A study was undertaken to assess the impact of farmers’ participatory trials on Integrated Crop Management (ICM) technology on the knowledge level of rice growing farmers under rainfed rice based cropping system in Koderma district of Jharkhand. The knowledge level of the farmers was measured on three major parameters of ICM viz., a) improved crop management practices, b) improved pest management practices, and c) improved weed and rodent management practices. The results indicated that there was remarkable change in the knowledge level and attitude of the rice growing farmers in all the three aspects of ICM after on-farm trials. The mean knowledge level was increased from 22.66% (pre-exposure) to 81.66% (after exposure) indicating a change of 59.0% in the overall knowledge level of the farmers about ICM

Keyword: Farmers participatory; In