Ukem, BO. "Responses of sorghum to combined application of a nutrient solution and solid NPK fertilizers." Journal of Agriculture, Forestry and the Social Sciences 11, no. 2 (2015): 248–57. http://dx.doi.org/10.4314/joafss.v11i2.29.

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In the savanna soil of Nigeria, micronutrient deficiency was not noticed in the past but with the intensification of agriculture over the years, crop exploitation of soil available nutrients, crop removal and adverse cultural practices of farmers have led to the incidence of micronutrient deficiency with negative effect on growth, yield and quality of crops. To enhance micronutrient availability, use and use efficiency to crops, a field experiment was set up on sorghum at Samaru in the Northern Guinea Savanna of Nigeria with foliar Algifol (Alg) nutrients solution and NPK. The objectives of th

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9

Takim, F. O., J. O. Omeke, P. Tunku, et al. "Evaluation of maize-soybean intercropping systems and fertilizer rates on maize grain yield using competitive indices." Journal of Agricultural Research and Development 18, no. 1 (2020): 63–76. http://dx.doi.org/10.4314/jard.v18i1.8.

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Field trials were conducted in savanna ecologies of Nigeria during the 2015 and 2016 seasons using maize (PVA8) and soybean (TGX 1448-2E) intercropping systems with different fertilizer rates to evaluate the yield of maize and assess the best intercropping system for resource management. Single plant stands and two plants/stand and 2 arrangements of rows (one row on a ridge and two rows on a ridge) were used to impose maize plant densities evaluated in strip inter-crop with soybean. The trial was factorial, laid out in a randomized complete block design and replicated three times. Thus, 8 maiz

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Ajala, M. K., O. S. Lamidi, and S. M. Otaru. "Peri-Urban Small Ruminant Production in Northern Guinea Savanna, Nigeria." Asian Journal of Animal and Veterinary Advances 3, no. 3 (2008): 138–46. http://dx.doi.org/10.3923/ajava.2008.138.146.

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Kadafur, Ibrahim Mohammed, Yusuf Lawal Idrisa, and Abbas Shehu. "Adoption of improved maize varieties in northern Guinea Savannah of Borno State, Nigeria." Journal of Agricultural Extension 24, no. 1 (2020): 34–41. http://dx.doi.org/10.4314/jae.v24i1.4.

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This study examined the adoption of improved maize varieties in northern Guinea Savanna of Borno State. Primary data were collected by using structured interview schedule. Two hundred maize farmers were systematically selected from. Percentage and logit were used for data analyses. Overall adoption rate was 89.0%. Coefficient of socio-economic and institutional factors such as extension contact (0.0360), farm size (0.2319), education level (0.0460), access to credit (0.6363) and age (0.7619) were found to be significant (P≤0.01) and positively influencing adoption of improved maize varieties.

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Nyadzi, Emmanuel, Mathew I. S. Ezenwa, Benjamin K. Nyarko, A. A. Okhimamhe, Thomas T. Bagamsah, and Francis O. Okelola. "Assessment of Trace Gas Emissions From Wild Fires in Different Vegetation Types in Northern Ghana: Implications for Global Warming." Environment and Natural Resources Research 5, no. 2 (2015): 37. http://dx.doi.org/10.5539/enrr.v5n2p37.

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Biomass burning in Northern Ghana is a major cause for concern because of its potential contribution to global warming, hence climate change. This study assessed the emission of trace gases from human activities in the Guinea savanna of Northern Ghana using the guidelines of the Intergovernmental Panel on Climate Change. Carbon content of biomass was determined from four different vegetation covers in the study area; namely, widely open savanna woodland, grass/herb with scattered trees, open savanna woodland and closed savanna woodland. Under each vegetation cover, five plots (1 m x 1 m) were

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13

Kapu, M. M. "The Natural Forages of Northern Nigeria I. Nitrogen and Mineral composition of Grasses and Browse from the Northern Guinea Savanna and Standing Hays from the different Savanna Zones." Nigerian Journal of Animal Production 2, no. 2 (2021): 235–46. http://dx.doi.org/10.51791/njap.v2i2.2163.

