Determination of micronutrients  (Mn, Fe, Cu, Zn) in tea plantations in  Sivasagar district of Assam, India.

Dr. Tara Nath Nath

Volume : II, Issue : VIII, August - 2013

Determination of micronutrients (Mn, Fe, Cu, Zn) in tea plantations in Sivasagar district of Assam, India.

Dr. Tara Nath Nath

Abstract :

Tea is the most popular beverage in the world and contains several essential micronutrients, which are beneficial for human health.This investigation was carried out to determine the micronutrient concentration of tea plantations in Sivasagar district. A total of 60 soil samples were taken from 0 to 30 cm depth of different area and 60 leaf samples were collected from the same plots as the soil samples.The concentration of micronutrients were determined by atomic absorption spectroscopy (AAS). In this study Mn, Fe, Cu and Zn concentration of soil varied within the range of 96.25 to 380.84; 378.67 to 603.22; 10.54 to 20.78 and 24.57 to 52.94 and concentration of leaf samples were ranged as 184.32 to 498.65; 492.68 to 788.38; 11.12 to 22.68 and 29.74 to 54.40 mg/kg respectively. The micronutrients concentration in the soil and tea leaves samples can be arranged in the following order Fe> Mn> Zn> Cu. It was found that the micronutrients concentration of the tea leaves was higher than soil.There was no micronutrients deficiency in the study area.