Vol. 9, Special Issue 12, Part V (2025)

Turmeric (Curcuma longa L.) is an important spice, medicinal and valued for its curcumin-rich rhizomes. This review synthesizes findings from national and international studies on the effects of organic manures and organic formulations on yield, yield attributes, and quality parameters of turmeric. Results consistently indicate that organic manures such as farmyard manure, vermicompost, poultry manure, neem cake, and oil cakes significantly enhance rhizome development, and fresh and cured rhizome yield compared to control treatments. Quality parameters including curcumin content, essential oil, oleoresin, curing percentage, and nutritional composition were also positively influenced by organic nutrient sources. Organic formulations such as jeevamrut, panchagavya, vermiwash, effective microorganisms, cow urine, and humic acid enhanced soil biological activity, crop growth, yield, and biochemical quality in turmeric and related crops. Integrated use of organic manures with organic formulations further improves nutrient availability, microbial activity, and yield performance. Overall, the reviewed studies demonstrate that organic nutrient management and organic formulations play a crucial role in improving turmeric productivity, quality, and soil health. Their adoption is essential for achieving environmentally sustainable, economically viable, and high-quality turmeric production.