How do I make my zoysia grass thicker and greener?

Hello, I'm curious about how one might make their zoysia grass thicker and greener. Could you please provide some tips or advice on achieving this? I've noticed that my lawn has been looking a bit dull lately and I'd like to restore it to its former vibrant state. Are there specific fertilizers or lawn care practices that you recommend for promoting thicker, greener zoysia grass? Thank you for your time and expertise.