Agricultural Training Centre, Fulia, Nadia, West Bengal, India has stopped applying organic matter in its Folk rice Conservation centre since 2013 and  floating Azolla was in use instead  as a source of organic matter.This year , we would like to stop using azolla in some fields . It gives profuse growth leading to less grain yield. Azolla is a low cost living organic matter - a floating fern fixes more than 50 kg of N per ha and its body becomes organic matter in the  rice fields.

 Pl see the article written by Dr Rina Mukherjee of ECO Earth Care Optimized, Vol 4, Issue 04, January 2015, New Delhi.