Interaction Between Economic Growth and Oil Products Importation in Nigeria Using Autoregressive Lagged Ordered Model (ARLOM)

The paper investigates the interaction between economic growth and oil products importation in Nigeria both in the long-run and short-run adopting autoregressive lagged ordered model (ARLOM). The data on the two variables span from 1983 to 2021. The pre-test analysis shows that both variables have the same order of integration, co-integrated in their normal levels and stationary at first difference. Estimation based on the least square method, shows that importation of oil products interacts significantly with economic growth at the long-run at 5% level. Moreover, there is no evidence of relationship in the short-run. Therefore, we recommend that if resources are well managed and oil importation dealings are very transparent, then Nigeria economy can grow better.&nbsp

Evaluation of yam-based production enterprises in Nigeria

This research investigated yam based production enterprise in Nigeria to identify the ideal farming system for yam. Data were extracted from 360 respondents in selected major yam-producing States in Nigeria. Data were analysed by the use of descriptive statistics and economic analysis. The result of this investigation reveals that yam production is profitable but it requires a large capital outlay. Yam production was more profitable that other comparable crops. There are infinite cropping systems for yam in Nigeria. All the dominant cropping systems for yam are profitable. Yam/maize intercropping system is the most profitable crop system for yam in Nigeria. The key recommendations from this research are increased investment in yam production; adoption of Yam/Maize intercropping system; and the development of an appropriate yam production technique that will reduce the cost of yam and make its production more profitable

Impact of adoption of Yam Minisett Technology on performance of small-holder farmers in Nigeria: A propensity score matching analysis

There is global food insecurity which could be attributed to poor performance of the agricultural sector in the developing countries. In a bid to ensure food security, improved technologies have been developed and disseminated to farmers. These include Yam Minisett Technology. In spite of this, there is food insecurity and poverty intensification in the country. This raises the questions whether or not farmers are adopting these technologies and the efficacy of these technologies in enhancing farmer performance and alleviating poverty in the country. This research investigates the potential of YMT to improve the performance of yam farmers. The study also evaluates the use of Propensity Score Matching in assessing the impact of a technology on performance/wellbeing.Keyword: Yam minisett technology, adoption, performance, and Propensity Score Matchin

Acid tolerance of the African lungfish Protopterus annectins (Owen)

The tolerance of the African lungfish, Protopterus annectens (Owen) to acid water was investigated under laboratory conditions. Healthy adult specimens of the African lungfish, Protopterus annectens (Owen); mean length 38.3cm ± 2.4, and mean weight 294.3g ± 5.2 were subjected to acid waters of concentrations that ranged from pH 3.8 to pH 7.4. P. annectens tolerated acid water from neutral pH 7.4.down to a pH of 4.6. It is possible that P. annectens was able to maintain almost a constant level of blood pH in acid waters due to the possession of acidophilic cells in the gills which actively secrete H+ from the blood into the water medium.Global Journal of Environmental Sciences Vol. 6 (1) 2007: pp. 71-7