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THE mineral status of nine native grass species and ten browse species from the Northern Guinea Savanna Vegetation was investigated together with the mineral Composition of standing hays from Daura and Kano areas of the Sudan Savanna, Bauchi ranch of the sub-Sudan, Samaru (Shika Kadama) of the Northern Guinea Savanna and Jos area of the Plateau vegetation, in Northern Nigeria. All forage types (grasses, browse and standing hays) which were sampled in April of 1975 were analysed for nitrogen (N), Phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sodium (Na), zinc (Zn) and copper (Cu)

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S. Hamisu, H., S. G. Ado, M. Y. Yeye, et al. "Heterosis for Fruit Yield and Heat Tolerance Traits in Tomato (Lycopersicon Lycopersicum Mill.) Under Field Conditions." Journal of Agricultural Studies 5, no. 4 (2018): 48. http://dx.doi.org/10.5296/jas.v6i2.13047.

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Field experiments were conducted at the National Horticultural Research Institute, Bagauda in the Sudan Savannah and Institute for Agricultural Research, Samaru in the Northern Guinea Savanna ecological zones of Nigeria between July-October, 2014 rainy season to estimates heterosis for fruit yield and heat tolerance traits of tomato under field conditions. The experiment comprised two heat tolerant (Icrixina and Rio Grande) and four heat susceptible tomato (Tima, Tropimech, Petomech and Roma Savana) which were crossed using half diallel mating design in the screen house. The resultant 15 hybri

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Fairhead, James, and Melissa Leach. "Enriching the landscape: social history and the management of transition ecology in the forest–savanna mosaic of the Republic of Guinea." Africa 66, no. 1 (1996): 14–36. http://dx.doi.org/10.2307/1161509.

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AbstractThe mosaic of forest and savanna vegetation found along the northern margin of West Africa's moist forest zone has generally been understood in policy circles as a degraded and degrading forest landscape, following savannisation by its farming populations. Some ecologists have suggested that the vegetation mosaic may, however, be more stable, determined by soil differences, and others still that forest may be encroaching on savanna as a result of long-term climatic rehumidification. This article presents historical evidence from Kissidougou which shows that, contrary to scientific and

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Ndubuisi, A. H., E. O. Otchere, and A. O. Ogungbile. "ECONOMICS OF TRADITIONAL CATTLE PRODUCTION IN THE NORTHERN GUINEA SAVANNA OF NIGERIA." Nigerian Journal of Animal Production 21 (January 3, 2021): 135–41. http://dx.doi.org/10.51791/njap.v21i1.1162.

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A survey to determine the economics of traditional cattle production among agropastoralists was carried out in Giwa Local Government Area of Kaduna State. The survey covered 75 agropastoral households grouped into three categories viz: CI, CII and CIII for livestock activities and two groups GP1 and GP2 for cropping activities. The analytical framework used in the study include simple gross margin and multiple regression analysesResults of the study indicated that 66.67% of the respondents have lived in the study area for up to five years. Total variable cost (TVC) varied with the size of herd

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KAMARA, ALPHA Y., ABDULLAHI I. TOFA, TEMITOPE ADEMULEGUN, et al. "MAIZE–SOYBEAN INTERCROPPING FOR SUSTAINABLE INTENSIFICATION OF CEREAL–LEGUME CROPPING SYSTEMS IN NORTHERN NIGERIA." Experimental Agriculture 55, no. 1 (2017): 73–87. http://dx.doi.org/10.1017/s0014479717000564.

