Açaí Biochar and Compost Affect the Phosphorus Sorption, Nutrient Availability, and Growth of Dioclea apurensis in Iron Mining Soil

Organic materials, such as biochar and organic compost, can reduce P sorption mechanisms improve soil fertility, benefiting the reclamation of areas impacted by mining. This study evaluated how chemical properties Fe mining soil, adsorption onto this substrate, growth native plant Dioclea apurensis, were affected application açaí (BC), compost (OC), different doses. Substrate collected from piles was incubated for 30 days with BC or OC. Each substrate without addition OC received five doses (0, 40, 80, 120, 240 mg∙kg−1 P). The promoted an increase in pH nutrient availability (P, K, Ca, B) soil. However, plants grown unamended (W) showed higher growth. maximum capacity decreased a function BC. We conclude that reduced sorption, while either altered caused contrasting effects on dynamics these treatments also