Evaluation of sunnhemp (Crotalaria juncea) as green manure /amendment and its biomass content on root knot nematode (Meloidogyne incognita) in successive crop brinjal

Abstract

In the present study an attempt was made to evaluate the effect of sunnhemp (Crotalaria juncea) as green manure and amendment along with the quantity of biomass incorporated upon root knot nematode in successive crop brinjal (2013-14 and 2014-15). Application of sunnhemp as green manure or as amendment decreased nematode infestation in soil as well as in successive crop brinjal after the evaluation of results of the experiment. Sunnhemp as green manure was found to be more effective than its use as amendment for reducing infestation in soil and roots. When sunnhemp was green manured/amended in soil shoot height and shoot weight were also increased. For reduction of nematode infestation in soil and roots of successive crop brinjal incorporation of biomass @ 75gm/kg was found to be effective.