Vol. 11, Issue 10 (2022)

Author(s):
Mahak Chandwani, Dr. YK Dewangan, Dr. Arti Guhey and Dr. VB Kuruwanshi

Abstract:
Mentha is an aromatic perennial herb belongs to family Lamiaceae. Japanese mint (Mentha arvensis L.) accounts for more than 80 per cent of total area than other species. It is one of the most extensively cultivated mint species all over the world due to its high menthol content. A field experiment was conducted at Department of Plant Physiology, Agriculture Bio – chemistry, Medicinal and Aromatic Plants, IGKV, Raipur (C.G.) during rabi season of 2021-2022 to study the effect of nutrients, sulphur and plant growth regulators on oil yield of mint (Mentha arvensis L.). The randomized block design was used to conduct the experiment with three replications. There were nine treatments viz., T₁ (Control), T₂ (NPK @ 90:50:40 kg ha^-1), T₃ (NPK @ 110:60:50 kg ha^-1), T₄ (T₂ + GA3 @ 140 ppm ha^-1), T₅ (T₃ + GA3 @ 200 ppm ha^-1), T₆ (T₂ + foliar application of NPK (19:19:19) @ 0.5% with one application), T₇ (T₃ + foliar application of NPK (19:19:19) @ 0.5% with two application), T₈ (T₂ + Sulphur @ 15 kg ha^-1), T₉ (T₃ + Sulphur @ 25 kg ha^-1). The variety was CIM-Kranti All the treatments significantly influenced most of the growth and yield components of mint. The plant height, number of leaves per plant, crop growth rate and specific leaf weight were highest with the application of NPK @ 110:60:50 kg ha^-1 + sulphur @ 25 kg ha^-1 (T₉). The study also revealed that Japanese mint treated with T₉ (T₃ + Sulphur @ 25 kg ha^-1) showed maximum herbage yield (158.4 q ha^-1), oil yield (116.7 kg ha^-1) and net return (86,258 Rs ha^-1) which was followed by T₅ (T₃ + GA3 @ 200 ppm ha^-1).