May 6 (Bloomberg) -- Cotton fell to a three-month low on signs that farmers will plant more this year than forecast by the government in the U.S., the world's biggest exporter.

Informa Economics Inc., a research company, said today in a report to clients that cotton acreage will rise to 13.081 million. In March, farmers told the government that they intended to plant 12.566 million, up 15 percent from 10.973 million in 2010. Prices have tumbled 34 percent from a record $2.197 a pound on March 7.

"Demand is not as strong as it was back in March, and supply does not seem to be a problem yet," said Jimmy Tintle, an analyst at Transworld Futures in Tampa. "Depending on the U.S. crop, we could see cotton go down further."

Cotton for July delivery fell 1.3 cents, or 0.9 percent, to settle at $1.4556 at 2:34 p.m. on ICE Futures U.S. in New York. Earlier, the commodity touched $1.438, the lowest since Jan. 18. The fiber plunged 7.9 percent this week, the fourth straight decline.

In March, Memphis, Tennessee-based Informa projected 13.13 million acres would be planted with cotton.