AGUSTINUS DHOSA Pengarang I Komang Sudarma, SP., MP Dosen Pembimbing 1 Nova D. Lussy, SP., M.Sc Dosen Pembimbing 2

he purpose of this research is to determine the real effect of the administration of POC concentrations from tilapia waste on the growth and production of servo varieties of tomato. This research was carried out in the greenhouse of Politeknik Negeri kupang garden from January to April 2019. The research design used was a randomized block design (RCBD) one factor with 4 replications and 6 treatments. The treatments were applied as follows: Without POC, the POC concentration is 1.5%, the POC concentration is 3.0%, the POC concentration is 4.5%, the POC concentration is 6.0%, and the POC concentration is 7.5%. The parameters observed were plant height, stem diameter, leaf chlorophyll, flowering time, number of productive branches, number of fruits or plants, weight of fruits or plants, and diameter of fruits. The results showed that the POC concentration of 3.0% tilapia waste gave the best results on parameters of stem diameter, flowering time, number of fruits, and diameter of servo tomato. Keywords: Liquid Organic Fertilizer, Tilapia Waste, Growth, Production, Servo Tomatoes.