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SUMMARYField studies were conducted during the 2014 and 2015 wet seasons at Zaria in the northern Guinea savanna and at Iburu in the southern Guinea savanna of Nigeria to determine the productivity of maize–soybean intercropping system. There were four treatment combinations in the experiment: sole maize; sole soybean; maize spaced at 50 cm and intercropped with soybean; and maize spaced at 65 cm and intercropped with soybean. The experiment was laid out in a randomized complete block design with three replications. The results showed that sole cropped maize and soybean generally outperformed

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Abraham, Martey, Richard Osei, Isaac Kodzo Amegbor, and Israel K. Dzomeku. "Response of Upland New Rice for Africa (NERICA) to Nitrogen Fertilization in the Guinea Savannah Agro-ecological Zone." Asian Research Journal of Agriculture 17, no. 2 (2024): 196–205. http://dx.doi.org/10.9734/arja/2024/v17i2437.

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The trial was conducted during the cropping season of 2020 June to November on the upland field of the Savanna Agricultural Research Institute (SARI), at Nyankpala near Tamale in the Northern Region of Ghana. The objective was to establish the response of Upland New Rice for Africa (NERICA) to nitrogen fertilization in the Guinea Savannah Agroecological Zone. Two upland NERICAs were used. A 2×2×5 factorial experiment was laid out in Randomized Complete Block Design (RCBD) in three replications. The Phosphorus and Nitrogen fertilizers rates were 0, 60 kg P/ha and 0, 30, 60, and 120 kg N/ha resp

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Hassan, M.R, S.B Abdu, B. Abdullahi, et al. "EFFECT OF GRADED LEVELS OF LYSINE ON LATE BEHAVIOR OF LAYING HENS IN NORTHERN GUINEA SAVANNA." Continental J. Animal and Veterinary Research 2 (June 16, 2010): 48–51. https://doi.org/10.5281/zenodo.818034.

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An experiment was conducted with 120 beak trimmed 46 weeks old layers (Shika Brown Strain) to investigate the effect of varying lysine levels on late behaviour of the hens in deep litter system. Laying Hens were randomly allocated to 5 experimental diets containing varying lysine levels (0, 0.1, 0.2, 0.3 and 0.4%) each replicated 3 times. Behavioural observations were obtained using focal continuous sampling and instantaneous scan sampling methods, timed for 15 minute before feeding the hens and after feeding, respectively. The result indicated that both normal and stereotype behaviours increa

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Okutu, Chiweta, Ahmed Abdullahi, Jane Oyidiya, and Jacob Olatunde. "Response of grain amaranth (Amaranthus cruentus L.), to method and rate of cattle kraal manure application at Kadawa and Samaru in Nigeria." Journal of Agricultural Sciences, Belgrade 56, no. 3 (2011): 173–86. http://dx.doi.org/10.2298/jas1103173o.

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Field experiments were conducted between June and October 2010 wet season at two different locations. The first was at the Horticultural Research Garden of the Institute for Agricultural Research (IAR), Samaru in the Northern Guinea Savanna agro-ecological zone and the second experiment was conducted at the Research Farm of the Irrigation Research Sub-Station (IRS), Kadawa in the Sudan Savanna agro-ecological zone also of the Institute for Agricultural Research, Ahmadu Bello University, Zaria, Nigeria to evaluate the response of grain amaranth growth and green edible vegetable yield components

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Akpa, G. N., O. J. Ifut, and F. Mohammed. "Indigenous management of Dystocia in ruminant livestock of northern guinea savanna of Nigeria." Nigerian Journal of Animal Production 29, no. 2 (2021): 264–70. http://dx.doi.org/10.51791/njap.v29i2.1574.

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This study, conducted in Bauchi and Zaria areas of the northern guinea savanna zone of Nigeria involved livestock that encountered problems during parturition Ninety eight Hausa-Fulani livestock holdings involving cattle, sheep and goats were investigated. The study focused on causes of and remedies for dystocia. The study showed that farmers have traditional means of handling difficult birth in ruminants. The identifiable causes of dystocia included age and size of dam, abnormal foetal presentation, poor health, multiple foetuses and weight and sex of the young. The management of this problem

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WEBER, G., K. ELEMO, and S. T. O. LAGOKE. "Weed communities in intensified cereal-based cropping systems of the northern Guinea savanna." Weed Research 35, no. 3 (1995): 167–78. http://dx.doi.org/10.1111/j.1365-3180.1995.tb02030.x.

