In autumn 2024 a study was carried out on the efficacy of Radicon®, a formulation based on humic and fulvic acids derived from vermicompost, applied to iceberg lettuce crops in greenhouses, by the official testing centre Agroresearch on the Sele plain.
The aim was to evaluate the impact of Radicon®, at different rates and application methods, on plant vigour, root development, resistance to calcium deficiency (tip-burn), the nitrate content of the leaves and overall yield.
Plants treated with Radicon® were compared with those of the untreated control and with a competitor product based on humic acids from leonardite. The results showed positive effects of Radicon® on root development, plant vigour and yield, with improved leaf colour and increased head weight.
The application did not have a negative effect on nitrate content, keeping it within acceptable limits. The study suggests that the use of Radicon® can increase farmers’ income, making it an interesting option for the nutrition plans of greenhouse crops.