THE OPEN May beans: 1 lower May meal:  1.10 lower May soyoil:  68 higher May corn:  3 lower May wheat:  6 1/2 higher The markets opened as expected with short-covering in wheat and small liquidation in corn. Oilshare stayed on its higher path with Chinese and Malaysian prices firm, as tightening global supply continues with increased demand for food and biodiesel.    Weather continues to be dry in Argentina and too wet in northern Brazil.  Rains are due over the weekend and into next week for Argentina, but they may not be enough and soil moisture conditions may remain sub-par.   There is talk that Mato Grosso in Brazil could see some areas declared as disasters.  Cool and wet conditi...