Studies on organic farming in maize- sunflower- greengram cropping system were carried out for two consecutive years (2003-04 and 2004-2005) at S.V. Agricultural college farm (ANGRAU), Tirupati (Southern Agro-Climatic Zone of Andhra Pradesh). . In these investigations, maize was grown during late kharif season ,Sunflower during rabi and green gram in summer during both the years. Various parameters of the performance of the cropping system were influenced differently by varied manurial practices tried. However, during both the years of investigation, the trend was largely similar between the two years, with respect to all the parameters. Performance of the cropping system in terms of productivity and economic returns was obviously the poorest with non-manuring through any source to any of the crops in the cropping system, which was statistically similar to that with foliar application of panchagavya alone to maize and sunflower. However, all the above mentioned parameters were significantly higher with the application of farm yard manure or pig manure or vermicompost in combination with foliar application of panchagavya than with any other organic manurial practices tried.