A field experiment was conducted for two crop cycles during 2003–2005 and 2004–2006 at the
Indian Institute of Sugarcane Research, Lucknow in subtropical India. Trichoderma viride and
Gluconacetobacter diazotrophicus amended farm yard manure (FYM) increased organic carbon
(19.44 Mg ha1) and available nitrogen (260 kg N ha1) content of soil from 14.78 Mg ha1 (OC)
and 204 kg N ha1 observed under farmer’s practice (sole N application).