BRIEF-RESEARCH ALERT-Citigroup raises Mosaic, Potash Corp to buy

May 31 (Reuters) - North American Fertilizers:

* Citigroup raises Mosaic Co to buy from hold; target price to $85 from

$84

* Citigroup raises Potash Corp to buy from hold; target price to $67

from $61

* Citigroup raises Agrium Inc target price to $96 from $94

* Citigroup upgrades Mosaic, Potash Corp on tariffs and electricity shortages

in China, the impact of delayed plantings in the US

* Citigroup upgrades Mosaic, Potash Corp on improved clarity regarding the

absorption of new supply



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