Incitec Pivot Ltd. reported Feb. 15 that its major turnaround at its Waggaman ammonia plant in Louisiana will extend into March, with the target date for the plant to come back up now March 15. The earnings impact of the turnaround extension and an additional plant outage that occurred prior to the turnaround are expected to be an incremental US$15 million from previous expectations while the capital cost of the turnaround has increased by US$10 million.