Community service activities (PKM) are beneficial if partners implement the PKM work. Therefore, after the PKM activities have passed, it is necessary to evaluate the use of liquid organic fertilizer with an eco-farming starter (POC). This evaluation aims to determine the extent to which POC fertilizer is used in increasing production, production value, and performance of caisim mustard plants in farming in Bug-bug Village, Lingsar District. The evaluation technique applied in evaluating PKM implementation is the tiling technique. The tiles measure 100cm x 100cm consisting of 2 (two) tiles using POC and 2 (two) tiles without POC. The evaluation results show that the use of POC is still applied by 60% of the total number of PKM participants and can increase production and production value by 26.67%. An incremental benefit-cost ratio value of 12.47 is obtained, meaning that the use of POC can attract farmers' interest in implementing it because can increase production value.