Wheat Argentina  Argentina’s wheat harvest is 54 percent complete after advancing 8.5 percent last week. Yields in the center and south of the agricultural area continue to surprise with values 0.3-2.03 MT above expectations. In the nucleus region, with harvest nearing the end yields are averaging 5.3 MT/ha, with minimum reported values of 4.5 MT/ha and maximum yields of 7.3 MT/ha. The South of Buenos Aires province is just starting to harvest with first yields slightly above expected.  Given the above scenario, the grain exchanges again increased their crop estimates. The Buenos Aires Grain Exchange raised its forecast from 20.3 MMT to 21 while the Rosario Grain Exchange increased its projection from 20.4 MMT to 22.1 MMT...