Vol. 7, Issue 10, Part B (2025)

The growing demand for high-quality citrus fruits has prompted extensive research into improving the nutritional quality and yield of these crops. Humic acid, a complex mixture of organic compounds derived from decomposed plant and animal matter, has garnered attention for its potential role in enhancing soil health, plant growth, and overall fruit production. This review examines the impact of Humic acid on citrus crops, focusing on its ability to enhance nutritional quality and increase yield. Humic acid has been shown to influence various physiological processes in plants, including nutrient uptake, root development, and stress tolerance. Its application has demonstrated positive effects on soil fertility, increasing the availability of essential nutrients such as nitrogen, phosphorus, and potassium, which are critical for citrus growth. Furthermore, Humic acid has been reported to enhance the photosynthetic efficiency of citrus plants, leading to improved growth and fruit production. Several studies have also suggested that Humic acid can increase the fruit’s nutritional value by boosting the levels of antioxidants, vitamins, and essential minerals. Despite these promising findings, the exact mechanisms through which Humic acid affects citrus crops remain unclear, and further research is needed to optimize its application for different citrus varieties and environmental conditions. This paper aims to provide an overview of the current knowledge on the role of Humic acid in citrus cultivation, discussing both the beneficial effects and the limitations associated with its use. A deeper understanding of Humic acid’s impact on citrus growth could provide valuable insights for improving agricultural practices and meeting the growing demand for high-quality citrus fruits.