  In this paper, we explore the entropy uncertainty for qutrit system under
non-Markov noisy environment and discuss the effects of the quantum memory
system and the spontaneously generated interference (SGI) on the entropy
uncertainty in detail. The results show that, the entropy uncertainty can be
reduced by using the methods of quantum memory system and adjusting of SGI.
Particularly, the entropy uncertainty can be decreased obviously when both the
quantum memory system and the SGI are simultaneously applied.
