THE OPEN July beans:  3 1/2 lower July meal:  2.50 lower July soyoil:  5 lower July corn:  5 lower July wheat:  1/2 lower The markets opened on a mixed note with prices turning both sides of even after a defensive PM session start.  The corn sales announcements were likely already factored into current prices, allowing for longs to book profits even as buyers sought coverage.   May options will expire at the close of business today, with first notice day one week from now.  Political stories continue to filter into price action, with the Biden administration pushing US farmers to set aside 4 mln more acres of crop land for CRP, and biodiesel/biofuel stories remaining supportive.  ...