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southern MN | Corn uses N to make grain.
It is a more or less real, fixed, number of about a lb per bu.
Where does that N come from?
In my wet peat type soils, if - if! - we have a dry warm spring, a nice summer, and decent fall, that deep black muck will mineralize out enough N to grow 120-140 bu corn with 0 added N.
But if we have a cold wet spring and wet summer, the critters that mineralize N can’t function. And the little N I get from the same soil I might get less than 60 bu corn with no added N.
(Dad proved this in the 1970s with hybrids from that era, but that’s another story.)
So yes, things are very magical. If one wants to present things that way.
And if you pick one year or the other, I can ‘prove’ the extreme need or almost no need for added N.
Magical isn’t it.
But the corn plant still is trying to find about 1 lb of N per bu of corn produced.
Most of us will need .6 to around a lb of N added to produce a bu of corn to economic yield goals.
If the GL process creates N that can’t be measured, and if they round about claim one gets about 16 lbs of N in an application but there is more corn produced from it than 16 bu…..
I’d like to understand what it is I’m getting, and how it works. Why.
Take out the magic, and supply the reasoning, the facts that support the low amount of N supplied by GL can sustain a typical yield goal on typical soils needing a typical commercial amount of N.
If that isn’t true, then what are the conditions needed for the GL to produce economic corn yields?
Thank you.
Paul
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Green Lightning Claims
