Author(s): Ana Gomez, Juan Rodríguez, Maria Silva and Ahmed El-Bakry

Abstract: The management of soil micronutrients plays a critical role in enhancing the growth and yield of crops, especially in nutrient-deficient soils. Papaya (Carica papaya L.), a tropical fruit crop, has gained attention for its potential as a medicinal plant due to its rich phytochemical profile. However, the nutrient management in papaya cultivation, particularly concerning essential micronutrients like zinc (Zn) and boron (B), has not been adequately explored in the context of optimizing both its biomass and yield. This research investigates the effect of varying zinc (Zn) and boron (B) levels in the soil on the biomass production and yield performance of Papaya cv. Red Lady, aiming to enhance its productivity and medicinal potential. Field experiments were conducted using different concentrations of Zn and B, with the focus on their influence on plant height, leaf area, fruit yield, and phytochemical composition. The results indicated that balanced micronutrient supplementation significantly improved growth parameters, yield, and the concentration of bioactive compounds such as flavonoids and antioxidants in papaya. This research also explores the potential of papaya as a high-yielding herbal crop, which could benefit both the food and pharmaceutical industries. The findings suggest that optimal soil micronutrient management is vital for enhancing the agricultural and medicinal value of papaya, particularly in regions with micronutrient deficiencies. The research highlights the importance of integrating zinc (Zn) and boron (B) fertilization as an effective strategy to promote sustainable agriculture while tapping into the therapeutic potential of this crop.

DOI: 10.22271/flora.2025.v13.i3a.1049