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Kettle Moraine, WI | Noticed this for several years and could never have a description that a google search worked to find an answer.
Nitrogen deficient corn has a degree of yellowing.
When you look at a nitrogen DEFCIENT corn field facing the sun versus sun to your back, the corn will look quite a bit greener when the sun is behind you than in front of you.
When you look at a nitrogen SURPLUS corn field facing the sun versus sun to your back, the corn will look almost the same shade of green either direction.
Is N sufficient/N surplus corn higher in chlorophyll density, thicker leaves, light spectrum refracted differently, less translucency to the leaves, or is my mind playing a visual trick on me ?
I read about the GreenSeeker system that determines N status of the crop (though I don't know what it is measuring). I trying to understand what I am seeing.
Edited by thinkstoomuch 7/31/2020 09:16
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