Temperatures are forecast to keep dropping and fall below freezing Friday, but farmers are reminded to wait for soil temperatures to drop before applying anhydrous ammonia fertilizer. The Iowa Department of Agriculture and Land Stewardship, reminds farmers to wait until soil temperatures remain below 50 degrees before applying anhydrous ammonia fertilizer. Waiting for the soil temperatures to drop helps reduce nitrogen loss and protects the environment.

On Tuesday, soil temperatures in Washington County, four inches down were 56 degrees. For a map of soil temperatures for each county for the past three days click here.