This is FIRST's 25th year of organizing corn and soybean seed trials. To celebrate, we have been looking back at reporting over the years. This month, we'll review the planting dates in the program from 2008-2020. These graphics show the typical distribution of seeding dates and the effects of weather in each year.
Both maps have the same scale for planted day of the year, with cooler blues for April-early May plantings and warmer oranges for late May-June. Typically, corn comes first for FIRST, as seed is due to Field Managers on February 15, while soybean seed is due March 1.
Click on the figures to go to the online interactive versions of these maps — where you can zoom in on the map, start and stop the animation, and hover over any location to see the plant and harvest dates and grain yield at harvest.