As the growing season has progressed, discussions about potential yields and crop sizes have come to dominate markets. However, it may turn out to be a memorable year for U.S. agriculture for other far less desirable reasons. We are in the last week of July with corn and soybean growers, crop watchers, market analysts and traders marveling at prospects for huge crops, supported by outstanding weather conditions over most production areas. USDA's weekly crop condition reports have consistently rated both crops at a historically high level. Expectations are being further fueled by very high yield forecasts from private crop tours across the Midwest this week. An oversold futures market looking for reasons for prices to push up from multi-year...