* Short-covering also lifted futures. Commodity funds hold a massive net short position in CBOT corn futures, leaving the market susceptible to bouts of short-covering.
* CBOT July corn ended 6 cents highs at a two-week high of $3.68-1/2 per bushel. Technical buying accelerated gains as the contract pushed above its 20-day moving average.
* Forecasters expect above-average precipitation over the next 15 days across much of the US Midwest that could further delay planting. Cool temperatures over that time may also slow drying of fields.
* The US Department of Agriculture is due to release weekly export sales data early on Thursday. Analysts are expecting 600,000 to 1,000,000 tonnes of old-crop corn sales and up to 100,000 tonnes in new-crop sales.