LONDON, July 20 (Reuters) - Government bond supply in the euro area slows next week, with just three issuers scheduled to sell debt.
* On Monday, Belgium plans to sell up to 3.6 billion euros of new debt including 50-year bonds.
* Euro zone benchmark issuer Germany on Wednesday will auction 4 billion euros of five-year bonds.
* Italy is scheduled to sell inflation-linked and zero-coupon bonds on Thursday. (Reporting by Dhara Ranasinghe, Editing by Abhinav Ramnarayan)