About the only thing certain about tomorrow's numbers is that we believe USDA will use the 31 March planting intentions numbers for acres, while the yield estimate might be the most elusive.USDA will releases its first MY 2015/16 supply and demand estimate for corn, wheat and soybeans tomorrow morning. The wheat marketing year runs from 1 June to 31 May, and the corn and soybean marketing years run from 1 September through 31 August. About the only thing certain about tomorrow's numbers is that we believe USDA will use the 31 March planting intentions numbers for acres. The yield estimate might be the most elusive one to pick because the corn, soybean and spring wheat crops are still being planted. The planting season has been generally goo...