Influence of Soil Particle Size and Arbuscular Mycorrhizal Fungi (AMF) in the Performance of Phaseolus vulgaris Grown under Crude Oil Contaminated Soil

摘要

Biotic processes represent the major route responsible for the ecological recovery of hydrocarbon contaminated sites. An experiment was conducted to assess the influence of soil textural class and arbuscular mycorrhizal (AM) fungi in the performance of Phaseolus vulgaris under crude oil contaminated soil. Three soils of different textural class viz clay loam soil (clay 52%), sandy clay soil (clay 30%), sandy loamy soil (clay 8%) were used to grow P. vulgaris under 2%, 4% and 8% (v/w) crude oil contamination. The experimental units were biostimulated with 2 g NPK fertilizer pot-1 and were inoculated with 12 g AM inoculum pot-1. Non inoculated pots served as control. The results obtained showed that AM inoculated pots recorded higher and significantly (P