Remediation of Crude Oil Contaminated Soil with Inorganic and Organic Fertilizer Using Sweet Potato as a Test Crop

Experiment was conducted in Faculty of Agriculture Teaching and Research Farm, Ambrose Alli University, Ekpoma to remediate crude oil contaminated soil with organic and inorganic fertilizers. Thirty six pots were filled with 5 kg surface soils (0-15cm).The soils were contaminated with 300 ml crude oil and amended with six rates of poultry manure and NPK fertilizer mixture. Potato vine with 2 nodes was planted in each pot. The pots were laid out using completely randomized design replicated thrice. Results showed that application of 6 t pm/ha + 400 kg NPK/ha and 4 t pm/ha + 200 kg NPK/ha reduced soil THC from 300 mg/kg to 39.08 and 70.00 mg/kg i.e. net remediation of 86.97 and 76.42 % respectively. Inorganic and organic fertilizer mixtures are effective in the restoration of crude oil contaminated soils. Keywords: contamination, crude oil, NPK fertilizer, poultry manure, remediation, sweet potato

Screening of selected medicinal plants for their antifungal properties

Background: The rising incidence of fungal infections has created the need for the next generation of antifungal agents, as many of the currently available ones either have adverse effects, or are not active against emerging or re-emerging fungi, leading to the fast progression of resistant strains. Objectives: This study aims at evaluating the antifungal activities of some medicinal plants used traditionally for treating skin infections in Nigeria. Methods: In vitro antifungal activities of seven indigenous plants (Leptadenia hastate, Lawsonia inermis, Hyptis suaveolens, Luffa cylindrica, Jatropha curcas, Pterocarpus erinaceous and Afromaxia laxiflora) were screened against Candida albicans ATCC 10231, Candida tropicalis ATCC 13803, clinical strains of Candida albicans, Candida tropicalis, Trichophyton rubrum, Microsporum canis and Epidermophyton floccosum using agar dilution and micro broth dilution methods. Terbinafine and fluconazole were used as reference standards for comparism. Results: The results showed that the ethanol and ethyl acetate extracts of the plants produced better antifungal effects than the hexane and water extracts. Luffa cylindrica and H. suaveolens exhibited the strongest inhibitory activity against all the fungi tested with minimum inhibitory concentration values ranging between 250 and 1000 ag/mL. Conclusion: The plants screened could serve as leads for the development of new antifungal drugs.Key words: Antifungal, agar dilution, micro broth dilution, minimum inhibitory concentration

Antimicrobial Activities of Some Brands of Household Disinfectants Marketed In Abuja Municipal Area Council, Federal Capital Territory, Nigeria

ABSRACT The antibacterial activities of five brands of household disinfectants were obtained fro

Locality

The papers in this collection all deal with the concept of locality in syntactic theory and more specifically relate to the various contributions Luigi Rizzi has made in this connection over the past three and a half decades. The authors are all either former students of Rizzi’s or colleagues and friends who have collaborated with him closely over the years. Luigi’s influence on all our work, and on the development of syntactic theory as a whole, has been profound; this volume is a small attempt to recognise and show our gratitude for that influence

Effect of Integral Non-Linearity on Energy Calibration of Spectroscopy Systems.

The integral non-linearity (INL) of four spectroscopy systems, two integrated (A1 and A2) and two classical (B1 and B2) systems was determined using pulses from a random pulse generator. The effect of INL on the system's energy calibration was also determined. The effect is minimal in the classical system at high countrate, but is quite pronounced in the integrated system under similar conditions. JOURNAL OF THE GHANA SCIENCE ASSOCIATION Volume 1 Number 1, July (1998) pp. 126-13