The larger than usual volume across many contracts puts the exclamation point on today’s market action. USDA’s Prospective Plantings and Quarterly Stocks reports provided a lot of the impetus for a raucous day on everyone’s computer screens. Corn was bullish, soybeans were bearish, and wheat was confused as it looked for psychoanalysis.   As noted yesterday, the 31 March Prospective Plantings report is not the bible. Last year corn planted acres increased by 2.3 million (2.5 percent) above Planting Intentions, and corn is one of the more reliable outputs of the USDA survey. The cost of fertilizer (+130 percent) was the number one cited reason for why corn acres will be less than soybean acres for only the third...