FSES, FTWAS.Nxt (Italy), FBiovision.Nxt (France), FCWSS, FSBSRD, Department of Soil Science & Agricultural Chemistry, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005, India, E-mail: amitavar@bhu.ac.in, Voice: 05422-6701604 (O), +91-9450346890 (M), Fax: +91-542-2368465
