Use of nutritional complex thru industrial treatment of soybean seeds

Abstract

This study aimed to evaluate the effects of incorporating a polynutrient biological–mineral fertilizer containing bioactive compounds on the physiological potential of soybean seeds subjected to industrial seed treatment and storage. The experiment was conducted in a completely randomized design with a split-plot arrangement and four replications. Industrial seed treatment technologies were assigned to the main plots, while storage periods (0 and 50 days) were allocated to the subplots. Seed physiological quality was assessed using the standard germination test, first germination count, accelerated aging test, seedling emergence in a sand substrate, seedling length, and seedling dry biomass. The results indicated that the inclusion of the biostimulant fertilizer improved physiological performance compared with treatments without fertilizer, with the formulation composed of thiophanate-methyl + fluazinam associated with bifenthrin + imidacloprid combined with fertilizer (Composition III + Fertilizer) showing the most consistent performance across the evaluated variables. Storage for 50 days reduced seed vigor and germination, particularly in untreated seeds. Among the evaluated technologies, only Composition II + Fertilizer, Composition III, and Composition IV + Fertilizer maintained commercial seed quality after storage. These findings demonstrate that integrating a biostimulant fertilizer into industrial seed treatment protocols enhances seed physiological performance and mitigates storage-related deterioration, representing a technically viable strategy to preserve soybean seed quality during commercialization and short-term storage.