The Effect of Different Soil Amendments on Growth of Mung bean (Vigna Radiata L.) in Coal Mine Overburden Dumps

The surface mining activities in the past and in recent times has resulted into existence of number of overburden dumps through excavation and depositing removed soil and rock debris. These dumps require environmental stabilization/restoration, through proper revegetation. To achieve this aim, a study was conducted to find the efficacy of Mung bean (Vigna radiata L.), an economically important leguminous crop plant, for re-vegetation. The objective of the present study was to evaluate the effect of different soil amendments such as chemical fertilizer, biocompost, vermicompost, bio-fertilizer and fly-ash in appropriate combination to support vegetation. The physicochemical parameters of the overburden soil sample at the time of experiment and after the harvesting have been analyzed. Plant growth in terms of different parameters was measured. The experimental results indicated that all the combinations were significantly increase plant growth and soil fertility. No significant differences were observed among the combinations. The appropriate combinations would be conducive for greater nutrient uptake by the crop and also would improve the soil health and soil fertility status. According to the finding of this research and regarding economic matters and environmental anxieties, it may be recommended that the appropriate proportion of chemical fertilizer, organic fertilizer, vermicompost, bio-fertilizer and fly ash can be used as a soil amendment and Mung bean (Vigna radiata L.) can be used in revegetation of coal mine dumps. Key Words-bio-efficacy, bio-fertilizer, overburden dumps, re-vegetation, vermicompost, Vigna radiata