Cotton farmers in the U.S., the world’s biggest exporter, may boost planting by 20 percent this year after prices jumped to a record, a Bloomberg News survey showed.

Planting will rise to 13.136 million acres from 10.97 million in 2010, according to the average forecast of 18 analysts and traders surveyed this week. Cotton futures have more than doubled in the past year. On March 7, the price touched $2.197 a pound on ICE Futures U.S. in New York, the highest ever.

The U.S. Department of Agriculture will release its first survey-based forecast for cotton acreage on March 31 at 8:30 a.m. in Washington.

Forecasts for U.S.

Planted Cotton Acres 2011

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ABN Amro Clearing               11.80
ADM Investor Services           13.10
AgriVisor LLC                   13.00
Brugler Marketing               13.00
Country Hedging                 13.37
EFG Group                       13.00
FCStone                         13.2
Global Commodity Analytics      12.9
Golman Sachs                    13.3
Informa                         13.13
Kropf & Love                    13.30
Linn Group                      13.20
Northstar Commodities           14.00
Penson                          13.20
Plexus                          13.25
Stevens                         13.00
Stewart-Peterson                13.5
Texas A&M                       13.2
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Average                         13.136