-- Norway-based fertilizer distributor and producer Yara International has announced that it will not pursue the acquisition of nitrogen fertilizer producer Terra Industries following a higher bid from CF Industries. -- We are affirming the 'BBB' long-term and 'A-2' short-term corporate credit ratings on Yara and removing the ratings from CreditWatch Negative. -- The negative outlook reflects uncertainty as to how the company will achieve its growth strategy, given the attempt at acquiring Terra Industries; Yara has low financial headroom at the rating to absorb any unforeseen debt or partially debt-financed acquisitions. LONDON (Standard&Poor's) March 15, 2010--Standard&Poor's Ratings Services said today that it affirmed the 'BBB' long-term and 'A-2' short-term corporate credit ratings on Norway-based fertilizer