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How Can I Effectively Dual-Apply Anhydrous Ammonia Preplant?

May 02, 2011

Question: I'm currently dual applying anhydrous ammonia preplant with 12-0-0-26 (different pump, same knife). I'm thinking of adding a nitrogen stabilizer. I can add nitrapyrin to the ammonia (N-serve) or to the 12-0-0-26 (Instinct). If I add it to the 12-0-0-26 and it is injected in the ground right above the ammonia, will it stabilize the ammonia along with the 12 parts in the liquid?

Answer: You may want to check with your local Dow AgroSciences rep. Here is some info I gathered from Dow on this issue. Since nitrapyrin inhibits nitrosomonas bacteria in the soil and does not actually “treat” the nitrogen, an application of nitrapyrin would stabilize both of his nitrogen sources IF both sources are in soil that is treated with nitrapyrin.  In this situation, it would be best to stabilize the ammonia with N-Serve. I’m assuming that a larger portion of your nitrogen is in the ammonia versus the 12-0-0-26. The N-Serve will move throughout the ammonia band in the soil and that will likely include the soil where the 12-0-0-26 is applied as well, so both sources would be stabilized.
 

 

This blog is provided as an interactive way for you to have your questions answered by our Farm Journal Agronomists. E-mail your nitrogen, soil fertility, soil density, planter set-up, scouting, and other questions to: TestPlots@FarmJournal.com.

 
 
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