A new agreement between the U.S. and Brazil means U.S. wheat farmers will compete on a level playing field to sell their crop to that South American nation. U.S. Wheat Associates and the National Association of Wheat Growers welcomed the news that Brazil has agreed to a duty-free tariff rate quota for wheat, a longstanding obligation under that nation’s World Trade Organization commitments.The agreement opens an annual opportunity for U.S. wheat farmers to sell up to 750,000 metric tons — about 28 million bushels — of wheat tariff-free to Brazil under the TRQ, the two organizations said in a press release.