Texas winterizer for Bermuda grass..? Any suggestions on what kind of winterizer fall/ winter for TEXAS lawns??...

Any suggestions on what kind of winterizer fall/ winter for TEXAS lawns?? Also what are the numbers on the fertilizer loads I should look for and what kind of winterizer that will wipe out the weeds and gross the lawn come up nice for spring?????
Can anyone narrate me how to..?
Answers:    Studies perform at the Universities of Carolina and Texas have shown that "Tifgreen" and "Tifdwarf" Bermudagrasses enjoy improved cold roughness if fertilized in tip out with a fertilizer have the ratio 4-1-6. These tests showed that nitrogen is crucial for a plant to take within additional potassium which help to improve overall cold tolerance. So look for a fertilizer that match this ratio (i.e. 12-3-18, 16-4-24, 20-5-30, etc.).