Effect of Humic Biostimulant Agriful on Agronomic and Nutritional Parameters of Radish (Raphanus sativus)

This study aimed to evaluate the effect of the humic biostimulant Agriful on the average weight of root per plant, yield, antioxidant capacity, and total polyphenol content of three radish (Raphanus sativus L.) varieties during two growing seasons. The research was carried out as a small-plot field experiment, comparing a control variant with a variant treated with Agriful. The results showed that Agriful significantly increased root weight, yield, antioxidant capacity (measured using DPPH, FRAP, and ABTS methods), and polyphenol content in all varieties tested. The most significant improvement in all monitored parameters was observed in the ’Kulatá černá’ variety. On the contrary, the least significant improvement in the monitored parameters was observed in the ’Red Meat’ variety. The results indicate the potential of Agriful to increase the nutritional and yield parameters of radish production and to provide an organic alternative to synthetic inputs.