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Journal articles on the topic 'Northern guinea savannah'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Dogbe, W., J. M. Sogbedji, and S. S. J. Buah. "Site-specific Nutrient Management for Lowland Rice in the Northern Savannah Zones of Ghana." Current Agriculture Research Journal 3, no. 2 (2015): 109–17. http://dx.doi.org/10.12944/carj.3.2.04.

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A multi-location study was conducted to assess the nitrogen (N), phosphorous (P) and potassium (K) requirements of lowland rice (Oryza sativa L.) for a local variety Digang cultivated in the northern Savannahs of Ghana and offer site specific nutrient recommendations. Ten on-farm nutrient omission trials involving five rates of N, P and K combinations were conducted during 2010 cropping season in Sudan and Guinea Savannah agro-ecological zones. The treatments (kg/ha as N, P2O5 and K2O) comprised 0-0-0 (control), 0-90-90 (zero N), 90-0-90 (zero P), 90-90-0 (zero K), 90-90-90 (NPK). Grain yields

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Oliver, Paul M., Eric N. Rittmeyer, Janne Torkkola, Stephen C. Donnellan, Chris Dahl, and Stephen J. Richards. "Multiple trans-Torres Strait colonisations by tree frogs in the Litoria caerulea group, with the description of a new species from New Guinea." Australian Journal of Zoology 68, no. 1 (2020): 25. http://dx.doi.org/10.1071/zo20071.

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Australia and New Guinea (together referred to as Sahul) were linked by land for much of the late Tertiary and share many biotic elements. However, New Guinea is dominated by rainforest, and northern Australia by savannah. Resolving patterns of biotic interchange between these two regions is critical to understanding the expansion and contraction of both habitat types. The green tree frog (Litoria caerulea) has a vast range across northern and eastern Australia and New Guinea. An assessment of mitochondrial and morphological diversity in this nominal taxon in New Guinea reveals two taxa. True

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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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Abdulkadir N A, Ewusi-Mensah N, Opuko A, et al. "Response of soybean (Glycine max) to Rhizobia inoculation, mineral nitrogen and inoculation amendment at the two agro ecological zones of northern Nigerian savannah." GSC Advanced Research and Reviews 7, no. 3 (2021): 058–66. http://dx.doi.org/10.30574/gscarr.2021.7.3.0073.

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For sustainable agriculture nitrogen must be adequately supplied because it is the most limiting major nutrient required by all living plants. This experiment was conducted at the two ecological zones, Sudan savannah in Kano State and Guinea savannah in Bauchi state of Nigeria during the 2016 cropping season. The design of the experiment was Randomized Complete Block Design (RCBD) with seven treatments and four replications in each site. The treatments were; legume fix, alosca, 50 kg N ha-1, cattle manure, legume fix + cattle manure, alosca + cattle manure and control. The result showed that L

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Abdulkadir, N. A., N. Ewusi-Mensah, A. Opuko, et al. "Response of soybean (Glycine max) to Rhizobia inoculation, mineral nitrogen and inoculation amendment at the two agro ecological zones of northern Nigerian savannah." GSC Advanced Research and Reviews 7, no. 3 (2021): 058–66. https://doi.org/10.5281/zenodo.5059687.

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For sustainable agriculture nitrogen must be adequately supplied because it is the most limiting major nutrient required by all living plants. This experiment was conducted at the two ecological zones, Sudan savannah in Kano State and Guinea savannah in Bauchi state of Nigeria during the 2016 cropping season. The design of the experiment was Randomized Complete Block Design (RCBD) with seven treatments and four replications in each site. The treatments were; legume fix, alosca, 50 kg N ha-1, cattle manure, legume fix + cattle manure, alosca + cattle manure and control. The result showed that L

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7

Olufolaji, O. A. Denton, Margaret J. Makinde, and J. A. Akinfasoye. "557 Germplasm Evaluation of Thirty-nine and Ecological Adaptation Trials of Seven Tomato (Lycopersicon esculentum) Varieties in Nigeria." HortScience 35, no. 3 (2000): 491F—492. http://dx.doi.org/10.21273/hortsci.35.3.491f.

