1ICAR Research Complex for NEH Region, Sikkim Centre, Gangtok, Sikkim-737102
2Palli Siksha Bhavana, Visva Bharati, Shantiniketan, West Bengal
*Corresponding Author: Shaon Kumar Das, Scientist, Senior Scale (Agril. Chemistry/Soil Science), ICAR Research Complex for NEH Region, Sikkim Centre, Gangtok, Sikkim-737102 E-mail: shaon.iari@gmail.com