Beside small correction move in 2014, it was pretty much a nose dive that cut corn value in more than half.
Since October 2014, Corn has been bouncing around the 22-23$ , which is also the 127 extension for the first part of corn's decline (Aug 2012- Jan 2014).
The second time corn bounced from the 22$ it also broke out of a minor weekly downtrend line.
Last week, Corn spiked below 22$ and closed above it, creating a weekly false break and a weekly Outside Bar that could be a trigger for a entry for those who seek to trade this triple bottom setup. The we see in the and the being oversold can support this scenario.
With stop loss below 21.5$ the initial target level will be the 50 line near 25$ (assuming it'll break above the Fast line - the first confirmation signal)
If the price will close above 25$, it could provide a longer term signal for a deeper correction move in corn prices.