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Nigeria has diverse ecological conditions, ranging from mangrove swamp of the southern coastal regions to the derived Savannah of the middle belt and the Sudan/Guinea Savannah of the Northern part of the country. Using the southern wet humid rainforest condition of NIHORT, Ibadan, two germplasm evaluation trials were carried out during the rainy season of May to Sept. 1996 and 1997. Thirty-nine tomato accessions were investigated on 1 × 4-m plots at 50 x75-cm spacing in a completely randomized block design with three replications. The top 10 and the least 10 accessions were evaluated for yield

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8

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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Soara, Aïcha Edith, Essodina Talaki, Guiguigbaza-Kossigan Dayo, Isidore Houaga, Kokou Tona, and Mohammed Bakkali. "Genetic diversity of indigenous guinea fowl (Numida meleagris) using microsatellite markers in northern Togo." PeerJ 10 (January 20, 2022): e12637. http://dx.doi.org/10.7717/peerj.12637.

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Indigenous guinea fowl is an important animal resource for improving rural household income. In order to provide molecular data for a sustainable management of this poultry resource, an assessment of the genetic diversity and phylogenic relationships was undertaken on seven guinea fowl phenotypes from two agroecological zones (Dry Savannah and Atakora) of Togo. Genotyping was carried out using 18 microsatellite markers on 94 individuals from Dry Savannah (59) and Atakora (35) zones. The results obtained showed a high genetic diversity, with six as an average alleles per locus and an observed h

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Habibu, Buhari, Kausar Mohammed Umar, Lukman Surakat Yaqub, Sadat Salifu, and Hussaina Joan Makun. "Thermoregulation in humid climate-adapted and Savannah breeds of goats exposed to West African cold (harmattan) season." Agricultura Tropica et Subtropica 54, no. 1 (2021): 192–200. http://dx.doi.org/10.2478/ats-2021-0020.

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Abstract The West African Dwarf (WAD) goats have hereditary dwarfism and are adapted to the humid climate. The study compared the cold tolerance of WAD and Savannah (Red Sokoto and Sahel) goats during the peak of the West African cold season in the Northern Guinea Savannah of Nigeria. A total of 18 adult non-pregnant, dry does comprising equal number of each breed (six per breed) were used for the study. Thermoregulatory variables were recorded four times in the morning (07:00 h) and afternoon (13:00 h) hours at two-day intervals. Results revealed that irrespective of the hour of day, the WAD

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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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Ogbe, F. O., G. Thottappilly, A. G. O. Dixon, G. I. Atiri, and H. D. Mignouna. "Variants of East African cassava mosaic virus and Its Distribution in Double Infections with African cassava mosaic virus in Nigeria." Plant Disease 87, no. 3 (2003): 229–32. http://dx.doi.org/10.1094/pdis.2003.87.3.229.

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In a survey for cassava mosaic begomoviruses conducted in 1997 and 1998 in Nigeria, East African cassava mosaic virus (EACMV) was detected by the polymerase chain reaction together with African cassava mosaic virus (ACMV) in 27 out of 290 cassava leaf samples of infected plants from 254 farmers' fields in five agroecological zones. One plant was infected with EACMV only. Five variant isolates of EACMV were observed based on their reactions to primers that could detect Cameroonian and East African strains of EACMV. Isolates of variants 1 and 3 occurred mostly in the derived or coastal and south

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13

Zakari, B. G., Isma’ila Muhammad, A. S. Kiri, and A. Idi. "Study on the Pathogenic Fungi Threatening Pepper Cultivation in the Northern Guinea Savannah Ecological Zone of Nigeria." Journal of Environmental Bioremediation and Toxicology 6, no. 2 (2023): 61–67. https://doi.org/10.54987/jebat.v6i2.987.

