MARK DUERFELDT is an agricultural business based in Herrick, SD, offering custom farming solutions, including crop production, soil testing, and consulting services to local farmers. They focus on sustainable practices and maximizing yields.
Operator computes a Health score every night at 2 am HST. It is the one number that tells you if this shop is winning, losing, or steady. Here is how MARK DUERFELDT broke down on Apr 21, 2026.
Operator ranks every agriculture in Herrick every night at 2 am HST using reviews, response rate, and local market share.
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