Effect of nitrogenous soil amendments on the parasitic activity of Catenaria anguillulae on root knot nematode*

Regional Research Station, Assam Agricultural University, Diphu-782460, Assam, India.

* The work was undertaken at the Nematology Lab., Plant Protection Institute, Agricultural Research Centre (USDA), Beltsville, Md. 20705, U.S.A.