The key to uniform application of anhydrous ammonia

decrease font size  Resize text   increase font size       Printer-friendly version of this article Printer-friendly version of this article

For uniform application of anhydrous ammonia, it's important to understand the system you're using, said an agricultural engineer at University of Missouri's recent Crop Management Conference in Columbia.

Division of flow is often the cause of non-uniform application, said Mark Hanna of Iowa State University Extension.

"Because you have not just a liquid but a liquid and gas trying to flow through the system, it can be very challenging to disperse it uniformly," he said.

For producers using an older, conventional open-chamber manifold, Hanna suggests looking at newer systems that might do a better job. However, there are also changes that can be made in the current system.

"If you are still using the open-chamber style model, recognize there are different areas of that manifold that will have high and low outlet flows," Hanna said. "Some people just sequentially hook up hoses to the application ports. That will almost guarantee high and low spots, so mixing and matching the hoses to the outlets rather than sequentially attaching them can help."

Hanna offered additional recommendations: keep hose lengths equal; when using a heat exchange flow controller, match vapor lines with outlet ports that have a lower application rate; and do your homework to fully understand your application system.

Hanna says many producers don't like to use anhydrous ammonia because of safety hazards and the fact that gases boil off as liquid moves through the system and pressure drops.

"It makes it a little bit more difficult to distribute that way," Hanna said. "People are often a little bit nervous about how uniform their distribution is and that is a reason why some change to other forms of nitrogen."

However, because of its high concentration of nitrogen and its lower cost compared to other sources of nitrogen, many people continue to use it, he said.

"Respect the material and follow the proper guidelines to be successful," Hanna said. "There is also a slight possibility of nitrogen loss through shallow application or ammonia burn with plants, but otherwise it is a pretty good product."

Buyers Guide

Doyle Equipment Manufacturing Co.
Doyle Equipment Manufacturing prides themselves as being “The King of the Rotary’s” with their Direct Drive Rotary Blend Systems. With numerous setup possibilities and sizes, ranging from a  more...
A.J. Sackett Sons & Company
Sackett Blend Towers feature the H.I.M, High Intensity Mixer, the next generation of blending and coating technology which supports Precision Fertilizer Blending®. Its unique design allows  more...
R&R Manufacturing Inc.
The R&R Minuteman Blend System is the original proven performer. Fast, precise blending with a compact foot print. Significantly lower horsepower requirement. Low inload height with large  more...
Junge Control Inc.
Junge Control Inc. creates state-of-the-art product blending and measuring solutions that allow you to totally maximize operating efficiency with amazing accuracy and repeatability, superior  more...
Yargus Manufacturing
The flagship blending system for the Layco product line is the fully automated Layco DW System™. The advanced technology of the Layco DW (Declining Weight) system results in a blending  more...
Yargus Manufacturing
The LAYCOTE™ Automated Coating System provides a new level of coating accuracy for a stand-alone coating system or for coating (impregnating) in an automated blending system. The unique  more...
John Deere
The DN345 Drawn Dry Spreader can carry more than 12 tons of fertilizer and 17.5 tons of lime. Designed to operate at field speeds up to 20 MPH with full loads and the G4 spreader uniformly  more...
Force Unlimited
The Pro-Force is a multi-purpose spreader with a wider apron and steeper sides. Our Pro-Force has the most aggressive 30” spinner on the market, and is capable of spreading higher rates of  more...
BBI Spreaders
MagnaSpread 2 & MagnaSpread 3 — With BBI’s patented multi-bin technology, these spreaders operate multiple hoppers guided by independent, variable-rate technology. These models are built on  more...

Comments (0) Leave a comment 

e-Mail (required)


characters left

Smooth Wall Grain Bins

Meridian’s SmoothWall bins are the ultimate storage bins, used to handle and store fertilizer, grain, feed and seed, and extend ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form