Answers from the AGvisorPRO network:
May 19, 2023
Yes. You can dissolve dry urea in water and use the solution as you would any liquid or dry nitrogen fertilizer: banded (surface or sub-), broadcast & incorporated, foliar, injected in irrigation water, etc. Urea IS a liquid at time of manufacture, then dried, cooled and pelleted for concentration, storage & transportation purposes.
When dissolving dry urea in water to form a solution, you get an “exo-thermic” reaction. It will cool quickly (more so as concentration and agitation increase).
About a 10% N concentration is the highest you will get with ambient temp water and mild circulation. 20% + is possible with heat, time & agitation.
It is a very common practice where UAN is not easily available or higher priced, and where any NO3 (nitrate) form of N is undesired or necessary.
The Question:
May 19, 2023
Maximizing Yield Prediction and Banding Melted Urea for Optimal Split Nitrogen Application
So with a split nitrogen application I am looking at melting urea as UAN in bulk is not as easy to source. And from my understanding urea is still usually the cheapest source per pound of N. Hypothetically if I were to do 75% of my N as my weather station and moisture probe increases the yield prediction. How much could I get through application by sprayer ? Or would I need to purchase banding equipment? Agronomically can I band melted urea ? Let's say I have 30 lbs per acre down and need to add 90 as weather permits.
Field Crops, Row Crops
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Field Crops, Row Crops
Fertilizer, Soil, Nutrients
