114 Mulberry St. • Yankton, SD 57078


As a crop producer, you're faced with endless choices about fertilizer, crop protection products, seed, soil sampling, and crop scouting. Count on Yankton Ag Service's knowledgeable agronomy specialists to help you maximize your return on investment. We pride ourselves on bringing the best possible service in the area and look forward to helping the grower reach higher yields and improving efficiencies.

Yankton Ag Service offers:
  • NK®, Mycogen®, Dekalb®, Prairie Brand®, and Asgrow® seeds. Our seed specialists can help you pick the best seed varieties and seed placement for your farm.
  • Fall seed pricing programs, promotions, early order discounts, and a bulk soybean seed delivery service to supply in-season needs.
  • Test plots to compare varieties and hybrids.
  • Dry and liquid fertilizers including application services.
  • N, P, K, and lime recommendations based on soil sampling.
  • A full-service crop protection products program, including application services and a competitive chemical program for producers.
  • Seed/Seed Treatments.
  • Soil Sampling/Grid Sampling.
  • Custom Application (variable & conventional).

  © 2019 Yankton Ag Service, Inc.  •  114 Mulberry St.  •  Yankton, SD 57078 site: Community Connections Inc.