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The Northern Guinea Savannah ecological zone of Nigeria, with its rich history of pepper production, faces challenges like diseases, pests, and weed management issues, resulting in lower yields compared to Western Europe. This investigation explores the prevalence and virulence of fungal pathogens affecting pepper cultivation in this region, specifically in Jalingo and Yola, characterized by distinct wet and dry seasons. The study employed a complete randomized design for laboratory investigations and split plots for screenhouse pathogenicity tests, taking into account different pepper cultiva

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14

SAKARIYAU, Lawal Yittametu, and Tunde Folawiyo HAMEED. "THE FEAUTURES OF ILORIN ECONOMY DURING COLONIAL RULE, 1900-1960." Nigerian Educational Digest (NED) Volume 15, No. 1, June - December 2023 (2023): 119–24. https://doi.org/10.5281/zenodo.8400099.

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The location of the Ilorin as a frontier Emirate gave it ample opportunity to mediate between the North and South of Nigeria. The town is a mixed grill of both Yoruba and Northern Nigerian ethnic groups who were generally refer to as “Hausa” even though, there are others like; Nupe, Kanuri, Kembari, Baruba, Arewa among others who settled in Gambari Quarters of Ilorin. The vegetation also provided another advantage for the people of Ilorin Emirate in terms of agricultural practices. It is a mixture of both forest and savannah vegetations. Geographically, it is located in Guinea sava

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15

USEH, Nicodemus M., Sunday B. OLADELE, Najume D. G. IBRAHIM, Andrew J. NOK, and King A. N. ESIEVO. "Prevalence of Equine Diseases in the Northern Guinea Savannah of Zaria, Nigeria." Journal of Equine Science 16, no. 1 (2005): 27–28. http://dx.doi.org/10.1294/jes.16.27.

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16

Akarikiya, Samuel Azebadumah, Dei Herbert Kwabla, and Alhassan Mohammed. "Quail Production Systems, Prospects and Constraints in Ghana." Asia Pacific Journal of Sustainable Agriculture, Food and Energy 10, no. 2 (2022): 55–68. http://dx.doi.org/10.36782/apjsafe.v10i2.173.

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This study was undertaken to assess the production systems, prospects and challenges of quail farming in three (3) ecological zones (Rainforest, Transitional and Guinea Savannah) in Ghana. Sixty (60) quail farmers were purposefully sampled for the study using the snowball sampling technique. Data were gathered through interviews with the aid of structured questionnaire and analysed using SPSS 22.0. The results showed that more males (86.7%) than females (13.3%) were involved in quail farming in Ghana with majority (73.3%) of farmers having less than five years of experience in the business. Ab

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17

Jibrin., Musa Dibal, Ramalan A.A, and Oyebode M.A. "VARIETAL RESPONSE OF IRISH POTATOES TO IRRIGATION SCHEDULING IN THE NORTHERN GUINEA SAVANNAH ZONE OF NIGERIA." Continental J. Engineering Sciences 5, no. 1 (2010): 18–26. https://doi.org/10.5281/zenodo.833735.

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The effects of cumulative pan evaporation (CPE)-based irrigation scheduling on growth, yield, crop water use and crop water use efficiency of Irish potatoes (<em>Solannum tuberosum L.)</em> were studied. Irrigation scheduling was at CPE of 20 mm, 30 mm, 40 mm and irrigating at 7-days rotation (Control). Net depth of 50 mm was used. Pakistan, Nicola, SP and Dual were the four varieties of Irish potatoes used for the study. Irrigating at 20 mm resulted in early flowering, early germination, highest total yield at harvest, largest tuber sizes, heaviest tubers, and largest total number of tubers.

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18

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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Yahaya, A., A. M. Zongoma, F. Yahaya, A. Mijinyawa, F. Ismail, and D. B. Dangora. "A survey of major constraints associated with sugarcane production in Northern Guinea Savannah Region of Nigeria." Dutse Journal of Pure and Applied Sciences 10, no. 2c (2024): 364–75. http://dx.doi.org/10.4314/dujopas.v10i2c.34.

