Alternative Substrates: A Proposal for Viability and Sustainability in Coriander Cultivation

Objective: The objective of this study is to evaluate the germination, growth, and development of coriander (Coriandrum sativum L.) in different types of alternative substrates to determine their technical and economic feasibility for small producers. Theoretical Framework: The premise is that the ideal balance between the physical and chemical properties of the substrate is essential for the rapid establishment and high productivity of the crop, which has a short cycle and socioeconomic relevance. The use of alternative substrates aligns with the Sustainable Development Goals (SDGs) of the 2030 Agenda, promoting sustainability, circular economy, and the overcoming of economic barriers associated with the use of non-renewable inputs. Method: The experiment was conducted in randomized blocks, comparing five substrate formulations (T1 – Control and T2 to T5 – Alternative) with four replications. The sowing and germination counting methodology followed official standards (Brazil, 2009). The key measurement parameters were the germination percentage and the accumulation of fresh mass in the aerial and root parts. Results and Discussion: It was observed that all alternative substrates (T2 to T5) significantly outperformed the control, with treatments T4 and T5 being the most effective, showing higher germination rates and biomass accumulation. These results are attributed to optimized porosity and greater phosphorus (P) availability, which ensure ideal conditions in the root zone and greater nutritional efficiency. Research Implications: This study provides a technical evaluation of regional substrates for coriander, confirming their feasibility and profitability, ensuring that agronomic advancement translates into sustainability for Family Farming. Future research is suggested with detailed economic analysis and measurement of the physical properties of the substrates, correlating them directly with agronomic performance. Originality/Value: This study enhances regional resources as viable and sustainable alternatives to conventional commercial substrates, expanding opportunities for small producers and strengthening practices aligned with sustainability and the SDGs.