Nitrogen Assessment in Amended Mining Soils Sown with Coronilla juncea and Piptatherum miliaceum

Metalliferous mining activities generate a large amount of waste. This waste usually has high concentrations pollutants such as metal(oid)s associated with the extractive processes, which, if not properly treated and reclaimed, put ecosystem population at risk. One most used techniques for mine reclamation is aided phytostabilization, which based on use plants that immobilize metals in soil/roots by amendments to improve soil properties favor plant growth. Although increase nutrients properties, concentration these nutrients—especially N, limiting nutrient—decreases over time. Thus, this study focused evaluation relationship between different combinations (compost, biochar, zeolite limestone) growth (we introduced Coronilla juncea Piptatherum miliaceum) evolution N time well influence C. fixation. The results showed addition improved characteristics all plots favoring P. miliaceum. compost provided higher total nitrites, nitrates ammonium due nature amendment biochar was less measure. limestone helped elevate pH controlled exchangeable ions. Soils from forms, suggesting legume contributes enrichment likely biological Hence, limestone-zeolite-compost limestone-zeolite-compost-biochar were suitable treatments improving fertility favored In addition, seems be good candidate reclaiming environments.