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Sugarcane, Saccharum officinarum family Poaceae, is a perennial grass grown for its stem (cane) which is primarily used to produce sucrose. Three landraces: purple, white and green cane are mainly cultivated by commercial farmers in Northern Guinea Savannah region (NGS) of Nigeria. Survey was conducted to determine the cropping system, viruses as well as other abnormalities associated with sugarcane fields in Kaduna, Kano and Katsina states across the northern guinea savannah region of Nigeria. Eighty three percent (83%) of growers interviewed practice monocropping while the remaining intercro

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R.A. Yahaya, L. Aliyu, E.C. Odion, and B.A. Babaji. "Effects of sheep manure, plant population and nitrogen levels on growth and fresh fruit yield of chilli pepper (<i>Capsicum frutescence</i> l.) at Samaru, Zaria, Nigeria." Journal of Agriculture and Environment 19, no. 2 (2024): 113–23. http://dx.doi.org/10.4314/jagrenv.v19i2.12.

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Field experiments were conducted between 2004 and 2006 at the Institute for Agricultural Research Farm, Samaru Zaria in the Northern guinea savannah ecological zone of Nigeria, to study the response of chilli pepper (Capsicum frutescence L.) to sheep manure, plant population and nitrogen levels. Treatments evaluated consisted of four levels of sheep manure rates (0 t, 5 t, 10 t, and15 t ha-1), three plant populations (22,222; 44,444; and 66,666 plants ha1) and four rates of Nitrogen (0kg,60kg 120kg and 180 kg N ha1). The treatments were laid out in a split plot design and replicated three time

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Magaji, M. J., I. B. Buji, and I. Z. Talha. "DEVELOPMENT AND EVALUATION OF PEDOTRANSFER FUNCTIONS FOR ESTIMATING CATION EXCHANGE CAPACITY OF SOILS IN KADUNA STATE, NIGERIA." JOURNAL OF ARID AGRICULTURE Vol. 26, no. 1 (2025): 114–23. https://doi.org/10.63659/jaa.v26i1.77.

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Investigation of soil properties like Cation Exchange Capacity (CEC) plays important roles in agricultural production and environmental researches, which led to development of indirect methods in estimation of this soil characteristic. Laboratory procedures for estimating CEC are cumbersome, expensive, and time-consuming, it is essential to develop an indirect approach such as Pedotransfer functions (PTFs) for the prediction of this parameter from more readily available soil data. The aim of this study was to develop various PTFs models for estimating CEC in soils, and to select the best model

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Adeoye, Olubusola Temitope, Olufemi Richard Pitan, Kehinde Olutoyin Ademolu, Akinola Rasheed Popoola, Bridget Bobadoye, and Akinkunmi Olukemi Yetunde. "Morphological variations in Nigerian Apis mellifera Linnaeus, 1758 populations in Guinea savannah agro-ecological zone." Polish Journal of Entomology 90, no. 4 - Ahead of print (2021): 223–35. http://dx.doi.org/10.5604/01.3001.0015.6646.

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Apis mellifera Linnaeus, 1758 is one of the most economically valuable insects which plays significant role in human medicine, nutrition and crop pollination. The morphometric variations of honeybee from different locations of the southern guinea and northern guinea savannah ecological zone of Nigeria were studied. Fifteen morphological traits were measured for variation on six hundred (600) worker honeybee samples purposively collected from ten different locations within the ecological zone. Data collected were subjected to one-way Analysis of Variance (ANOVA), SNK test (α=0.05) and Pearson c

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Hanna, Rachid, Désiré Gnanvossou, Georg Goergen, et al. "Efficiency of Food-Based Attractants for Monitoring Tephritid Fruit Flies Diversity and Abundance in Mango Systems Across Three West African Agro-Ecological Zones." Journal of Economic Entomology 113, no. 2 (2019): 860–71. http://dx.doi.org/10.1093/jee/toz338.

