RTRS- ARGENTINE 2011/12 SOY HARVEST SEEN AT 40.9 MLN T VS 43.1 MLN T MONTH AGO - ROSARIO GRAINS EXCHANGE

BUENOS AIRES, May 10 (Reuters) - Argentina's 2011/12 soy output was expected to fall to 40.9 million tonnes, down from last month's estimate for 43.1 million tonnes due to poor yields caused by a drought, Rosario grains exchange said on Thursday.

It also cut its outlook for 2011/12 corn production to 19.0 million tonnes from 19.8 million tonnes in April.