GRAINS-Corn, soybeans, wheat rally ahead of USDA report next week
* USDA likely to trim U.S. corn, soy harvest outlook Monday
* India restricts rice exports, could fuel food inflation
* Uncertainty about Ukrainian grain exports raises concerns (Rewrites throughout, adds analyst quotes, updates prices, previous SINGAPORE/PARIS)
By Karl Plume
CHICAGO, Sept 9 (Reuters) - U.S. corn, soybean and wheat futures rallied on Friday, lifted by technical buying and short covering along with spillover support from higher equities and energy markets.
Wheat and corn drew additional support from a weaker dollar and concerns about continued grain shipments from Ukraine amid Russian criticism of a U.N.-brokered export corridor deal.
Grain traders also took positions ahead of a monthly U.S. Department of Agriculture (USDA) supply-and-demand report due on Monday, when the agency is expected to lower its U.S. harvest forecasts, particularly for corn.
"Some people are thinking USDA could come in with their (corn) yield below what the trade estimates are," said Ted Seifried, chief agriculture strategist for the Zaner Group.
"We're all in agreement that the yield is going to come down. It's just a question of how much," Seifried added.
Chicago Board of Trade December corn futures were up 14 cents at $6.82-1/2 a bushel at 12:05 p.m. CDT (1705 GMT) after holding technical chart support at its 100-day moving average. The contract was poised to gain more than 2% on the week as worries about shrinking yield prospects lifted the market.
November soybeans gained 25-1/2 cents to $14.11-1/2 a bushel after sinking to a one-month low in the prior session. But the contract remained on track for a small weekly decline.
CBOT December wheat jumped 41 cents to $8.70 a bushel, on track for a weekly jump of more than 7%.
Uncertainty over a Ukrainian grain export deal underpinned markets as leaders of Russia and Turkey plan to meet next week to discuss the deal both have criticized.
Traders are also monitoring the food inflation implications a partial rice export ban by India. The country banned exports of broken rice and imposed a 20% duty on exports of various grades of rice on Thursday.
(Additional reporting by Naveen Thukral in Singapore and Sybille de La Hamaide in Paris; Editing by Rashmi Aich. Will Dunham and David Evans)
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