Rhizoctonza and root-knot nematode (Meloidogyne Javanica) disease complex as influenced by organic amendments

Finely ground oil cakes of neem, mustard and cotton, and oat meal when mixed with autoclaved sandy soil (3% w/w) improved plant growth of tomato. Mustard cake amendment resulted in maximum plant weight compard to rest of the amendments, irrespective of Rhizoctonia bataticola or R. solani. Neem cake proved least effective. Oil cakes reduced the nematode population whereas oat meal increased it. The number of galls were least in mustard cake amendment. R. bataticola disease was decreased in all the amended soils except in simultaneous inoculation of nematode and fungus to neem and mustard amended soil; whereas R. solani was decreased only in cotton seed cake anti oat meal amended soil.