author(s)
Mukesh Kumar Patra, Chinmayee Dash and Niranjan Kumar Sahoo

abstract
A replicated pot culture experiment was conducted for studying the effect of AM fungus and oilcakes with different doses of fertilizers on root knot nematode (Meloidogyne incognita) infecting black gram. All treatments significantly increased the plant growth parameters, uptake of phosphorus by plant, growth of AM fungus, extent of colonization of AM fungus in black gram roots and reduced root knot nematode population as well as number of galls over check. However, application of mustard cake @ 100g/m² + AM fungus @ 5g/m² along with 50% P and RDNK results more increase in growth parameters of both shoot and root, uptake of phosphorous by plants, colonization of AM fungus in roots and growth of AM fungus with corresponding decrease in number of root galls by and root knot nematode population over check. Thus application of mustard cake @ 100g/m² and AM fungus @ 5g/m² along with 50% P and RDNK could be the most promising management option against root knot nematode (Meloidogyne incognita) infecting black gram.