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CARSKY, R. J., S. NOKOE, S. T. O. LAGOKE, and S. K. KIM. "MAIZE YIELD DETERMINANTS IN FARMER-MANAGED TRIALS IN THE NIGERIAN NORTHERN GUINEA SAVANNA." Experimental Agriculture 34, no. 4 (1998): 407–22. http://dx.doi.org/10.1017/s0014479798004074.

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Farmer-managed tests of Striga hermonthica-resistant maize varieties were conducted in 1994 in a moderately intensified zone in the northern Guinea savanna of Nigeria. Field history, soil properties, current season fertility management, and crop management observations were recorded for 37 farmer-managed trials. Site averages for maize grain yield varied from 300 to 4000 kg grain ha−1. In spite of the tremendous variability observed, the grain yield was significantly higher for the striga-resistant hybrid 8321-18 compared with an improved open-pollinated variety, STR Syn-W, and the farmers' cu

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FRANKE, A. C., S. SCHULZ, B. D. OYEWOLE, and S. BAKO. "INCORPORATING SHORT-SEASON LEGUMES AND GREEN MANURE CROPS INTO MAIZE-BASED SYSTEMS IN THE MOIST GUINEA SAVANNA OF WEST AFRICA." Experimental Agriculture 40, no. 4 (2004): 463–79. http://dx.doi.org/10.1017/s001447970400211x.

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A three-year trial was conducted on a degraded soil in the moist Guinea savanna of northern Nigeria to assess the possibility of improving productivity and economic viability of maize-based systems by incorporating short-season legumes and green manure crops into the cropping pattern. Treatments included double cropping legume-maize systems, full-season sole maize receiving various amounts of nitrogen, green manure crop mucuna (Mucuna pruriens var. utilis) followed by sole maize and a legume-maize system receiving additional rice mill waste. In comparison with full-season maize, the use of ear

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KERMAH, M., A. C. FRANKE, B. D. K. AHIABOR, S. ADJEI-NSIAH, R. C. ABAIDOO, and K. E. GILLER. "LEGUME–MAIZE ROTATION OR RELAY? OPTIONS FOR ECOLOGICAL INTENSIFICATION OF SMALLHOLDER FARMS IN THE GUINEA SAVANNA OF NORTHERN GHANA." Experimental Agriculture 55, no. 5 (2018): 673–91. http://dx.doi.org/10.1017/s0014479718000273.

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SUMMARYSoil nutrient constraints coupled with erratic rainfall have led to poor crop yields and occasionally to crop failure in sole cropping in the Guinea savanna of West Africa. We explored different maize-grain legume diversification and intensification options that can contribute to mitigating risks of crop failure, increase crop productivity under different soil fertility levels, while improving soil fertility due to biological N2-fixation by the legume. There were four relay patterns with cowpea sown first and maize sown at least 2 weeks after sowing (WAS) cowpea; two relay patterns with

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Ebenezer Kofi, Sam, Kugbe Xorse Joseph, Adu-Gyamfi Raphael, Odoom Asooming Daniel, Laryea Obodia Kenneth, and Asodewine Peter. "Comparative Assessment of Phosphorus Fertilization and Rhizobia Inoculation on Soybean Production in the Guinea Savanna Zone of Ghana." Journal of Agriculture and Crops, no. 56 (June 10, 2019): 78–86. http://dx.doi.org/10.32861/jac.56.78.86.

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In the Guinea savannah zone of northern Ghana, the soils are reported to be declining for agricultural productivity. In these farming communities that depend on soybean production for their livelihoods, resource-poor farmers are not able to afford purchases of high cost inorganic phosphatic fertilizers to enhance the crop’s production. The need arises to identify efficient practices and strategies and research into alternative means of enhancing soybean production to improve food security. This Randomized Complete Block Design as an experimental tool was employed to carry out a research in the

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Haruna, Abdulai, James Matent Kombiok, Askia Musah Mohamed, Joseph Sarkodie-Addo, Asamoah Larbi, and Nurudeen Abdul Rahman. "Profitability of Cowpea Intercropped With Maize in West Africa Guinea Savanna." Journal of Agricultural Science 10, no. 11 (2018): 185. http://dx.doi.org/10.5539/jas.v10n11p185.

