Impact of fertilizer dose and spacing on oil yield of Japanese mint (Mentha arvensis L.) var. Sarj

Because of expanding market for high value rich crops, opportunities have increased for the production of medicinal herbs. A field experiment at the Sam Higginbottom Institute of Agricultural, Technology and Sciences during 2015-16 to study the impact of fertilizer dose and spacing on oil yield of Japanese mint (Mentha arvensis L.) var. Sarj. The total herbage weight (fresh and dry) per hectare and oil yield (kg/ha) were taken after final harvesting. The total fresh and dry herbage weight was observed better in spacing 60X60 cm with fertilizer doses of N100, P140, K80. The maximum oil yield (kg/ha) was found in treatment T2 (149.67 kg/ha) followed by treatment T6 and T9 (132.33 kg/ha) under spacing 30X30cm and minimum was observed in T2 (108.67 kg/ha).