There is still quite a bit of yield to be defined for soybeans in the next month. With most of the crop entering seed filling, weather conditions will be critical with respect to final seed weights.
Yield estimates prior to harvest can be helpful for producers to make informed management decisions for the crop while there is time before harvest. As sorghum gets closer to maturity, yield estimates will be more accurate. Nonetheless, you can start taking yield estimations three to four weeks after flowering.