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An on-farm trial was conducted over a 2-year period in Tibali in the Savelugu district of Northern region of Ghana to evaluate the productivity and economic returns of hybrid and open pollinated maize (OPV) either in pure stands or intercropped with erect and trailing cowpea. The maize varieties used were medium maturing (110 days) whie the cowpea varieties were early maturiing (70 days). The experiment was conducted in a randomized complete block design with 14 treatments (sole pan53, sole Etubi, sole mamaba, sole obatampa, sole erect cowpea, sole trailing cowpea, erect cowpea + pan53, erect

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Akinyemi, A. A. "Grass/Legume Compatibility in the Derived Savanna Regions of Western State of Nigeria." Nigerian Journal of Animal Production 3, no. 1 (2021): 120–25. http://dx.doi.org/10.51791/njap.v3i1.2583.

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THE grass/legume compatibility between six grasses and three legumes were studied at Fashola State Farm in the derived savanna region of Western State of Nigeria. The highest herbage yields per hectare per annum were obtained from the mixed swards. The yields of legumes were smaller in the mixtures with the tall than in the short grasses. It was concluded that in this area, Stylosanthes gracillis was compatible with the elephant and Guinea grasses. Pueraria Phaseoloids was compatible with the Northern Gambia and the mulasses grasses, while the Centrosema pubescence combined well with the giant

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Salami, S. O., F. A. Makinde, and G. M. Garba. "Foetal wastage in goats slaughtered in Zaria abattoir, Northern Guinea Savanna Zone of Nigeria." Nigerian Journal of Animal Production 37, no. 1 (2021): 117–22. http://dx.doi.org/10.51791/njap.v37i1.692.

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The study was carried out with the aim of determining the age and percentage wastage of foetus due to the slaughter of pregnant does in Zango Abattoir, Samaru, Zaria. Out of a total of 680 female goats slaughtered during three months (January to March, 1998), 275 (40.44%) of the were pregnant. From the pregnant uteri, 460 foetuses were recovered and used for the study. Out of the recovered foetuses 41.09, 21.82 and 37.09% were twins, triplets and single respectively. The weight as well as the crown-rump of the foetuses were measured and the results obtained were used to determine their estimat

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Audu, Kalen Ephraim, Dahiru Sani, Ibrahim Madu Katsallah Gadzama, Mohammed A. Galadima, and Tabita Gaba Sule. "ASSESSMENT OF SEDIMENTS AND GEOMORPHOLOGY OF FRESHWATER BODIES IN NORTHERN GUINEA SAVANNA ZONE, NIGERIA." FUDMA JOURNAL OF SCIENCES 7, no. 6 (2023): 149–56. http://dx.doi.org/10.33003/fjs-2023-0706-2060.

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Sediments from freshwater bodies of the Northern Guinea Savanna Zone of Nigeria act as reservoirs for mineral and chemical nutrients washed from different sources around the environment. This research aimed at assessing the chemical and macronutrients of the sediments from freshwater bodies and the geomorphology of the area. A global positioning system, Model N9 GARMIN eTrexLegend™, personal navigator® was used to determine the geomorphological features while a polyvinyl chloride tube of 1.0 m long, 25 mm in diameter and 2.0 mm thick was used for sediment collection from a depth of 0-15 cm. Th

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Omijeh, Justus Eronmosele. "Deriving a Template for Sustainable Forest Management in Nigeria’s Northern Guinea Savanna: Study of Detarium Microcarpum (Fabaceae)." Journal of Sustainability and Environmental Management 3, no. 3 (2024): 159–64. https://doi.org/10.3126/josem.v3i3.76863.

