CHICAGO, March 4 (Reuters) - Basis bids remained largely unchanged for corn and soybeans across the U.S. Midwest on Wednesday as futures prices sagged, dealers said.

• Farmer sales of corn slowed a bit as prices pulled back, a broker said.

• Chicago Board of Trade May corn CK26 futures were down 3-1/2 cents at $4.43 per bushel around midday. May soybeans SK26 eased 3/4 cent to $11.69-3/4 per bushel.

• U.S. output of corn-based ethanol declined in the latest week, the Energy Information Administration said.

Basis values are quoted against CBOT futures in cts/ bu:

NC = Not comparable, DP = Delayed price, N/A = Not available,

F = January, H = March, K = May, N = JulyQ = August, U = September, X = November, Z = December

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LINKS: 0#USCSHGRN-PM

For U.S. forward basis spreadsheets, please click:

CORN/BASIS, SOYA/BASIS, WHEAT/BASIS, MILO/BASIS

- CBOT corn report COR/

- CBOT soybean report SOY/C

- CBOT wheat report WHE/C

- U.S. grain barge freight values BG/US

- U.S. Midwest cash grain PM GRA/PM

- U.S. CIF/FOB Gulf Grain GRA/F

(Reporting by Tom Polansek; Editing by Aurora Ellis)

((Thomas.Polansek@thomsonreuters.com))