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Status Update on Soil Temperatures

November 3, 2020 2:35 PM
Blog Post

When it comes to applying fall anhydrous ammonia or manure with a high ammonium N content (like liquid swine manure), we recommend that soil temperatures at a 4-inch depth are below 50° F and continue to trend cooler to help minimize nitrogen loss prior to the next growing season. While soil temperatures at the 4-inch depth dropped down into the low 40s and even upper 30s across the state of Iowa by November 2, warmer air temperatures this week will raise soil temperatures, possibly above the 50° F threshold.

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