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Detarium microcarpum (Fabaceae) is a small tree found in the Sudan and Guinea Savanna and used for several nutritional and health purposes. A template was developed to enhance the practice of sustainable forest management. Nineteen sample trees were assessed for different growth parameters, yielding a coefficient of determination (r2) and Pearson’s correlation coefficient (r). The analysis showed the relationship between tree height and crown diameter, crown area, basal area, crown ratio, and volume as 0.22, 0.01, 0.55, 0.10, and 0.70, respectively. To assuage the harsh effects of climate chan

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KAMARA, A. Y., A. MENKIR, S. O. AJALA, and I. KUREH. "PERFORMANCE OF DIVERSE MAIZE GENOTYPES UNDER NITROGEN DEFICIENCY IN THE NORTHERN GUINEA SAVANNA OF NIGERIA." Experimental Agriculture 41, no. 2 (2005): 199–212. http://dx.doi.org/10.1017/s0014479704002479.

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The Guinea savannas of Nigeria have a high potential for the production of maize because of favourable environmental conditions. Despite this high potential, the yields obtained in farmers' fields are still very low. This is due to soil degradation and nutrient depletion arising from intensification of land use. Nitrogen (N) is the major nutrient limiting maize production in the Guinea savannas where the use of inorganic fertilizers is low. One strategy for improving the productivity of maize is to select varieties that perform well under suboptimal soil N conditions. This study assessed the p

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Sodimu, A.I., M.B Usman, N.O Oladele, L.G Lapkat, T.A. Awobona, and R. Suleiman. "ASSESSMENT OF PROFITABILITY OF WATER MELON (CITRILLUS LANATUS) IN SELECTED MARKETS IN PARTS OF KADUNA NORTHERN GUINEA SAVANNAH OF NIGERIA." International Journal of Research -GRANTHAALAYAH 8, no. 5 (2020): 121–25. https://doi.org/10.29121/granthaalayah.v8.i5.2020.78.

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The study examines the assessment of profitability of watermelon ( Citrillus lanatus ) in selected markets in parts of Kaduna Northern Guinea Savanna of Nigeria. One hundred questionnaires were randomly administered (100) and 51 were recovered from the respondents. Descriptive statistics gross margin analysis and Z - test were used to analyze the data collected. The results revealed that 74.51% of the resp ondents are male and 25.29% are female. Majority of the respondents are aged between 35 – 45 years (43.14%) and 12.55% are married. 35.29% of the respondent had secondary education and

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Tahiru, Fulera, Mathias Fosu, Thomas Gaiser, et al. "Fertilizer and Genotype Effects on Maize Production on Two Soils in the Northern Region of Ghana." Sustainable Agriculture Research 4, no. 4 (2015): 76. http://dx.doi.org/10.5539/sar.v4n4p76.

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Soils in the Guinea Savanna agro-ecological zone of Ghana are depleted in major nutrients by continuous cropping and residue removal, resulting in low maize yields. While many studies have assessed the fertilizer requirements for maize, most did not account for the role of the soil type and maize genotype. A study was conducted on Plinthosol and Lixisol in the Tolon district of the Northern Region of Ghana to assess fertilizer and genotype effects on maize productivity. Two maize genotypes (i.e. Obatanpa -110 days to maturity) and (Dodzie - 75 days to maturity) were compared at three fertilize

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Adeola, Richard, Tajudeen Akinrinola, and Olajire Fagbola. "Performances of maize and soybean as influenced by intercropping and fertilizer sources in the Northern Guinea Savanna agro-ecology of Nigeria." Journal of Central European Agriculture 24, no. 3 (2023): 667–80. http://dx.doi.org/10.5513/jcea01/24.3.3753.

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Geysbeek, Tim. "A Traditional History of the Konyan (15th-16th Century): Vase Camara's Epic of Musadu." History in Africa 21 (1994): 49–85. http://dx.doi.org/10.2307/3171881.

