Influence of bio-stimulants on growth and rhizome yield of black turmeric (Curcuma caesia)

Abstract

The field experiment was conducted at Horticultural College and Research Institute, Tamil Nadu Agricultural University, Periyakulam to study the effect of bio-stimulants on growth and yield of Black turmeric during 2019 – 2020. The experimental design was RBD (Randomized Block Design) consisting of five treatments replicated four times. In this study, different organic substances viz., humic acid, panchagavya, vermiwash and neem cake extract were used. Water spray was considered as control. The present study envisages that spraying of 3% Panchakavya resulted in higher plant height, number of leaves, number of tillers, leaf length and leaf breadth. The estimated fresh rhizome yield of 21.83 t ha-1 was recorded from the treatment of 3% Panchagavya and was significantly differed from other treatments.