GRAINS-Soy futures rally as dry Argentina crop weather fuels supply concerns
* Soybeans underpinned by dry weather in Argentina
* Corn bounces from losses on Thursday
* Attention turns to next week's USDA supply-demand outlook (New throughout, updates prices, market activity and comments to close)
By Tom Polansek
CHICAGO, March 5 (Reuters) - U.S. soybean futures prices pushed higher on Friday, notching a fourth straight weekly gain, as dry weather in Argentina continued to fuel worries about global supplies of the oilseed.
Corn futures rebounded from a three-week low reached in the previous session, while wheat futures also edged higher.
Concerns increased over crops in Argentina, the world's top soymeal exporter, as Commodity Weather Group said a rain deficit was seen "leading to severe yield loss" for 30% of the soy belt in the coming 10 days.
Weather firm Maxar said below-normal rains are forecast in Argentina over the next 15 days, stressing second-crop soybeans.
Some traders also adjusted positions ahead of the release of monthly U.S. Department of Agriculture (USDA) crop forecasts on Tuesday. The agency is expected to further lower its estimates for 2020/21 ending stocks for soybeans and corn, according to a Reuters survey of analysts. [nL2N2L203A
Record U.S. soybean crushings and exports are already projected to shrink U.S. soybean stocks to a mere 9-1/2-day supply ahead of the next North American harvest.
"Old-crop soybeans are still in a situation where we really don't have any room to give," said chief ag market strategist at Zaner Ag Hedge Group.
The most-active soybean contract on the Chicago Board of Trade (CBOT) closed up 19-1/2 cents at $14.30 a bushel. The contract had climbed to a one-week high on Thursday, nearing last week's 6-1/2-year peak.
CBOT corn jumped 13 cents to $5.45-1/2 a bushel, after falling on Thursday to its lowest price since Feb. 11 after the USDA reported poor weekly U.S. export sales. The smaller-than-anticipated sales signaled that high corn prices are reducing demand, traders said.
On Feb. 9, the most-active corn contract reached $5.74-1/4, the highest price since June 2013 on concerns about tight old-crop supplies.
CBOT wheat ended up 2 cents at $6.53 per bushel on Friday. (Reporting by Tom Polansek in Chicago, Gus Trompiz in Paris and Naveen Thukral in Singapore Editing by Kirsten Donovan and Matthew Lewis)
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