U.S. 30-year bonds decreased for the second day in a row on Thursday leading a rout in Treasuries in March before the last of three auctions planned on this week, where the government is planning to sell $13 billion of the securities. U.S. 30-year yields grew 0.01 percentage points, or one basis point to 3.23% earlier on Thursday London session, while the benchmark 10-year notes rose 0.01 percentage point to 2.03%.