The Mosaic Company (MOS) today reported first quarter fiscal 2010 earnings per share of 23 cents, well below the Zacks Consensus Estimate of 33 cents and the year-ago earnings of $2.65. Sales Net sales in the quarter were $1,457.2 million, declining roughly 66% year over year. The decline was broad-based across all the business segments and is mentioned in details below. Phosphates sales were $814.4 million, declining roughly 69% year over year. The decline was due to the lower average diammonium phosphate (DAP) selling price, although the sales volume remained the same. The average DAP selling price was $276 per ton, compared to $1,013 in the year-ago quarter. Sales volume remained roughly flat year over year at 2.1 million tons. Production volume declined 13% year over year to 1.8 million tons. Potash sales were $333.3 million, declining approximately 66% year over year. The decline ...