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In an oral discourse passed down through many generations, the village elder Vase Kamara describes how a slave named Zo Musa Kòma founded the ancient town of Musadu in Guinea-Conakry, and he explains how the legendary Kamara ancestor Foningama later became a leader in Musadu. We tentatively date some elements of the Zo Musa stories to about the fourteenth and fifteenth century, when the Manding began to assimilate and push the Southwestern and Eastern Mande-speaking peoples from the Musadu area in the Konyan to the forest. Some of the Foningama related accounts seem to correspond to the era wh

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Anyika, C. C., A. Ninyo, and T. Kparmwang. "Sorption-Desorption of Zn by a Rhodic Khandiustult in the Northern Guinea Savanna of Nigeria." Research Journal of Soil and Water Management 1, no. 2 (2010): 21–26. http://dx.doi.org/10.3923/rjswm.2010.21.26.

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Odunze, A. C., E. N. O. Iwuafor, and V. O. Chude. "Maize/Herbaceous Legume Inter-Crops and Soil Properties in the Northern Guinea Savanna Zone, Nigeria." Journal of Sustainable Agriculture 20, no. 1 (2002): 15–25. http://dx.doi.org/10.1300/j064v20n01_04.

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Murdoch, Michele E., Ian E. Murdoch, Jennifer Evans, et al. "Pre-control relationship of onchocercal skin disease with onchocercal infection in Guinea Savanna, Northern Nigeria." PLOS Neglected Tropical Diseases 11, no. 3 (2017): e0005489. http://dx.doi.org/10.1371/journal.pntd.0005489.

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Chikoye, David, Steffen Schulz, and Friday Ekeleme. "Evaluation of integrated weed management practices for maize in the northern Guinea savanna of Nigeria." Crop Protection 23, no. 10 (2004): 895–900. http://dx.doi.org/10.1016/j.cropro.2004.01.013.

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Rahman, SA. "Yields and benefit-costs of cereal-legume rotations in the Guinea savanna of northern Nigeria." Tropical Science 46, no. 3 (2006): 151–54. http://dx.doi.org/10.1002/ts.72.

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Anyika, C.C, A. Ninyo, and T. Kparmwang. "SORPTION - DESORPTION OF ZN BY A RHODIC KHANDIUSTULT IN THE NORTHERN GUINEA SAVANNA OF NIGERIA." Continental J. Agronomy 4 (June 18, 2010): 15–22. https://doi.org/10.5281/zenodo.810515.

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Zinc adsorption at concentrations between 0 to 50 mg Zn l <sup>-1 </sup> was evaluated in surface and subsurface samples of a basaltic soil in the Northern Guinea Savanna, a Rhodic khandiustult. After adsorption, 3 consecutive extractions (desorption) in sequence were performed to the samples by using 25ml of 0.1NHCl. The results showed that the Ap and Bt horizons have large capacities to adsorb zinc. While the desorption showed that the sorbed zinc was not rigidly bound. The amount of zinc released in the Ap horizon was slightly more than that released in the Bt horizon, i.e. Zn was more diff

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AT, Ricwuskebnde, Angyu Micah Dantani, and David Tsoken Maigida. "Effect of Arbuscular Mycorrhizal Fungi on physiological growth of maize in Northern Guinea Savanna soil." Discovery Agriculture 11, no. 23 (2025): 1–11. https://doi.org/10.54905/disssi.v11i23.e6da3107.

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Eseigbe, Osagie B., Alpha Y. Kamara, Sani Miko, et al. "The Impact of Planting Dates on the Performance of Soybean Varieties [Glycine max (L.) Merr.] in the Nigerian Savannas." Agronomy 14, no. 10 (2024): 2198. http://dx.doi.org/10.3390/agronomy14102198.

