Isong Abraham Isong
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View article: Delineating Soil Management Zones for Site-Specific Nutrient Management in Cocoa Cultivation Areas with a Long History of Pesticide Usage
Delineating Soil Management Zones for Site-Specific Nutrient Management in Cocoa Cultivation Areas with a Long History of Pesticide Usage Open
Delineating soil management zones in cocoa cultivation areas can help optimize production and minimize ecological and environmental risks. This research assessed the spatial distribution of heavy metal concentration and soil fertility indi…
View article: Characterization of the Sahelian and Guinea Savannah ecosystem of Nigeria based on land surface temperature and normalized difference vegetation index
Characterization of the Sahelian and Guinea Savannah ecosystem of Nigeria based on land surface temperature and normalized difference vegetation index Open
Drought and desertification are expected to increase in Sahelian Africa, where there are significant rainfall deficits and extreme temperatures. This study examined the trends in vegetation and climate variables during the period 1986–2023…
View article: Review of: "Spatial Analysis of Soil Fertility Using Geostatistical Techniques And Artificial Neural Networks"
Review of: "Spatial Analysis of Soil Fertility Using Geostatistical Techniques And Artificial Neural Networks" Open
The statement "digital mapping model of local fertility classes " and " adjusted to soil status " in the second paragraph in the abstract are not scientifically clear.Recast.Remove % from Clay and silt
View article: Co-application of Neem-based biochar with poultry manure and its implications for sustainable production of cucumber (Cucumis sativus Linn.) in humid tropical soil
Co-application of Neem-based biochar with poultry manure and its implications for sustainable production of cucumber (Cucumis sativus Linn.) in humid tropical soil Open
Corn (Zea mays L.) growth, nutrient uptake and soil fertility improvement of strongly acidic soil applied with biochar and animal manureReuben James Cillo Rollon, Penny Lane Bitoy Malig-on, Perlene Renegado Guindang, Ronald Villamor Dolori…
View article: Soil quality estimation using environmental covariates and predictive models: an example from tropical soils of Nigeria
Soil quality estimation using environmental covariates and predictive models: an example from tropical soils of Nigeria Open
View article: Assessing the impact of sampling strategy in random forest-based predicting of soil nutrients: a study case from northern Morocco
Assessing the impact of sampling strategy in random forest-based predicting of soil nutrients: a study case from northern Morocco Open
In this work, we tested different combinations of sampling strategies, random sampling and conditioned Latin Hypercube sampling (cLHS)] and sample ratios (10% = 147 and 25% = 368) to predict soil phosphorus and potassium contents, previous…
View article: Mapping soil nutrients via different covariates combinations: theory and an example from Morocco
Mapping soil nutrients via different covariates combinations: theory and an example from Morocco Open
View article: Do model choice and sample ratios separately or simultaneously influence soil organic matter prediction?
Do model choice and sample ratios separately or simultaneously influence soil organic matter prediction? Open
View article: Performance and Dry Matter Accumulation of Groundnut in an Ultisol Amended with Phosphorus and Lime
Performance and Dry Matter Accumulation of Groundnut in an Ultisol Amended with Phosphorus and Lime Open
Background and Objective: Adequate yield improvement in groundnut may not be achieved in acid sand Ultisol through the application of mineral phosphorus alone, however, a combined application of lime and phosphorus fertilizer may be…
View article: Spatial Assessment of Heavy Metal Contamination in Agricultural Soils Developed on Basaltic and Sandstone Parent Materials
Spatial Assessment of Heavy Metal Contamination in Agricultural Soils Developed on Basaltic and Sandstone Parent Materials Open
View article: ESTIMATION OF SOIL ORGANIC CARBON DISTRIBUTION BY GEOSTATISTICAL AND DETERMINISTIC INTERPOLATION METHODS: A CASE STUDY OF THE SOUTHEASTERN SOILS OF NIGERIA
ESTIMATION OF SOIL ORGANIC CARBON DISTRIBUTION BY GEOSTATISTICAL AND DETERMINISTIC INTERPOLATION METHODS: A CASE STUDY OF THE SOUTHEASTERN SOILS OF NIGERIA Open
Soil organic carbon (SOC) plays a significant role in ecosystem protection and sustainable agriculture.The present study aims to estimate the spatial distribution of SOC using three different interpolation methods: ordinary kriging (OK), c…
