Tag Archives: Concentration

Effect Of Different Sugar Concentration On The Yield Of Cowpea (Vigna Unguculate ) In Delta State Polytechnic Ozoro (Published)

This project was carried out in school of agriculture teaching/research farm, in Delta State Polytechnic Ozoro in Isoko North Local Government Area of Delta state in Nigeria. Beans required some amount of sugar for proper development. The need to evaluate the best sugar concentration for cultivation of beans necessitated this study. Bean seeds bought from the local market were planted into Complete Randomized block design replicated three times. One hundred and sixty seeds were planted, at seedling emergence forty seedling were dressed with 10ml, another sixty were dressed were dressed with with 20ml, another sixty were 30ml while the remaining sixty seedling served as control The growth parameter that were measured were numbered of leaves, plant height  and number of pods at harvest.. The result in table (1) shows that beans dressed with 10ml had more number of leaves of 12.5, 23.5 and 22.67 as against 12.2, 22.3, 19.83 and 11.8, 20.5 and 19.0 for 20ml and 30ml respectively while control had 12.1, 20.7 and 21.65. Table (2) shows that beans dressed with 10ml had better plant height of 83.85, 425.18 and 213.8 as against 63.73, 183.52, 208.62 and 51.57, 160.58 and 116.88 for 20ml and 30ml respectively. For the control it had 57.18, 165.28 and 208.5. Table (3) shows that beans dressed with 10ml sugar concentration had better number of pod at harvest of 5.11 and 8.17 as against 4.17 and 7.5 and 3.0 and 6.0 for 20ml and 30ml respectively. The control had 4.07 and 6.33. in conclusion, although beans required sugar, beans dressed with 10ml performed better in terms of number of leaves, plant height and number of pods at harvest. However there was significant difference among the treatment at (p>0.05). It is therefore recommended that beans should be dressed with 10ml sugar concentration for better growth and yield.

Keywords: Concentration, Number of Leaves, Plant Height and Pods at Harvest., Sugar

Assessment of Heavy Metals in Ground Water Sources in Agona District in the Central Region of Ghana (Published)

This study was done to determine the concentration of trace metals in groundwaters in the Agona East district of the Central region of Ghana. Ground water samples were collected from 3 hand dug wells and 15 boreholes in the study area. All samples were analyzed for seven trace metals (Zn, Cu, Cr, Mn, Fe, Cd, Al) using Atomic Absorption spectrophotometer (AAS). The concentrations of the trace metals from the various areas range from 0.824 to 0.1.122 mg/L for Cu; 0.116 to 0.312 mg/L for Zn; <0.002 to 0.364 mg/L for Cr; <0.006 to 0.065 mg/L for Mn; 0.156 to 1.236 mg/L for Fe; <0.002 to 0.028 mg/L for Cd and 1.44 to 3.188 mg/L for Al. Four of the trace metals (Cu, Zn, Mn, and Cd) had their concentrations within the WHO standards for drinking water. Aluminium, Iron and chromium had their values above the WHO limits at most of the sampling sites.

Keywords: Atomic Absorption spectrophotometer (AAS), Concentration, Groundwater, Toxicity, Trace Metals

Heavy Metal Contamination of Top Soil at Auto-Repair workshops in Cape Coast, Ghana (Published)

Trace metal contamination at 4 selected auto workshops at cape coast Ghana has been ascertained in this study. A total of 18 soil samples from auto-repair workshops and 44 soil samples from control sites were sampled and analyzed using energy dispersive x-ray fluorescence technique (EDXRF). Heavy metals like Fe ,Cu, Zn ,Cr, Pb and Mn were analyzed .Mn concentrations were between 364.6713g/g and 1934.063g/g. Cu  concentrations were between 42.33g/g and 299.36g/g, Zn concentrations fell between 67.08g/g and 544.26g/g, Cr concentration were between 93.54g/g and 1266.23, Ni concentrations were between75.89g/g and 217.52, Pb concentrations were also between 73.89g/g and 713.65g/g, Fe concentrations were between 21485g/g and 47317.50g/g, which is below its natural  occurrence. The enrichment factor (EF) was also used to identify possible levels of contamination from anthropogenic sources. Mechanical shop, Spraying shop, Wielding shop and Electrical shop were contaminated with Fe, Ni, Cu and Mn.

Keywords: Concentration, Contamination, Energy Dispersive X-ray Florescence, Enrichment Factor, Heavy Metals

EFFECT OF CARBON TO NITROGEN RATIO ON BIOGAS PRODUCTION (Published)

Various parameters such as concentration of slurry, pH, moisture, total solids, temperature, and C/N ratio are among the main parameters affecting biogas production. The carbon and nitrogen contents of various biogas feedstocks were determined using standard methods and the volume of biogas produced by the substrates were measured using the graduated gas cylinder. The results show that carbon to nitrogen ratio affects the volume of the generated biogas. The production of biogas depends to a large extent, on the choice of feedstock and its carbon to nitrogen ratio.

Keywords: Biogas, C/N ratio, Concentration, Feedstocks, Temperature, pH

The Structure, Conduct and Performance of Commercial Banks in Ghana (Published)

This paper analyses the structure, conduct, and performance of commercial banks in Ghana. The empirical investigation uses two different measures of concentration to represent market structure and a market share variable to capture the effect of Market conduct on bank performance, and two accounting measures: return data on Return on Assets (ROA), return on equity (ROE) to represent banks’ performance. Annual time series data ROA, ROE and other ratios were collected from nineteen commercial banks over the period 2007 -2012. The results indicated that market concentration and market share significantly determines profitability in Ghana, signifying the strong acceptance of the SCP hypothesis. Consequently, the research suggests the need for improvement in bank capitalization, bank size, service product innovation and effective liquidity management for the Ghanaian banking industry

Keywords: Assets, Concentration, Conduct, Deposits, Market Share, Performance, Structure

Effect of Carbon to Nitrogen Ratio on Biogas Production (Published)

Various parameters such as concentration of slurry, pH, moisture, total solids, temperature, C/N ratio are among the main parameters affecting biogas production. The carbon and nitrogen contents of various biogas feedstocks were determined using standard methods and the volume of biogas produced by the substrates were measured using the graduated gas cylinder. The results show that carbon to nitrogen ratio affects the volume of the generated biogas. The production of biogas depends to a large extent, on the choice of feedstock and its carbon to nitrogen ratio.

Keywords: Biogas, C/N ratio, Concentration, Feedstocks, Temperature, pH

  • Our Journal Publishing Partners