Evaluation of the effect of chemical fertilization and some natural extracts on the production of freesia (Freesia refracta L.) plants: a sustainable approach

Abstract Effects of different types fertilizers; traditional NPK (1 g plant −1 ), 2, 4, 6 and 8 gm L moringa leaves extract (MLE), 10, 20, 40 60 mL aloe (AL) on vegetative growth, flowering Corms production chemical constituents Freesia refracta . were evaluated during two successive seasons (2020–2021 2021–2022). Treating plants with MLE caused increases in height, number if flowers by 35.2%, 8.2% 16.3%, respectively, while treating Al 33.2%, 7.9% 15.4% the same parameters, averaged between concentrations growth seasons. The results revealed that, a significant increase flowering, corms production. These improvement fits many goals 17 United Nation Sustainable Goals (UNSDGs); especially SDG2 (Zero hunger), SDG13 (climate action) SDG15 (Life land). Moreover, composition was improved significantly.