aNH3 Equaply® Anhydrous Delivery System

Contact Information:
For more information about the aNH3 Equaply® applicator, please contact us at or by phone at 217-224-5717.

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There is a lot of uncertainty as to how much anhydrous can be injected with the currently available openers and knives. Application rates go from 30 lb. of N per acre at 4 mph for wheat to 280 lb. of N at 10 mph for corn on corn.

We believe that "mole" knives made by Hi-Pro Mfg. of Watseka, Illinois can incorporate the highest rates. But many farmers can't use mole knives, either because of the horsepower requirement or because of soil disturbance. Various mid row banders are used, but they are probably not as effective as "mole" knives at the highest rates. Yetter, Dawn, and Deere have new opener designs which are worth considering. The trick is incorporate as much of the vapor as possible since vapor tends to blow away. The correct method of tillage at the opener is key to keeping vapor in the soil.

In the Spring of 2010, aNH3 had two experimental bars operating in Illinois, each with 12 rows of mole knives for strip till and 6 Yetter openers for split side dress. We simultaneously generated the strip mounds with a small amount of anhydrous as starter while applying the bulk of anhydrous as split row preplant side dress., The Fall of 2009 did not allow strip till preplant so we had no control check. But the yield in the Fall of 2010 was exceptional for our land.

We are often asked about the effect of placing orifices at the ends of knives. There are no patent concerns about this method but we have not liked it. The high velocity may cause the vapor to "bounce" at the point of impact. The small orifice creates a high velocity stream of liquid and vaporous anhydrous at the exit. But now we may have to "eat crow". One of our Midwest dealers has had great luck with orifices at the ends of Dawn openers, ignoring our views. Add to that, a dealer working with small grain seeders reports that the orifices at the ends of injection tubes greatly reduce "smoking". So maybe we have been wrong!

The stream of anhydrous exiting the orifice is from 10% to 20% vapor by weight, dependent on the temperature in the nurse tank. But the volume percent of vapor is over 99%.