Agro wastes have been produced in a large quantity world-wide often causing environmental problems. Therefore, the agro wastes were selected as the nutritive biomass for the cultivation of the C. versicolor (L.). Parthenium hysterophorus was the best in production of C. versicolor when it was mixed with the rice straw. This book is helpful for mushroom cultivars as well as for the plant pathologists and for the agro waste management companies.