05/30/2026
Let’s talk about Anhydrous Ammonia (Gas). 👇🏼
What is it? Some refer to it as gas, others Anhydrous. Going to get very scientific here but hang on. Anhydrous Ammonia a chemical compound of nitrogen and hydrogen with the formula NH₃. When injected into the soil, it quickly reacts with water in the soil to form ammonium hydroxide, NH4OH. The ammonia binds with the organic matter to form ammonium (NH4+). Then during the growing season, soil microorganisms convert the ammonium to nitrate, which is the main form taken up by plants. Anhydrous can stay in the soil for up to 135ish days and is 82% nitrogen.
Why do we use it? Anhydrous is one of the most efficient sources of nitrogen fertilizer that can be applied to corn. There are other sources of nitrogen, and we even use some of those as well, but the majority of what’s applied on our farm comes after the corn is up in the spring while the corn is small enough that if driven over it will pop back up (or some farmers apply it in the fall or spring pre-planting).
Why don’t some people like to use it? As with anything, there are risks with using it. It is a dangerous gas. I don’t know anyone who enjoys dealing with it. It’s something that most who deal with it take seriously when it comes to handling. One slip or missed step could lead to life-changing consequences. There are plenty of news articles about accidents related to NH₃ if you care to look it up.
Overall, we apply Anhydrous Ammonia on our corn acres and have found it to be the best for our operation. We are careful when applying, moving tanks, and hooking up tanks to keep everyone safe. We feel it is the most cost-effective (in most years) and efficient way to feed our corn the right amount of nitrogen it needs to get through the growing season. 🌽