Wheat hits near 14-year peak on Russia-Ukraine supply disruptions

* Grain buyers seek alternative supply as Ukraine war intensifies

* Traders worry conflict threatens Russia, Ukraine plantings

* Soybeans also rise as conflict threatens sunoil supplies

CHICAGO, March 1 (Reuters) - Chicago Board of Trade wheat futures soared by the daily limit to their highest level in almost 14 years on Tuesday as traders feared prolonged disruption to global supplies following Russia's invasion of fellow grain exporter Ukraine.

Corn also climbed by its daily limit to trade near a 10-month peak as the market grappled with the halt to shipments from Ukraine as well as the risk that a lasting conflict could hamper spring plantings.

Buyers of animal feed corn have rushed to book European Union supplies to replace Ukrainian exports blocked by Russia's invasion, traders said. With the bloc also sensitive to loss of Ukrainian supply, though, importers may have to look elsewhere for alternate supplies.

"As the conflict wears on, there's basically no shipping going out of Ukraine," said Don Roose, president of broker U.S. Commodities. "The trade's dialling in how long will that go on."

The most-active CBOT wheat contract was up by the 50-cent limit at $9.84 a bushel by 12:15 a.m. CST (1815 GMT). That was the highest price since April 2008 and surpassed a 13-1/2 year peak struck on Friday.

The most-active corn contract was up by the 35-cent limit at $7.25-3/4 a bushel, the highest price since May 12. CBOT soybeans rose 44-1/2 cents to $16.81-1/4 a bushel.

Together, Russia and Ukraine account for about 29% of global wheat exports, 19% of world corn supplies and 80% of world sunflower oil exports. Investors worry the conflict in Ukraine and sanctions against Russia may prevent farmers from planting crops like corn this spring.

"I think about farmland as battlefields, and some of that ground just won't be available," said Stephen Nicholson, global grain and oilseed strategist for Rabobank.

"It's a challenge putting a crop any place in the world, let alone in the middle of a conflict." (Reporting by Tom Polansek in Chicago, Gus Trompiz in Paris and Naveen Thukral in Singapore; editing by Uttaresh.V, Susan Fenton and Emelia Sithole-Matarise)