Vol. 6, Issue 2, Part A (2024)

Humic acid, a key organic compound derived from decomposed plant and animal materials, plays a significant role in enhancing soil health and plant growth. Recent advancements in its application, particularly for citrus crops, have attracted substantial attention due to its potential to improve vegetative growth and yield. This review examines the impact of humic acid on the vegetative growth characteristics of citrus plants, focusing on the mechanisms through which humic acid enhances nutrient uptake, root development, and overall plant Vigor. Humic substances, when applied to soil or as foliar sprays, influence various physiological processes, such as chlorophyll synthesis, root elongation, and water retention. Moreover, humic acid has been found to interact synergistically with other soil amendments and fertilizers, enhancing the overall efficacy of nutrient management in citrus cultivation. Through an analysis of recent studies, this paper highlights the positive effects of humic acid on citrus plants, detailing both field and greenhouse trials. The paper also discusses the long-term benefits of humic acid application in sustainable agriculture, including improved soil structure, increased microbial activity, and enhanced resilience to environmental stresses. While the results are promising, further research is required to optimize application methods and dosage, ensuring the most effective use of humic acid in citrus farming. The integration of humic acid with other agricultural practices, such as precision farming and integrated pest management, presents a promising avenue for sustainable and profitable citrus production.