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    Effects of commercial organic fertilizer and poultry manure on soil properties, yield and proximate composition of radish (Raphanus sativus L.)
    (Agriculture, Food and Natural Resources Journal, 2025-09-30) Adebayo Abayomi OLOWOAKE; Abisoye Oyepero OJO; Ade Isaac AFE; James Adebayo OJO; Khadijat Oyebisi ALABI; Adesina Abudlkabir WAHAB; Toyeeb Abayomi ABIOYE; Stephen Kayode SUBAIR
    Organic fertilizer is known for its ability to improve soil fertility and enhance the availability of nutrients to the plant. To examine the impacts of commercial organic fertilizer (Agrodyke) and poultry manure on soil parameters, yield, and the proximate composition of radish (Raphanus sativus), as well as residual effects, a pot experiment was carried out at Bukola Farm in Oke Oyi, Kwara State, Nigeria. Ten treatments were used in the experiment: Control (T0), Agrodyke 10g (T1), Agrodyke 20g (T2), and Agrodyke 30g (T3) in 1.5, 3, and 4.5 litres of water respectively, Poultry manure – 90 kgN/ha (T4), poultry manure – 100 kgN/ha (T5), poultry manure – 110 kgN/ha (T6), poultry manure – 120 kgN/ha (T7), poultry manure – 130 kgN/ha (T8), and NPK (T9). Three replicates were used in the completely randomized design (CRD) of the experiment. Data collected were subjected to analysis of variance (ANOVA), and differences in the treatment means were separated using Duncan's Multiple Range Test (DMRT) at 5 % level of significance. Application of poultry manure at 130 kg N/ha (T8) resulted in maximum values of growth and yield attributes, viz., number of leaves (15.1), stem girth (32.39 mm), root yield (126.8 g), and leaves weight (47.4 g). The residual nutrients and proximate composition, viz., ash, moisture content, crude fiber, and crude fat, in roots were also reported maximum by the application of poultry manure at 130 kg N/ha. Therefore, it can be concluded that using poultry manure increased radish quality and had better residual nutrients than NPK and Agrodyke organic fertilizer.
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    Land Use Change and Its Impact on Soil Carbon Pools: A Case Study of Teaching & Research Farm, Malete and Sobi Forest, Ilorin
    (East African Journal of Environment and Natural Resources, 2025-11-27) Alabi, K. O.,; Hassan, F. I.,; Afe, A. I.; Saka, H. A.
    Land use change has emerged as a significant environmental concern, particularly in terms of soil carbon pools and ecosystem sustainability. This study investigated the impact of land use change on soil carbon pools through a comparison of soils from the Teaching and Research Farm, Malete (cultivated land) and the Sobi Forest, Ilorin (undisturbed forest land). Soil samples were collected at three depths (0–20 cm, 20–40 cm, and 40–60 cm) and analysed for particle size distribution, pH, electrical conductivity, bulk density, organic and inorganic carbon, and labile and non-labile carbon fractions. Results showed that forest soils had a sandy clay loam texture with lower bulk density (0.86 – 1.10 g/cm³) and higher organic carbon (0.24 -0.82 %), whereas cultivated soils had a sandy loam texture with higher bulk density (1.08–1.26 g/cm³) and lower organic carbon (0.14 -0.48 %). Total carbon was significantly higher in forest soils (7.46 % at 40–60 cm) compared to cultivated soils (5.65 % at 40–60 cm). Labile carbon also followed this pattern, with forest soils recording 1.66 mg/g at the surface layer versus 1.24 mg/g for cultivated soils. These findings highlight that forest-to-agriculture conversion leads to soil carbon depletion, structural degradation, and potential increases in atmospheric CO₂. The study underscores the importance of sustainable land management practices to preserve soil health and mitigate climate change.
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    FARMERS’ KNOWLEDGE OF HEALTH AND SOCIO-ECONOMIC BENEFITS OF ORANGE FLESHED SWEET POTATO IN KWARA STATE, NIGERIA.
    (FUDMA Journal of Agriculture and Agricultural Technology, 2023-12-01) Olatinwo Latifa Kehinde; Yusuf Olayinka Jelili; Ambali Olatunji Yusuf; Abdulrahman Ololade Latifat; Wahab Adesina Abudlkabir; Komolafe S. E.; Ajao K. O.
