Emmanuel Amoakwah

Emmanuel Amoakwah
CSIR - Soil Research Institute · Analytical and Applied Chemistry (Soil, Plant and Water)

Doctor of Philosophy

About

31
Publications
3,813
Reads
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155
Citations

Publications

Publications (31)
Article
Microbial biomass and its activity influence soil quality to sustain crop productivity. A field experiment was conducted to investigate changes in soil microbial community structure, enzyme activities, and associated biological properties in response to biochar application in a tropical ecosystem. The treatments included control/no biochar (CT), 15...
Article
Microbial biomass and its activity influence soil quality to sustain crop productivity. A field experiment was conducted to investigate changes in soil microbial community structure, enzyme activities, and associated biological properties in response to biochar application in a tropical ecosystem. The treatments included control/no biochar (CT), 15...
Article
A field experiment was conducted in 2019 (minor season) and 2020 (major season) to study soil properties and net income response to inorganic NPK fertilizer and biochar application for maize production. The experiment was made up of 2 × 3 factorial combinations of biochar (0 kg ha⁻¹, 2000 kg ha⁻¹) and inorganic NPK fertilizer (0:0:0 kg NPK ha⁻¹, re...
Article
Soil labile carbon (C) and nitrogen (N) are considered to be sensitive indicators of changes in soil C and N pools in response to management practices. A field experiment was conducted to evaluate the effect of corn cob biochar application on C and N management and lability. There were four treatments with four replicates established in a randomize...
Article
Full-text available
The antioxidant glutathione (GSH) mitigates adverse physio-metabolic effects and defends against abiotic types of stress, such as cadmium (Cd) stress. However, its function and role in resisting Cd phytotoxicity by leveraging plant antioxidant-scavenging, redox-regulating, and hormone-balancing systems have not been comprehensively and systematical...
Article
Full-text available
Article Info Deforestation for conventional farming has affected soil quality (SQ) worldwide. The goal of our study was to evaluate the impact of land use change, from forest to subsistence farming, on SQ in Benin. Composite soils from forest, horticultural, agricultural, fallow, and degraded lands were collected to analyze for chemical and physica...
Article
Worldwide demand for gold has accelerated unregulated, small-scale artisanal gold mining (AGM) activities, which are responsible for widespread environmental pollution in Ghana. This study was conducted to assess the impact of AGM activities, namely the heavy metals pollution of soil-water-vegetative ecosystems in southern Ghana. Composite soil, st...
Article
Full-text available
Purpose: Humic substances, which are integral components of total organic carbon (TOC), influence soil quality. The study aimed to investigate whether humic and non-humic fractions exhibit early, consistent, and measurable changes and affect TOC sensitivity and storage in a tropical sandy loam soils amended with corn cob biochar. Materials and me...
Article
Worldwide demand for gold has accelerated unregulated, small-scale artisanal gold mining (AGM) activities, which are responsible for widespread environmental pollution in Ghana. This study was conducted to assess the impact of AGM activities, namely the heavy metals pollution of soil-water-vegetative ecosystems in southern Ghana. Composite soil, st...
Poster
Full-text available
This poster is about the effects of corn cob biochar on the stability of soil aggregates and aggregate-associated carbon and nitrogen
Poster
Full-text available
This study assessed the effect of corn cob biochar on aggregate strength of a tropical sandy loam.
Article
Soil structure is a key soil physical property that affects soil water balance, gas transport, plant growth and development, and ultimately plant yield. Biochar has received global recognition as a soil amendment with the potential to ameliorate the structure of degraded soils. We investigated how corn cob biochar contributed to changes in soil wat...
Poster
Full-text available
Poster presentation of the WEBSOC project on Biochar, irrigation and value chain creation for small farmers in Ghana
Poster
Full-text available
Presentation of the WEBSOC project on Biochar, irrigation and value chain creation for small farmers in Ghana
Article
Most tropical soils are highly weathered and are vulnerable to soil erosion because of their poor aggregate characteristics. Soil aggregate characteristics are critical indicators of soil structural stability, and they have the propensity to influence soil physical behavior and functioning. In this study, we investigated the effect of corn cob bioc...
Conference Paper
Full-text available
The White Volta Basin has some of the poorest and most food insecure communities in Ghana. This is partly due to water scarcity, which is characterized by long dry spell in this area; most farmers solely depend on rainfall (which is highly variable and erratic) for food production. This affects food security with its resultant effect on high povert...
Article
Full-text available
Soil fertility decline is a major biophysical constraint to crop production in Sub-Saharan Africa. Therefore, there is an urgent need for sustainable soil fertility replenishment strategies to improve soil quality for enhanced crop production. In a laboratory incubation experiment, biochar (2% and 5%) and cow dung (20 tons ha-1) were applied singly...
Article
Full-text available
The use of conventional methods to clean up the soil is very expensive and destructive to the ecosystem. The concept of phytoextraction has been introduced to safely manage soils contaminated with heavy metals. However, using plants to remediate polluted soils is a lengthy process. This has necessitated the use of amendments to potentially enhance...
Article
Full-text available
A study was conducted to determine the distribution of forms of K (water soluble K, exchangeable K, non exchangeable K, and total K) of potassium in some Ghanaian soils occurring along toposequence using standard laboratory procedures. The soils were the Edina, Atabadzi, Benya, Udu and Kakum series (Acrisols), which form the Edina catena. The conce...
Article
A study was conducted to determine the distribution of forms of K (water soluble K, exchangeable K, non exchangeable K, and total K) of potassium in some Ghanaian soils occurring along toposequence using standard laboratory procedures. The soils were the Edina, Atabadzi, Benya, Udu and Kakum series (Acrisols), which form the Edina catena. The conce...
Article
Full-text available
A pot experiment was conducted to study the extractability of cadmium and zinc by CaCl2 and rhizon extraction methods after the application of organic matter and chloride as soil amendments. Two methods, Rhizon and CaCl2 extraction methods were concurrently employed to study the effects of the various amendments on the mobility of Cd and Zn. Both C...
Article
Okra, Abelmoschus esculents is an important vegetable widely grown in Ghana. The nutritional value derived from the consumption of okra cannot be over emphasized. However, okra has been regarded as a minor crop in Ghana, and for that matter, little or no attention is paid on the cultural practices that need to be adhered to in the cultivation of th...

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Projects

Projects (2)
Project
The WEBSOC project wants to promote growth and employment through research on green, cohesive Water, Energy-from-Biomass, Soil, Organics, and Crop (WEBSOC) agricultural management strategies in Ghana, as present agricultural development depends on deforestation and show little or no increase in productivity per unit of land. WEBSOC is intended to sustainably intensify agriculture to create jobs in poor rural areas. The project will investigate the use of crop residues to produce biochar and wood gas for artisanal use to lessen the pressure on forests for firewood and charcoal as an intelligent way of recycling organics and reducing CO2 emission. The application of biochar to agricultural fields increases carbon sequestration into the soil and thereby represents a CO2-negative approach to sustainable increase soil fertility, crop yields, and carbon storage. Further intensification will be achieved by small-scale solar drip fertigation systems allowing one to two more growing seasons per year to produce high-value horticultural crops. This is a triple-win situation where farmers get sustained higher yields (from irrigation and improved soil fertility), CC gas emissions are reduced (from increased carbon sequestration), and artisanal palm-oil refineries get energy (from pyrolysis of fruit bunch). Finally, agricultural value chains, both on the supply and processing side, are developed in cooperation between local SMEs and universities. The research into these options is pursued within a framework designed to educate PhD students and young scientists.
Project
Biochar improves soil fertility, mitigates greenhouse gas emissions and sequester C in soils