Suggested
and historical soybean planting dates for South Dakota. Approximate
seeding dates by region Suggested
seeding dates* Historical
acres seeded, 1970 – 94** Region Earliest Latest Desired
range 10% 50% 90% May 15 1 1 Jun 5 13 10 ----- May 5 - 25 May 5 - 25 ----- May 15 13 ----- May 30 28 ----- Jun 17
14 NW NC NE May 15 1 1 Jun 5 17 15 ----- May 5 - 25 May 5 - 25 ----- May 15 13 ----- May 28 27 ----- Jun 16 14 WC C EC May 15 1 1 Jun 10 30 25 ----- May 5 - 25 May 5 - 25 ----- May 18 13 ----- Jun 1 May 26 ----- Jun 14
13 SW SC SE * Dates are best estimates obtained from historical and research
data within a region. Insufficient or missing data is indicated by “-----“. Source: **SD Agricultural Statistical Reporting Service Compiled by: R. G. Hall, Ext. Agronomist-Crops, Plant Science Dept., South
Dakota State University, Brookings, SD.