Corn tenaciously remained unchanged today even as the soy complex promptly retreated on improving weather in Argentina. U.S. corn basis is still competitive internationally, keeping alive some bullish momentum. General Comments Weekend rains in Argentina created significant headwinds for grain bulls today. Soybeans started Sunday night lower and finished down 6.5 cents before the morning bell. The selling pressure in soybeans pulled soymeal lower as well, and the March soymeal contract finished down $2.90/ST overnight. Corn was weaker but finished the overnight down only 0.25 cents while SRW wheat was up 0.25 cents.The day trading session featured a great deal of red as the story of the day was the modest improvement in Argentina’s weathe...