Quality of Vinhático da Mata (Plathymenia Foliolosa) Seedlings Produced in Substrates Formulated with Carbonized Coffee Straw

Objective: This study aimed to evaluate the physicochemical characteristics of different formulations of alternative substrates containing carbonized coffee husks and their effect on the development of vinhático da mata (Plathymenia foliolosa) seedlings. Method: Nine treatments were tested, including combinations of latosol, carbonized coffee straw, and commercial substrate. The experiment followed a completely randomized design, with three replicates and 10 seedlings per replicate. After 90 days, the morphological parameters of the seedlings and the physicochemical characteristics of the substrates were evaluated. Results and Discussion: The results indicated significant differences between the treatments: the substrate with 50% latosol and 50% coffee straw (T3) provided greater growth and fresh mass, while the commercial substrate (T6) stood out in total dry mass, Dickson Quality Index (DQI), and electrical conductivity within the recommended standards. Research Implications: Research on substrates for vinhático da mata seedlings promotes sustainable agricultural practices and improves the quality of seedlings for reforestation. The use of coffee straw adds value to farmers and strengthens the circular economy. Originality/Value: This study contributes to sustainability by integrating coffee straw, native soil, and commercial substrate, optimizing the cultivation of vinhático seedlings and promoting biodiversity conservation. In addition, it offers new economic opportunities for farmers.