Sioux City-Terra Industries Inc. said March 4 that it has resumed production at its Donaldsonville, La., manufacturing facility, which has been idle since Dec. 9, 2008. Terra had elected to idle the plant for needed repairs during a period when it was more economical to import ammonia to fulfill ongoing sales commitments that would normally be met with Donaldsonville production. Repairs have now been completed and inventory has been reduced, and under current market conditions it has become economical for Terra to restart the facility. The Donaldsonville facility has the capacity to produce 500,000 st of ammonia per year.