Daniel Ntiamoah Afreh

ORCID: 0000-0003-3543-0919
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About
Contact & Profiles
Research Areas
  • Crop Yield and Soil Fertility
  • Agronomic Practices and Intercropping Systems
  • Agricultural pest management studies
  • Soil Carbon and Nitrogen Dynamics
  • Legume Nitrogen Fixing Symbiosis
  • Agricultural Science and Fertilization
  • Rice Cultivation and Yield Improvement
  • Genetics and Plant Breeding
  • Agroforestry and silvopastoral systems
  • Agriculture Sustainability and Environmental Impact
  • Polymer-Based Agricultural Enhancements
  • Cassava research and cyanide
  • Natural product bioactivities and synthesis
  • Food Security and Health in Diverse Populations
  • Soil and Land Suitability Analysis
  • Plant biochemistry and biosynthesis
  • Phosphorus and nutrient management
  • Genetic and Environmental Crop Studies
  • Ginseng Biological Effects and Applications
  • Soil and Water Nutrient Dynamics
  • Agriculture and Rural Development Research
  • Ginkgo biloba and Cashew Applications

University of Energy and Natural Resources
2019-2024

Institute of Crop Sciences
2017-2018

Chinese Academy of Agricultural Sciences
2017-2018

Kwame Nkrumah University of Science and Technology
2001

Ginseng, which contains ginsenosides as bioactive compounds, has been regarded an important traditional medicine for several millennia. However, the genetic background of ginseng remains poorly understood, partly because plant's large and complex genome composition. We report entire sequence Panax using next-generation sequencing. The 3.5-Gb nucleotide more than 60% repeats encodes 42 006 predicted genes. Twenty-two transcriptome datasets mass spectrometry images roots were adopted to...

10.1093/gigascience/gix093 article EN cc-by GigaScience 2017-10-05

Background. The experiment was undertaken at Nsapor, a suburb of Berekum municipality in the Bono Region Ghana, from March 2019 to November determine suitable rate fertilizer nitrogen application optimize seed yield and attributes Pannar 12 Omankwa maize varieties semi deciduous agroecology Ghana. Soil fertility is low Ghana because factors such as rampant annual bushfires, short fallow periods result high human populations, continuous cropping, deforestation, improper mining activities....

10.1155/2023/2437607 article EN cc-by International Journal of Agronomy 2023-03-27

In monoculture, crop failure due to biotic or abiotic causes can result in partial total output failure. The yield, socio-economic, and environmental effects of intercropping on the farmer environment as a whole have not received much attention. There is dearth knowledge productivity maize-groundnut intercrops Ghana regarding relative timing planting spatial arrangement component crops. Therefore, objective study was determine row time groundnut under intercropping. 5 × 3 factorial field...

10.4236/ajps.2023.143019 article EN American Journal of Plant Sciences 2023-01-01

Soil fertility continues to decline in Ghana due unsustainable human activities like bush burning, quarrying, improper farming practices, among others. To resolve this challenge, crop farmers resort continuous use of mineral fertilizers Ghana, which contaminates the environment and makes less sustainable productive. One strategies improve soil productivity for yields is intercropping. Studies were, therefore, undertaken at Miminaso Ejura-Sekyedumase municipality Ashanti Region during 2020...

10.4236/as.2023.149087 article EN Agricultural Sciences 2023-01-01

ABSTRACT This study sought to identify the most effective weed control methods for enhancing growth, yield and grain quality in cowpea reduce interference during major minor rainy seasons of 2022 at Juaso Asante Akim South Municipality, Ghana. Sun‐zema 30 mL/15 L water, Supremo (90 water), Vezir Ogyama (100 water) Benfop hoeing, cutlass weeding no were evaluated a randomized complete block design with three replicates. Data on flora, plant height, number leaves per plant, days 50% flowering...

10.1002/leg3.70010 article EN cc-by Legume Science 2024-10-17

ABSTRACT The need to maintain soil organic matter in an effort overcome declining fertility on smallholder farms Ghana cannot be over emphasized. While such as poultry manure and cow dung are scarce, access inorganic fertilizers is limited due high cost. Three biomass-producing plants (Chromolaena odorata, Panicum maximum Pueraria phaseoloides), considered weeds farmers' fields Ghana, were evaluated nutrient sources amendments. Mass loss release measured from residues contained litterbags...

10.1080/01448765.2001.9754915 article EN Biological Agriculture & Horticulture 2001-01-01

A field experiment was conducted at the Research and Teaching Farm, School of Agriculture Technology (SOAT), University Energy Natural Resources (UENR), Dormaa Ahenkro Campus, Ghana, to determine genetic variability, heritability, advance, correlation among growth yield traits African yam bean in Ghana. There were significant differences ( <math xmlns="http://www.w3.org/1998/Math/MathML" id="M1"> <mi>p</mi> <mo>&lt;</mo> <mn>0.05</mn> </math> ) for studied, except days 50% emergence, petiole...

