This research aims to gain palm oil seedling that fulfill quality standard while give liquid complementary fertilizer though the seedling that stressed by flooding. The research was done in a Completely Randomized Design 3x3 and 3 replication. The first factor is seedling age, there are u0 = 3 months, u1 = 5 months, and u2 = 7 months age of palm oil, and the second factor is concentrate of liqu…