The impact of late planting on projections of the U.S. corn and soybean planted acreage is an important question right now due to the very wet and/or cold conditions so far this spring through much of the Corn Belt. We estimate the relationship of late corn planting to corn and soybean planted acreage and prevented plantings in this article. If late corn planting is 10 percent or more above average, we find that the chance of corn planted acreage decreasing is 83 percent and the average decrease is 1.4 million acres. The level of prevented plantings for corn is about 1.2 million acres larger than average when late planting is near 10 percent or more above average. This indicates that there is a reasonably high chance that planted acreage of corn will decline 2-3 million acres from expectations based on the March 30 USDA Prospective Plantings report. Likewise, we find that when late corn planting is 10 percent or more above average that the chance of soybean planted acreage increasing is 83 percent and the average increase is 0.9 million acres. However, the level of prevented plantings for soybeans also increases, offsetting much of the acreage switch. This indicates there is a reasonably high chance that planted acreage of soybeans will not change much compared to expectations based on the March 30 USDA Prospective Plantings report. It should be noted that changes to corn and soybean planted acreage could be even larger if planting conditions do not improve substantially in the next two weeks. Finally, corn and soybean acreage changes could also be impacted by policy changes made in response to reaching or not reaching a trade deal with China.
The flooding which left much of the USA’s midwest under water for much of February has had an effect on planting has represents a catalyst for short covering as a number of grains and beans are in the region of multi-year lows.