Standardization of organic cultivation practice for enhancing yield and quality of turmeric (Curcuma longa) in terai region of West Bengal

A field experiment was conducted at ICAR–National Institute for Research on Commercial Agriculture, Research Station, Dinhata, West Bengal to standardize organic nutrient management for turmeric (Curcuma longa) (Lakadong). The trial was laid out in randomized block design with twelve treatment combinations. The results revealed that application of recommended fertilizer dose (120:80:120 kg ha-¹) gave total fresh rhizome yield of 9.7 t/ha which was on a par with FYM (40 t/ha) + microbial consortium with total fresh rhizome yield (9.5 t/ha). The highest curcumin (4.5 %) was obtained in the application of Vermi compost @ 10 t/ha followed by 4.3 % in application of FYM (40 t/ha) + microbial consortium which were statistically at par. Therefore, application of FYM (40 t/ha) + microbial consortium can be recommended for cultivation of Lakadong turmeric in terai region of West Bengal.