View article: Using Machine Learning Algorithms to Estimate Soil Organic Carbon Variability with Environmental Variables and Soil Nutrient Indicators in an Alluvial Soil
Using Machine Learning Algorithms to Estimate Soil Organic Carbon Variability with Environmental Variables and Soil Nutrient Indicators in an Alluvial Soil Open
Soil organic carbon (SOC) is an important indicator of soil quality and directly determines soil fertility. Hence, understanding its spatial distribution and controlling factors is necessary for efficient and sustainable soil nutrient mana…
View article: Yield Performance and Leaf Nutrient Composition of Bambara Groundnut Under Arbuscular Mycorrhizal Inoculation in a Poultry Manure Amended Ultisol
Yield Performance and Leaf Nutrient Composition of Bambara Groundnut Under Arbuscular Mycorrhizal Inoculation in a Poultry Manure Amended Ultisol Open
The results of this study showed that soil inoculated with Glomus clarum and Gigaspora gigantea and amended with 8 and 12 tons ha-1 of poultry manure in single or combination were more efficient and consistent in the enhancement of growth …
View article: Improvement of Chemical Properties of Ultisol Affected by Arbuscular Mycorrhizal Fungal Inoculation and Poultry Manure Application
Improvement of Chemical Properties of Ultisol Affected by Arbuscular Mycorrhizal Fungal Inoculation and Poultry Manure Application Open
View article: Influence of Biofertilizer on Soil Properties, Growth and Yield of Hot Pepper (Capsicum frutescens) in Calabar, Cross River State, Nigeria
Influence of Biofertilizer on Soil Properties, Growth and Yield of Hot Pepper (Capsicum frutescens) in Calabar, Cross River State, Nigeria Open
Background and Objective: The inability of NPK fertilizer to optimize crop yield over a long time without environmental pollution prompted this study on bio-fertilizer production through anaerobic digestion utilizing cow dung (C), banana (…
View article: Agricultural potentials of floodplain soils with contrasting parent material in Cross River State, Nigeria
Agricultural potentials of floodplain soils with contrasting parent material in Cross River State, Nigeria Open
This paper reports the soil properties and agricultural potential of floodplain soil in Obufa Esuk Orok, Calabar and Awi, Akamkpa, Cross River State and characterized the soils to develop a baseline for soil improvement and increased agric…
View article: Performance of Mungbeans (Vigna radiata (L) Willczek) in Soil Amended with Oil Palm Bunch Ash and Poultry Manure in Humid Tropical Environment of South Eastern Nigeria
Performance of Mungbeans (Vigna radiata (L) Willczek) in Soil Amended with Oil Palm Bunch Ash and Poultry Manure in Humid Tropical Environment of South Eastern Nigeria Open
Aim: A study was conducted to evaluate supplementary effects of oil palm bunch ash (OPBA) and poultry manure (PM) on the growth and yield performance of mungbeans.
Study Design: The study used a 3 x 3 factorial experiment laid out in rand…
View article: Characterization of physico-chemical properties and micronutrients status of soil developed on Anantigha Coastal Marine Sediment in Calabar
Characterization of physico-chemical properties and micronutrients status of soil developed on Anantigha Coastal Marine Sediment in Calabar Open
A study was carried out to characterize the physico-chemical properties and micronutrients status of soil developed on Anantigha coastal marine sediment in Calabar. Four profile pits were dug along the coastal area and soil samples taken f…
View article: Comparative assessment of wetland and coastal plain soils in Calabar, Cross River State
Comparative assessment of wetland and coastal plain soils in Calabar, Cross River State Open
The comparative assessment of wetland and coastal plain soils for agricultural productivity were studied. The investigation was carried out in two areas: Atimbo and Obufa Esuk in Calabar, Cross River State. The dominant particle size in bo…
View article: Tillage Methods and Poultry Manure Application Effects on the Growth and Yield of Groundnut (Arachis hypogaea L.) in Calabar, Nigeria
Tillage Methods and Poultry Manure Application Effects on the Growth and Yield of Groundnut (Arachis hypogaea L.) in Calabar, Nigeria Open
Background and Objective: Developing suitable tillage practices and sustainable soil fertility options are important components of any soil management programme aimed at the enhancement of the production and productivity of food crops whic…