Effect of Integrated Nutrient Management on Growth, Herb Yield and Menthol Content of Japanese Mint (Mentha arvensis l.) Var. Kosi

Aim: To study about the effect of integrated nutrient management on growth, yield and menthol content of Japanese mint. Study Design: The experiment was carried out with 17 treatments in Randomized Block Design (RBD) with three replications. Place and Duration of Study: Research trial was carried out at P.G block, College of Horticulture, Rajendranagar, SKLTSHU, Hyderabad during Feb-May 2022 and Aug- Nov 2022. Results: Among the different treatments, the results reported that the 75 % N + poultry manure 4 t/ha + Arka microbial consortium recorded maximum plant height (63.00 cm and 61.13 cm), number of primary branches (32.67 and 32.07), number of secondary branches (11.47 and 10.53), number of leaves (1130.67 and 1071.73), leaf area (19.73 cm2 and 18.23 cm2), fresh herb yield per hectare (246.62 q and 244.54 q) and essential oil yield (269.97 kg and 239.98 kg) which was statistically on par with 75% N + vermicompost 4 t/ha + Arka microbial consortium.