BIODEGRADABLE COATING ON COMMON BEAN SEEDS USING NUTRIENT COMPOUNDS OF RESIDUAL ORIGIN
Biofilm; Phaseolus vulgaris L.; Natural polymers; Agricultural sustainability
The growing demand for food, coupled with climate change and the scarcity of natural resources, poses the challenge for modern agriculture to adopt more sustainable practices. The intensive use of mineral fertilizers, in addition to increasing production costs, exacerbates environmental impacts. Therefore, it is essential to seek alternatives that reduce dependence on these inputs. This study aimed to evaluate the use of industrial waste as a nutrient source in seed coating, utilizing different polysaccharide film-forming solutions. The experiment was conducted in Garanhuns, Pernambuco, in 2025, using seeds produced in São João, Pernambuco. Twenty-six combinations of two types of waste with different concentrations of adhesives were tested. The seeds were treated with adhesive solutions and dried for 24 hours. They were subjected to laboratory tests: germination, seedling morphometry, dry and fresh mass, and vigor tests. Morphological and physiological evaluations of field plants were performed. The data were statistically analyzed using ANOVA, followed by the Tukey and Scott-Nott mean tests at a 5% probability level, using Sisvar software. Additionally, multivariate PCA analysis was performed using R software. According to the results, the application had a positive influence on the germination speed index and shoot and root growth of the seedlings. At the field level, there was a positive relationship with increased leaf area, increased chlorophyll a and b indices, and greater biomass accumulation in the shoot.