Climatic condition of Calabar as typified by some meteorological parameters

This study aims at analysing some meteorological data collected by the meteorological department of the Margaret Ekpo International Airport, Calabar between 1985 and 2003. The main objectives were to provide average figures and curves of Calabar climate, and to identify possible trends since 1985. Results show that seven out of nine parameters studied indicated marked seasonal variations. There is indeed a clear warming trend and most of the other parameters appear to have significant contribution to climatic change. Wind velocity and evaporation have also slightly decreased. Increase in population may have played an important role as the town has experience tremendous growth due to the renewed emphases on tourism, urbanization and business typified by the establishment of TINAPA business resort in Calabar, Nigeri

Seasonal And Long Term Rainfall Trends In Calabar, Nigeria

Rain fall trends all over the world with the attendant socio-economic effects have taken unprecedented dimensions in recent times. Trend studies of this atmospheric parameter will enable us examine the nature of variationand possible causative agents. Both seasonal and long term trends of rain fall in Calabar between 1985 and 2003 have been examined. Monthly and annual rainfall totals, number of rain days and extreme rain fall indices were determined as secondary data and used for the analyses. SPSS statistical package was used to deseasolnalise the data and determine its trend. Both raw data and deseasonalised data were used to examine long term trends and both show some level of increase in rainfall of about 1.9mm and 300mm respectively. The results also show that rainfall has highly pronounced season. The seasonality of all the parameters namely total rainfall, total extreme rainfall, total number of rain days and number of extreme rain days were all similar, with a slight break in the month of August. This break introduces a week or more of drought which is essential for crop production, drying and storage of agricultural products and their by- product

Effect of different sizes of planting material on the growth and yield components of edible mushroom Pleurotus tuberregium

An experiment was conducted in 2004 and 2005 at the University of Uyo Teaching and Research Farm to assess the effect of different weights of planting materials on the performance and yield components of ediblemushroom Pleurotus tuberregium. The experiment was laid out in Randomized complete block design with three weights (20g, 40g and 60g) as treatments and replicated five times. Each plot size measured 1m x 1m with a total of 16 polybags per plot. Parameters studied were percent emergence, cap diameter, stipe height and girth as well as number of shoots. Results obtained showed no significance (P<0.05) in percent emergence amongst the weights of planting materials. However, a significant (P<0.05) effect was recorded in cap diameter (3.68cm) from the 20g weight planting material. Stipe height and girth did not show any significant difference amongst the treatments. The 60g planting material weight recorded more shoots than the 20g and 40g planting material sizes. The 60g planting material weight is recommended to farmers for the purpose of multiplication of Pleurotus tuberregium for better economicreturns

Evaluation of the potential of some local spices as stored grain protectants against the maize weevil Sitophilus zeamais Mots (Coleoptera: Curculionidae

Five local spices (Piper guineense, Allium sativum, Afromomum melequata, Xylopia aethiopica and Tetrapleura tetraptera) were evaluated in the laboratory for their ability to protect stored maize against infestation by S. zeamais. Ground products of the spices were applied as direct admixtures at two concentration levels of 1% and 5% to assess for mortality, progeny emergence, damage and repellency. At 1% and 5% concentration, P. guineense caused significant (

Trend studies of some meteological parameters in Calabar, Nigeria

No Abstract

Characteristic pattern of rainfall in Calabar, Nigeria - A tropical Coastal Location

No Abstract.Nigerian Journal of Physics Vol. 20 (1) 2008: pp.84-9

Global solar radiation distribution and utilization seasons at Ilorin, Nigeria

No Abstract.Nigerian Journal of Physics Vol. 20 (1) 2008: pp.92-10

Comparison Of Diffuse Solar Radiation Models Using Data For Onne, Nigeria

Measurements of global solar radiation and sunshine duration data during the period from 1984 to 1999 were supplied by IITA (International Institute of Tropical Agriculture) at Onne. The data were used to establish empirical relationships that would connect the daily monthly average diffuse irradiation with both relative sunshine duration and clearness index separately and in combination. The estimated results were then compared with measured values of a nearby location since measured data on diffuse radiation for this location is not available. The correlation connecting diffuse radiation with percentage possible sunshine is found to be applicable over Onne. Keywords: Diffuse, solar radiation, Onne.Global Journal or Pure and Applied Sciences Vol. 14 (4) 2008: pp. 473-47