Application of compost tea for the development of beet and passion fruit seedlings under organic management
Rhizogenesis; Bioinputs; Plant Propagation; Vermicompost; Gongocompost; Agricultural Sustainability
The conventional agricultural model, although responsible for significant productivity gains, has caused negative impacts on the environment, human health, and the sustainability of agricultural systems, highlighting the need for safer and more ecological alternatives. In this context, bioinputs aligned with the principles of organic agriculture, represent a promising strategy, particularly compost tea—a liquid extract derived from the fermentation of composted organic materials, rich in nutrients, bioactive substances, and beneficial microorganisms. This project aims to evaluate the potential of two types of compost tea, obtained from vermicompost and gongocompost, applied at four dilutions (1:10, 1:20, 1:30, and 1:40), targeting the production of beet seedlings (Beta vulgaris L.) by sowing and yellow passion fruit (Passiflora edulis Sims f. flavicarpa Deg.) by cuttings. The experiments will be conducted separately, according to the specific propagation methods of each species. The study will take place in a protected environment at the Federal University of Viçosa, using a randomized block design with split plots, using four replications per treatment and a control with deionized water. Agronomic variables such as number of roots, survival rate, vigor, seedling height, and disease incidence will be evaluated. The compost teas will be prepared using matured organic composts, cane molasses, and deionized water, with continuous aeration to promote microbial growth and release of bioactive compounds. The effectiveness of compost teas in the germination phase and vegetative rooting is expected to contribute to the production of high-quality organic seedlings. The results aim to confirm the biostimulant action of the teas, identify the best concentrations and application methods, and support technical recommendations for seedling nurseries in agroecological systems. Thus, this research seeks to strengthen organic agriculture, reduce dependence on synthetic inputs, and generate knowledge that supports the adoption of sustainable practices in the early stages of plant production.