OMAHA, N.E.(KELO)- The Iran war is sending shock waves that are being felt in South Dakota.

Iran has closed off shipping in the Straight of Hormuz, giving it a choke hold on oil and fertilizer shipments.

As farmers prepare for spring planting, that’s changing the dynamics of the growing season.

Economist Ernie Goss:

Farmers say higher input costs could be offset by timely rains and a good crop.