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Increasing delays in the onset of the rainy season and extended dry spells in the Nigerian savannas are complicating the determination of optimal planting dates for rain-fed crops, which increases risks for farmers. This study evaluated the impact of planting dates on soybean [Glycine max (L.) Merr.] performance to identify optimal planting dates for different soybean varieties in two agroecological zones (AEZs) of Nigeria. The study involved six planting dates (15 June, 22 June, 29 June, 6 July, 13 July, and 20 July) and three soybean varieties (TGX-1835-10E, TGX-1951-3F, TGX-1904-6F). Result

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Neldner, Victor J., Rodrick W. Rogers, and Paul I. Forster. "The lichen flora of tropical Cape York Peninsula, Queensland, Australia." Australian Journal of Botany 66, no. 5 (2018): 428. http://dx.doi.org/10.1071/bt17246.

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The first account of the lichen flora of the Cape York Peninsula bioregion is provided with 423 lichen taxa from 47 families and 127 genera recorded. The tropical savannas of Cape York Peninsula, which experience annual or biennial ground fires, are generally a harsh environment for lichen establishment and growth. The majority of eucalypts and Melaleuca viridiflora Sol. ex Gaertn. trees that dominate much of Cape York Peninsula vegetation regularly shed their bark and do not generally provide a suitable habitat for lichen establishment and persistence. However, even in these savanna habitats,

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Bebeley, Jenneh F., Abdullahi I. Tofa, Alpha Y. Kamara, et al. "Modelling the potential impact of climate change on the productivity of soybean in the Nigeria Savannas." PLOS ONE 20, no. 3 (2025): e0313786. https://doi.org/10.1371/journal.pone.0313786.

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A well-calibrated and evaluated GROPGRO module of the Decision Support System for Agro-technological Transfer (DSSAT) was used to simulate productivity of soybean in northern Nigeria under climate change. Both historical (1990–2019) and projected climate scenarios from 5 general circulation models (GCMs) under two representative concentration pathways (RCP 4.5 and RCP 8.5) in the mid-century (2040–2069) and end of the century (2070–2099) periods were used. Depending on climate scenario, the minimum temperature is expected to rise by 1.7–4.4oC at Kano in the Sudan savanna (SS) agroecological zo

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Adesoji, A. G., I. U. Abubakar, and D. A. Labe. "Economic Performance of Maize under Incorporated Legumes and Nitrogen in Northern Guinea Savanna Zone of Nigeria." Asian Journal of Agricultural Research 10, no. 1 (2015): 38–46. http://dx.doi.org/10.3923/ajar.2016.38.46.

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Lawal, Halima Mohammed, U. M. Salifu, I. Y. Amapu, and H. I. Atta. "DIVERSITY OF MICROBES IN SOIL AGGREGATE FRACTIONS UNDER DIFFERENT LAND-USE IN NORTHERN GUINEA SAVANNA, NIGERIA." FUDMA JOURNAL OF SCIENCES 4, no. 2 (2020): 510–18. http://dx.doi.org/10.33003/fjs-2020-0402-192.

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Microorganisms play vital role in keeping soil healthy. Bacteria, Fungi and Actinobacteria are active in degrading soil organic matter which improves soil ecosystem functioning. There exists a dearth of information on the influence of land-use on diversity of microbes in different soil aggregate sizes in Northern Guinea Savanna of Nigeria. This study assessed the diversity of soil microbes under six different land-use practices namely forest, fallow, pasture legume, pasture cereal, date palm plantation and continuous cultivated. In each land-use soil samples were collected at two depths (0-5 c

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Odunze, A., T. Kudi, C. Daudu, and J. Adeosun. "Soil moisture stress mitigation for sustainable upland rice production in the Northern Guinea Savanna of Nigeria." Agriculture and Biology Journal of North America 1, no. 6 (2010): 1193–98. http://dx.doi.org/10.5251/abjna.2010.1.6.1193.1198.

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Sani, Y. A., S. Usman, Z. Omenesa, and I. J. Sambo. "YIELDS AND COST-BENEFIT ANALYSIS OF SWEET CORN PRODUCTION IN THE GUINEA SAVANNA OF NORTHERN NIGERIA." Acta Horticulturae, no. 1007 (September 2013): 563–69. http://dx.doi.org/10.17660/actahortic.2013.1007.65.

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