Effect of Nitrogen Application and Spacing on Plant Height, Spread, Dry Matter Accumulation and Fresh Herbage Yield of Patchouli (Pogostemon cablin Benth.) Under Humid sub-tropical Climate of Tripura

Abstract

A field experiment was carried out during February–July 2012, at Nagicherra, Tripura (West), to study the effect of nitrogen levels and plant geometry on plant height, spread, dry matter accumulation and fresh herbage yield of patchouli (Pogostemon cablin Benth.) under humid sub-tropical climate of Tripura. Results revealed that application of 140 kg nitrogen/ha under square planting (50 × 50 cm spacing) recorded maximum plant height, number of leaves, number of primary branches, plant spread, dry matter accumulation and fresh herbage yield of patchouli as compared to all other nitrogen levels and planting geometry.