Iowa Soil Temperatures

What is Soil Temperature?

Soil temperature is simply the measurement of the warmth in the soil. It is also the main factor that drives the germination of seeds. Soil temperature impacts the rate of nitrification. It also influences soil moisture content, aeration, and the availability of plant nutrients. The ideal range for nitrification, plant growth, and planting is between 65 to 86 degrees Fahrenheit.

How are soil temperatures measured?

Soil thermometers are the most common tool for measuring soil temperatures. Temperatures are measured four inches below the soil surface, under bare soil.

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