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Abstract Food baits are effective and widely used tools for monitoring diversity and abundance of tephritid fruit flies. Four food-baits—Nulure, BioLure, Mazoferm at 3 and 6%, and Torula yeast—were used in multi-lure traps over a 4-yr period in mango orchards in three Benin agro-ecological zones (AEZ) representing a large swath of environments in western Africa. Twelve tephritid fruit fly species were captured during the trials, with the highest richness in the Forest Savannah Mosaic (FSM), followed by the Southern Guinea Savannah (SGS), and the Northern Guinea Savannah (NGS) AEZ. Despite prev

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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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Ayo, J. O., J. A. Obidi, and P. I. Rekwot. "Effects of Heat Stress on the Well-Being, Fertility, and Hatchability of Chickens in the Northern Guinea Savannah Zone of Nigeria: A Review." ISRN Veterinary Science 2011 (June 14, 2011): 1–10. http://dx.doi.org/10.5402/2011/838606.

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The paper examines heat stress and its adverse effects as a hindrance to profitable poultry production in the tropics, with emphasis on the Northern Guinea Savannah zone of Nigeria. It elucidates the general negative effects of heat stress on physiological parameters of domestic chickens, and the specific impact of the stress on reproduction in the tropics. The deleterious effects are expressed in poor poultry well-being and reproductive performance. It is concluded that measures aimed at alleviating heat stress in domestic chickens must be adopted in order to enhance reproductive and, consequ

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Duniya, K., and I. Adinah. "Probit Analysis of Cotton Farmers’ Accessibility to Credit in Northern Guinea Savannah of Nigeria." Asian Journal of Agricultural Extension, Economics & Sociology 4, no. 4 (2015): 296–301. http://dx.doi.org/10.9734/ajaees/2015/13538.

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Kudi, A. C., D. J. U. Kalla, M. C. Kudi, and H. Yusuf. "Serological survey of brucellosis in traditionally managed domestic fowl in northern Guinea savannah, Nigeria." World's Poultry Science Journal 53, no. 3 (1997): 287–89. http://dx.doi.org/10.1079/wps19970023.

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Isiaka, Sodimu. "Ecological and Economic Potential of Eucalyptus camaldulensis and Mangifera indica Trees for Sustainable Apiculture in Kaduna Northern Guinea Savannah Ecozone, Nigeria." Mbeya University of Science and Technology Journal of Research and Development 6, no. 2 (2025): 1–6. https://doi.org/10.62277/mjrd2025v6i20008.

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Apiculture, which is the act of rearing, breeding and managing honeybee colonies in artificial hives for economic gains, leads to the production of valuable materials such as honey, bee wax, propolis, bee pollen, bee venom and royal jelly. Interest in bees started with the hunting of wild colonies in hollow cavities of trees or rocks. The ecological and economic potential of E. camaldulensis and M. indica trees for sustainable apiculture in the Kaduna Northern Guinea Savannah Ecozone, Nigeria, was studied. 10 Kenya top bar hives were randomly placed in each of the plantations with 95% dominanc

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PARNABY, HARRY E., ANDREW G. KING, STEVE HAMILTON, and MARK D. B. ELDRIDGE. "A new species of lobe-lipped bat (Chalinolobus: Vespertilionidae) from southern Papua New Guinea." Zootaxa 5492, no. 3 (2024): 301–24. http://dx.doi.org/10.11646/zootaxa.5492.3.1.

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The Hoary Bat Chalinolobus nigrogriseus is the only species of the genus known from the island of New Guinea. A new species of Chalinolobus from Papua New Guinea is described based on DNA sequence and morphological criteria using material previously assigned to C. nigrogriseus. The new species most resembles the eastern Australian subspecies of the Hoary Bat C. n. nigrogriseus in general size and appearance but is easily distinguished by an enlarged, rather than rudimentary lobe at the terminal outer ear margin. The new species might also be confused on external characters with smaller individ

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Osinowo, Adekunle Ayodotun, Emmanuel Chilekwu Okogbue, Stephen Bunmi Ogungbenro, and Olugbenga Fashanu. "Analysis of Global Solar Irradiance over Climatic Zones in Nigeria for Solar Energy Applications." Journal of Solar Energy 2015 (October 12, 2015): 1–9. http://dx.doi.org/10.1155/2015/819307.

