Although Russian wheat prices continued to erode, the overall effects were tempered by a firmer ruble. Bulgarian farmers have started planting corn, but they intend to reduce the crop's acreage by about 10 percent in favor of another crop. Milling Wheat The Black Sea market remained essentially unchanged from last week. Russia’s domestic market continued to erode, losing about 150-200 rubles ($3-4/MT), but the effect on the export market was negligible due to a firmer ruble. The barrier imposed by the Turkish government on Russian wheat imports (if maintained) will certainly add weight on the old crop prices in the coming weeks/months. Ukraine has exported about 14 MMT since the start of the campaign and the remaining surplus is less than...