Nematology occupies a unique central position among the various biological and agricultural sciences because of its diverse specializations. This acclaimed book provides the basic knowledge about world of plant parasitic and free living nematodes associated with rice and soybean fields. The book is organized into five parts and deals with the introduction, distribution, methodology for survey, formulas for community analysis. The last part of the book comprises of discussion. The comprehensive material is supported by a multitude of illustrations,tables and references.