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Satellite derived solar irradiance over 25 locations in the 5 climatic zones of Nigeria (tropical rainforest TRF, Guinea savannah GS, Sahel savannah SHS, Sudan savannah SUS, and Mangrove swamp forest MSF) was analyzed. To justify its use, the satellite data was tested for goodness of agreement with ground measured solar radiation data using 26-year mean monthly and daily data over 16 locations in the 5 climatic zones. The well-known R2, RMSE, MBE, and MPE statistical tests were used and good agreement was found. The 25 locations were grouped into the 5 climatic zones. Frequency distribution of

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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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Yahaya, Adama, Danladi B. Dangora, P. Lava Kumar, Matthew D. Alegbejo, Lori Gregg, and Olufemi J. Alabi. "Prevalence and Genome Characterization of Field Isolates of Sugarcane Mosaic Virus (SCMV) in Nigeria." Plant Disease 103, no. 5 (2019): 818–24. http://dx.doi.org/10.1094/pdis-08-18-1445-re.

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Maize and sugarcane are two economically important crops often grown in adjacent fields or co-cultivated in the northern guinea savannah agroecological zone, a major cereal production region of Nigeria. This study was conducted to determine the prevalence of mosaic disease in sugarcane and maize fields in the northern guinea savannah agroecological zone and to molecularly characterize the associated sugarcane mosaic virus (SCMV, genus Potyvirus) isolates. Surveys were conducted from June to July 2015, and sugarcane mosaic disease (SCMD) incidence was assessed across 21 farmer’s fields. Mean SC

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Nwokolo, Samuel, and Julie Ogbulezie. "Estimation of direct normal irradiance under various sky condi-tions in data sparse tropical ecological zones in Nigeria." International Journal of Advanced Astronomy 5, no. 2 (2017): 90. http://dx.doi.org/10.14419/ijaa.v5i2.8329.

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In this study, models for estimating direct normal irradiance (Hb) under various sky conditions in data sparse tropical ecological zones in Nigeria were fitted. The evaluated values of clearness index indicate that the prevailing sky condition in the southern tropical zones is heavily overcast while the northern zones experience partly overcast under all sky conditions. From the analyses of the influences of clearness index on Hb, it was observed that higher values of Hb were recorded in the far north zone of Sahel savannah (FNZSS) of Sokoto while lower values were registered in the far south

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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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dos, Reis-Silva Francisco, Fernanda Alves-Martins, Javier Martínez-Arribas, et al. "Amphibian and reptile dataset across different land-use types in Guinea-Bissau, West Africa." Biodiversity Data Journal 13 (April 24, 2025): e147388. https://doi.org/10.3897/BDJ.13.e147388.

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West Africa is exceptionally biodiverse, yet its wildlife remains largely understudied despite the rapid and ongoing land-use changes. Large swaths of Guinea-Bissau's landscape were historically characterised by native forest-savannah mosaics. However, key areas of savannah habitats have been converted to rice agroecosystems and forests are being transformed into cashew monocultures at unprecedented rates. Amphibians and reptiles comprise some of the most threatened species by human-induced habitat change and yet are not as studied as other vertebrate terrestrial taxa. Here, we provide two com

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S.S, Indabo, Muhammad H.U, Aliyu A, Sakariyahu S.K, Ahmed H.O, and Aliyu R.E. "Influence of temperature regimes on drought stress tolerance of cowpea genotypes in Northern Guinea savannah, Nigeria." Biological and Environmental Sciences Journal for the Tropics 20, no. 3 (2024): 27–38. http://dx.doi.org/10.4314/bestj.v20i3.3.

