Sioux City-Terra Nitrogen Co. LP reported net income for the third quarter ending Sept. 30, 2009, was off 84 percent to $17.3 million ($.64 per limited partnership unit) on sales of $101.5 million, versus the year-ago $106.2 million ($3.41 per unit) and $246.6 million. Nine-month net income was $121.4 million ($4.18 per unit) on sales of $409.6 million, versus the year-ago $317.9 million ($11.35 per unit) and $677.8 million.