Author(s): Prawal Pratap Singh Verma, RC Padalia, VR Singh and L ur-Rahman

Abstract: The experiment was laid out in randomized block design with three replication at CSIR-Central Institute of Medicinal and Aromatic Plant Research Centre Purara, Bageshwar (Uttrakhand) during 2014-15 with the objectives to study the effect of different level of combined doses of nutrients, viz. nitrogen and phosphorus on herb and oil yield of menthol mint. The treatments combination is five combined doses of nitrogen and phosphorus, viz. T₁ (control, N₀ P₀), T₂: N₅₀ P_20, T₃: N₁₀₀ P_40, T₄: N₁₅₀ P_60, T_5: N₂₀₀P₈₀. Result indicated that the better expression of plant growth and oil yield characters was observed in T_5: N₂₀₀P₈₀ followed by T4: N₁₅₀ P₆₀.