The fertilizer wars persisted on Monday as Agrium Inc. vowed to continue its pursuit of CF Industries Holdings Inc., while CF resubmitted its buyout offer to Terra Industries Inc., only to be promptly rejected.

CF Industries Holdings Inc. on Friday said all three of its director nominees were elected to the board of Terra Industries Inc., significantly advancing its hostile takeover bid for the rival fertilizer company.

Developments this week could determine whether the fertilizer wars may finally be coming to an end.

Fertilizer companies caught up in hostile takeover wrangling again reached out to shareholders on Wednesday in an eleventh-hour appeal for support.

CF Industries Holdings Inc. said a fatal release of anhydrous ammonia at its Pine Bend, Minn., terminal killed one truck driver and injured another.

Terra Industries Inc. urged shareholders Monday to re-elect its board of directors and reject three people nominated by rival CF Industries Holdings Inc., which has mounted a takeover bid.

Unemployment hit 8.9 percent in April and some predict that number could climb to over 10 percent in 2009 as major companies streamline operations to combat the recession.  But how far can this streamlining really go? For many companies, revenues hinge on worker productivity, and for most operations, per-worker profits and revenues are many multiples of average employee salaries. The measure of revenue per employee also helps shed light on a firm's money-making efficiency and likelihood it will retain jobs. The best companies require  the least number of workers to make the most money.

The fertilizer industry's unfriendly takeover wrangling continued Thursday as Agrium Inc. sent letters to shareholders of competitor CF Industries Holdings Inc., encouraging them to take its "final" buyout offer.