Effect of NPK, zinc and sulphur levels on oil yield of Japanese mint (Mentha arvensis L.) var. Kosi

Abstract

A field experiment was conducted at PG Vegetable Block, College of Horticulture, Rajendranagar, Hyderabad during 2017-18 to study the “effect of different NPK, zinc and sulphur levels on oil yield of Japanese mint (Mentha arvensis L.) Var. Kosi.” The treatments comprised RDF of 100% and 75%, with and without combinations of sulphur and/or zinc. Experiment was carried out under randomized block design (RBD) with three replications. The study revealed that Japanese mint plants treated with T9 (RDF 100% + Zn 25 kg + S 25 kg ha -1) showed maximum oil yield of (12.73 ml/kg, 0.08 l/plot and 93.15 l/ha) with maximum benefit: cost ratio where as minimum was recorded with control (Without fertilizer) treatment.