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Drought is a major constraint that affects cowpea production in Zaria, Nigeria. It is unpredictable, and occurs at any growth stage of cowpea. Changes in global climatic trendsare consistently narrowing the cowpea growing season in Northern Nigeria by graduallypushing its cultivation towards drought-prone, colder temperatures. The study aimed to elucidate foresight data on the tolerance of cowpea landraces to drought at cold and hottemperatures in a bid to harness available germplasm towards mitigating climatic changes.Seedling drought tolerance of four hundred and twenty-two (422) cowpea geno

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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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Ibrahim, H. Y., and O. A. Omotesho. "Assessment of the Sustainability of Vegetable Production under Fadama in Northern Guinea Savannah Zone of Nigeria." Asia-Pacific Journal of Rural Development 20, no. 2 (2010): 81–90. http://dx.doi.org/10.1177/1018529120100206.

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Gómez-Dans, Jose Luis, Philip Edward Lewis, Feng Yin, et al. "Location, biophysical and agronomic parameters for croplands in northern Ghana." Earth System Science Data 14, no. 12 (2022): 5387–410. http://dx.doi.org/10.5194/essd-14-5387-2022.

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Abstract. Smallholder agriculture is the bedrock of the food production system in sub-Saharan Africa. Yields in Africa are significantly below potentially attainable yields for a number of reasons, and they are particularly vulnerable to climate change impacts. Monitoring of these highly heterogeneous landscapes is needed to respond to farmer needs, develop an appropriate policy and ensure food security, and Earth observation (EO) must be part of these efforts, but there is a lack of ground data for developing and testing EO methods in western Africa, and in this paper, we present data on (i)

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Yahaya, Damba, Nicholas Denwar, and Matthew W. Blair. "Effects of Moisture Deficit on the Yield of Cowpea Genotypes in the Guinea Savannah of Northern Ghana." Agricultural Sciences 10, no. 04 (2019): 577–95. http://dx.doi.org/10.4236/as.2019.104046.

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Onyeanusi, B. I., A. A. Adeniyi, C. G. Onyeanusi, J. O. Ayo, and C. S. Ibe. "A Study of the Kidney of the Wistar Rat in Northern\ Guinea Savannah Zone: the Morphometric Aspect." Pakistan Journal of Nutrition 8, no. 7 (2009): 1040–42. http://dx.doi.org/10.3923/pjn.2009.1040.1042.

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Aminuwa, Hyelamada Abuh, Adeniyi Kamoru Abdulazeez, Shehu Ibrahim Kura, and Bisong Okpata Otu. "Assessing Apicultural Practices and Bee Species Identification from Northern and Southern Guinea Savannah zones of Niger State." Direct Research Journal of Agriculture and Food Science 12, no. 3 (2024): 65–72. http://dx.doi.org/10.26765/drjafs24664303.

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Bodunde, J. G., J. D. Olarewaju, and I. D. Erinle. "Tomato response to planting arrangement types during dry-hot seasons in the northern Guinea savannah of Nigeria." Scientia Horticulturae 48, no. 3-4 (1991): 337–40. http://dx.doi.org/10.1016/0304-4238(91)90144-n.

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Mohammed, Saba B., Ishiyaku F. Mohammad, Tongoona B. Pangirayi, et al. "Farmers’ knowledge, perception, and use of phosphorus fertilization for cowpea production in Northern Guinea Savannah of Nigeria." Heliyon 6, no. 10 (2020): e05207. http://dx.doi.org/10.1016/j.heliyon.2020.e05207.

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Obasi, Sunday Nathaniel, Grace E. Jokthan, Chiamaka Chinasa Obasi, and Chike Onyeka Madueke. "MICRONUTRIENT DYNAMICS IN RELATION TO SOIL PROPERTIES IN ARABLE SOILS OF RIGACHIKUN-KADUNA, NORTHERN GUINEA SAVANNAH, NIGERIA." Journal CleanWAS 6, no. 1 (2022): 14–22. http://dx.doi.org/10.26480/jcleanwas.01.2022.14.22.

