Agricultural commodity trend might curb direction

Coffee,oat future is showing price spike for some days. I wonder whether this is a hint of rebounding for agricultural commodity.

Yesterday's economic indicators were not good, bond yield got low, and crude oil plunged, but grain complex showed strength. 

Spring wheat outperformed winter wheat starting harvest in june. Coffee soured the most, oat and miniapolis spring wheat behind.

Given so pressured price level, despite of uncertainty in economy, additional weakness apprears to be limited.