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West Central Indiana | I haven’t any real proof that it does but my farm averages sure shot way up last couple years that I’ve done it. Some sandy farms actually out yielding many timber clay soil farms. What I’ve been doing is cutting my NH3 back to around 110-125# and getting the remaining units with urea/Dap/ams. Spread the dry blend ahead of the planter, incorporating with a pass with my ultra-till. My thinking is the urea and ams keeps the corn very happy early. Then when it runs out of gas the roots get into the NH3, which sticks around the longest and takes it to the finish line.
It’s probably always a timing thing with any form of N though. I don’t believe the bs about NH3 killing all the soil biology. Yes, it may slow things down for a very short time but I can stick a spade in the ground on what I applied last week and it’s still full of earthworms. Anyway, I think you’ll be impressed with using multiple types of N. Maybe making a small change and not relying solely on the way everyone else does it will produce huge yield increases.
Edited by Red man1981 3/20/2025 20:30
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Does corn benefit from multiple types of N ?