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The research was conducted within January 2020 – January 2021 at the arable soils of Rigachikun-Kaduna, Northern Guinea Savanna and intended to study the micronutrient dynamics and relationships with some studied soil properties. Previously harvested maize, cowpea and rice soils (designated as Locations A, B and C respectively) were delineated, and three profile pits dug in each along the line of transect of about 100 m apart. A total of nine profile pits were dug in the three delineations and samples collected from each pit according to their horizonations. The use of Digital Elevation Model

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Shehu, A., Kadafur, M. I., and Goni, I. C. "VALIDITY OF SELF-REPORT TO MEASURE FARM SIZE: EVIDENCE FROM NORTHERN GUINEA SAVANNAH OF BORNO STATE, NIGERIA." Journal of Agripreneurship and Sustainable Development 3, no. 4 (2020): 91–98. http://dx.doi.org/10.59331/jasd.v3i4.163.

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The study was explored to examine the validity of self-report to measure farm size: Evidence from Northern Guinea Savannah of Borno State, Nigeria. Multi-stage sampling procedure was used to select 667 respondents. The data were collected using Universal Transverse Mercator (UTM-area) direct measure and interview of a household head. Data were analysed using both descriptive statistics (count, percentage and mean) and inferential statistics (multiple regression and intra-class correlation). The results found the F-value of 2.7778 significant at P≤0.001implying that the model was reliable; and

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Julius, Kehinde A., and Richard A. Balogun. "Characteristics and Distribution of Some Radiation Parameters over Nigeria." European Journal of Environment and Earth Sciences 3, no. 4 (2022): 32–40. http://dx.doi.org/10.24018/ejgeo.2022.3.4.255.

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This study examined the distribution and characteristics of Surface Solar Radiation Downward (SSRD), sunshine duration, cloudiness index, relative humidity, temperature, and wind speed from the archive of the NASA Power project between the years 2010 and 2020 over Nigeria using 37 stations. The datasets were subjected to monthly and seasonal analysis over three climatic zones in Nigeria. The results show that the SSRD of the Sahel is generally higher than that of the Savannah and Guinea Coast. Sunshine duration was found to increase seasonally and from south to north. From the extreme edge of

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Ake, Ake. "Effects of transportation and thermal stress on donkeys in the Northern Guinea Savannah zone of Nigeria: A review." Journal of Cell and Animal Biology 7, no. 8 (2013): 92–101. http://dx.doi.org/10.5897/jcab2013.0370.

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Makun, H. J., J. O. Ajanusi, O. W. Ehoche, C. A. M. Lakpini, and S. M. Otaru. "Growth Rates and Milk Production Potential of Sahelian and Red Sokoto Breeds of Goats in Northern Guinea Savannah." Pakistan Journal of Biological Sciences 11, no. 4 (2008): 601–6. http://dx.doi.org/10.3923/pjbs.2008.601.606.

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Obaje, J. A., F. B. Ciroma, and S. A. Obaje. "Suitability Analysis of Compressed Earth Bricks (CEB) for Sustainable Housing Delivery in Guinea Savannah Zone of Northern Nigeria." Environmental Technology and Science Journal 13, no. 1 (2022): 73–84. http://dx.doi.org/10.4314/etsj.v13i1.6.

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In meeting housing delivery challenges in Nigeria, there is an urgent need to develop materials and technologies that are cost effective, eco-friendly, having good user perception and showcasing cultural heritage. The study evaluated the compressed earth bricks (CEB) and sandcrete blocks sustainability as building materials. Structured questionnaires were administered to professionals (Architects, Structural Engineers and Builders) in Kaduna State to establish the awareness level, application and sustainability qualities of CEB as compared to sandcrete blocks. Laboratory tests were conducted o

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