    The socio-economic and health benefits of Orange Flesh Sweet Potato (OFSP) were the foremost and scientifically proven advantages of cultivation and consumption OFSP respectively. The present study seeks to understand farmers’ knowledge of health and socio-economic benefits of orange fleshed sweet potato in Kwara State, Nigeria. A total of 139 sweet potato farmers were sampled. A structured questionnaire was used to collect primary data. Data collected were analyzed with frequency count, percentages, mean, standard deviation and Pearson Product Moment Correlation (PPMC). Findings showed that majority (87.1%) had knowledge of socio-economic benefits of growing OFSP. Most of the respondents (63.3%) had moderate knowledge of the socio-economic benefits of growing OFSP. The respondents agreed that consumption of OFSP improve digestion (46.8%), boost immune system (31.7%) and improve vision (12.2%). Respondents additionally agreed that growing OFSP had mainly increased household income (34.5%), improved food security (47.5%) and increased participation in social activities (33.1%). Inadequate access to planting materials (79.1%) was the leading challenges to growing OFSP. PPMC analysis indicated that household size, family members involved in farming, years of experience, number of plots, income and knowledge of OFSP were the factors that influence farmers’ perception on health/socioeconomic benefits of OFSP at p≤0.05 level of significance. This study concluded that farmers had moderate knowledge level on health and socio-economic benefits of cultivating and consumption of OFSP. Therefore, agricultural extension agents should intensify efforts in the supply of planting materials and enlightenment of health benefits for improved vision.
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    Assessment of Land degradation vulnerability of University Teaching and Research farm, Malete, using geospatial technique
    (NOUN Journal of Agricultural Research and Development (NJARD), 2025-06-30) Alabi, K. O; Abubakar A. G.; Tobore, A. O.; Afe, A. I.
    Vulnerability Assessment of Malete soil to degradation was carried out through the use of spatial techniques. The assessment of physical, chemical, and biological degradation of soils as well as the causes of this degradation is covered. Low inherent fertility status of these soils was found by analysis of chemical and physical parameters. Using satellite data, four main land cover classifications were identified. According to the results of the land cover changes, cropland and water bodies have expanded by 24% (5.3 sq m) and 32% (7.1 sq km), respectively, while fallow land and sparse vegetation have reduced by 20% (4.5 sq km) and 23% (5.2 sq km), respectively. The vulnerability assessment map showed that only the Operation Feed Yourself farm (OFY) block (Red Signature (6.4-7.0%)) has a low sensitivity to land degradation, followed by blocks 3 (Lemon signature (7.5-8.1%), 4 (Orange signature (7.0-7.5%), and block 2A (Green signature (8.1-9.0%)). A sustainable, non-degrading agricultural system can be maintained by better planning for soil conservation in high degradation risk locations. There should be more education for farmers about the kind of land they farm. According to the study, land should be given some time to rest so that nutrients can be regained. It is advisable to promote the usage of organic or animal matter as a natural fertilizer. Planting grasses and leguminous plants will improve the soil's fertility in the area. This is true because it always costs more to restore damaged soil or land to its original productive usage than it does to stop it from happening in the first place.
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    Characterization and pedogenetic study of soils of Onigambari Forest Reserve in South-West Nigeria.
    (Technoscience Journal for Community Development in Africa, 2024-11-24) Khadijat Oyebisi Alabi; Bola Senjobi; Godwin Anjorin Ajiboye; Clement Olabinjo Adeofun
    The use of forest resources requires accurate knowledge of land and soil properties. This necessitates detailed soil description and classification. This study was conducted to characterize and classify pedogenesis of Onigambari Forest Reserves in south-west Nigeria. Astandard flexible rigid-grid method of survey was used to establish the mapping units. Three profile pits were dug under each land use type (Teak and Gmelina plantations), making six pits in the location. The profile pits were sampled at the pedogenic horizons for physical and chemical properties analyses. Soils obtained were classified using standard methods. The soils were classified as order Alfisols. Based on the moisture regimes, the soil belongs to Udalfs and Aqualfs suborder. At the great group level, the soil fell into the Kandic horizon. Under teak plantation, pedons 1 and 2 were classified as Plinthic Kandiudalfs (Eutric Lixisols), pedon 3 as Arenic Kandiaqualfs (Gleyic Lixisols) while under Gmelina, pedon 4 was classified as Typic Hapludalfs (Ferric Lixisols), pedon 5 Typic Kandiudalfs (EutricLixisols) and pedon 6 TypicKanhapluaqualfs (Gleyic Lixisols). At the soil series levels, pedons 1, 2, 4 and 5 belonged to Gambari series, pedons 3 and 6 belonged to Apomu series. Pedogenic processes identified were leaching, plinthization and desilication processes.