10.1155/2023/1996255 article EN cc-by Advances in Agriculture 2023-02-22

Cashew (Anacardium occidentale L.), a recently recognized cash crop in Ghana, is an economically export oriented that plays helping role the Ghanaian economy diverse ways. Owing to its importance, surveys were conducted some major cashew producing communities Dormaa and Berekum West District of Bono region assess problems insect pests diseases associated with this economic tree across study area. Diseased samples showing varying degrees symptoms taken for isolation identification using...

10.24018/ejfood.2021.3.5.357 article EN European Journal of Agriculture and Food Sciences 2021-09-05

Background: Adequate and balanced use of plant nutrients could increase crop performance reduce adverse environmental effects. Farmers in Berekum have little information on the specific rate nutrient, especially nitrogen application for hybrid open pollinated maize varieties. Methods: A field experiment was carried out Municipality Ghana to determine effects different doses N fertilizer (0, 90, 120 150 kg ha-1) growth efficiency (NUE) Pannar 12 (hybrid) Omankwa (open-pollinated) The...

10.18805/ag.df-559 article EN Agricultural Science Digest - A Research Journal 2024-05-21

Background: An experiment was conducted at Nkoranza in the Bono-East Region and Ejura Sekyedumase Ashanti of Ghana from July to December, 2021 evaluate effects P based fertilizer plant spacing on leaf area, area index seed yield components Bambara groundnut. Methods: The a 3 x factorial, arranged Randomized Complete Block Design with three replicates. first factor levels, including 50 cm 20 cm, 40 25 while second application complex (NPK 11:22:20) 0 kg/ha, 30 kg P/ha 60 P/ha. Result: Results...

10.18805/ijare.af-807 article EN Indian Journal of Agricultural Research 2024-05-23

Studies to ascertain the effect of organic and mineral sources N, P K on growth yield attributes Bankyehemaa Nkabom varieties were undertaken in Offinso, Ghana, from June, 2014 May, 2015.The cassava 2 t/ha poultry manure (PM), 600 kg/ha each NPK 15-15-15 23-10-10, a combination fertilizers with PM at their half rates negative control laid out factorial Randomized Complete Block Design three replications.Plant height, number roots per plant, mean root weight length measured over period,...

10.36347/sjavs.2021.v08i02.004 article EN Scholars Journal of Agriculture and Veterinary Sciences 2021-03-01

Nitrogen rate and time of application are among the major abiotic factors limiting productivity maize. The research was, therefore, carried out to examine response two maize varieties (Omankwa Pioneer hybrid) four different times N : P K 15 fertilizer during growing season in Ghana. experiment was arranged a randomized complete block design with eight treatment combinations three replications. Our findings showed that responded differently. interactive effect indicated planting produced...

10.1155/2022/7186913 article EN cc-by International Journal of Agronomy 2022-04-12

Judicious usage of fertilizers could boost crop productivity and reduce negative effects on the environment. Farmers in Berekum have insufficient information specific rate nitrogen application for hybrid (Pannar 12) open pollinated (Omankwa) maize varieties. Field studies (March – November, 2019) were, therefore, carried out Municipality Ghana to determine effect different rates N fertilizer time flowering physiological maturity open-pollinated Pannar 12 Omankwa varieties were treated with...

10.2139/ssrn.4526991 preprint EN 2023-01-01

Purpose: Coordinated soil richness management innovation fits into the position of resource for poor cultivating on an Afisol in Guinea savannah zone Ghana. The research was conducted to determine effect seed coating and Burkina rock phosphate growth yield rice at University Development Studies Nyankpala near Tamale Northern Region study aimed is interaction Triple superphosphate rice.Research Method: experiment a 2x3 factorial laid randomized complete block design replicated six times....

10.4038/jas.v14i3.8601 article EN cc-by-nc-sa Journal of Agricultural Sciences – Sri Lanka 2019-09-01

Background: Poor soil fertility management in Ghana has necessitated the need to investigate appropriate source of nitrogen which enhances use efficiency and improves maize productivity under rainfed condition. Methods: The experiment consisted five treatments; control (no fertilizer), NPK 15-15-15 (90 kg N ha-1), urea poultry manure (4.2 tons ha-1) combination (½NPK + ½ manure). Randomized complete block design was experimental used for with three replications. Result: greatest grain yield...

10.18805/ag.df-433 article EN Agricultural Science Digest - A Research Journal 2022-06-06
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