The bull market in ag commodities continued through Tuesday’s data reporting deadline with drought, yield, and Black Sea export concerns driving another week of massive fund and commercial buying. Managed money traders bought 225,000 contracts across the ag markets through last Tuesday’s data reporting deadline, expanding their all-ags net long 30 percent in the process to a net position of over 1 million contracts long. Corn was again by far the biggest driver of the increase in long positioning, followed by soybeans and soymeal.   Last week, managed money traders aggressively expanded their corn longs, buying ...