Compass Minerals, Overland Park, Kan., posted a third-quarter loss of $2.1 million compared to year-ago net income of $10.6 million. The company said the decline resulted from lower year-over-year earnings in the company’s plant nutrition businesses due to lower-than-expected sales volumes driven by dry weather conditions and the impact of extreme wildfires in several of the company’s key agriculture markets. It also had a $7.4 million inventory adjustment negatively impacting its Plant Nutrition North America segment.