A bipartisan group of rural lawmakers launched an effort Thursday to try to force the House to take up the five-year farm bill that passed out of the House Agriculture Committee.

The group is seeking support for a discharge petition that would put the farm bill on the calendar, whether or not House GOP leaders approve. The effort comes as the heads of the House and Senate Agriculture Committee try to write a compromise farm bill by Sept. 10.

House Speaker John Boehner (R-Ohio) said Thursday that there are not 218 votes in the House for a farm bill given conservative opposition to spending and liberal problems with food stamp cuts.

Reps. Bruce Braley (D-Iowa), Rick Berg (R-N.D.), Chris Gibson (R-N.Y.) and Peter Welch (D-Vt.) are leading the discharge effort. Rep. Kristi Noem (R-S.D.) is gathering signatures from the GOP side.