The CBOT was mixed on Tuesday with corn and wheat firming with increased short covering and buying interest amid oversold technical conditions and recent selloff lows. Growing concerns about Russia’s refusal to allow grain export vessels into one Ukrainian port also helped put a bid under grains for the day. Despite stronger grain markets the oilseed complex pushed lower in lackluster trade amid expectations for a record-breaking 2023 U.S. crop combined with current and expected export pressure from Brazil. Weaker macro markets also worked against the soy complex with market jitters over the debt ceiling negotiations adding to risk-off trade volume. Funds were strong net sellers again in the soy complex and are thought to be flat soyb...