THE OPEN May beans:  5 1/2 lower May meal:  4.20 lower May soyoil:  6 higher May corn:  1 1/2 lower July wheat:  7 1/4 higher The markets opened in line with trade expectations, with the key feature that of higher oilshare and more buy wheat/sell corn trade.  Corn once again traded to new contract lows, as meal prices slumped on continued long liquidation.  On a correction note, USDA issued a change in their Feb. census crush data, lowering crush from 181.6 mln bu to 175.c mln bu.   Export inspections were released at 10:00 as follows: beans:  298,124 tmt vs. 413,957 mt week ago wheat:  320,371 tmt vs. 335, 208 mt week ago corn:  1,271,481 tmt vs. 1,270,152 mt week ago...