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SE Nebraska | Knowing the soils in that area, I would say that you will not see any benefit from potassium application. I haven't seen any yield or physiological response from boron fertilization in that area neither. If you are irrgated, chances are that the hard water in that area has kept your pH's in check. Your also most likely getting enough chlorine from your irrigation water. I'm guessing it is not a fertiltiy issue for you in that area, barring excessive N fertilization (which I doubt is the case)
I've seen more than one case of poor stalk quality resulting from lackluster root development as a result of the poor planting conditions we experienced this year. Make sure seeding depth is 2.25"-2.5", as shallow seeding was a culprit in many poor stalk quality issues I've seen lately. Foliar disease caused many a standabilty issue this year, but fungicide application probably helped you there.
Gentics made a considerable difference as well. Poor stalk quality this year can also be blamed on the fact that many hybrids filled too quickly for their own good. Plants canabalized the stalks too much when the photosynthetic capacity of the leaves couldn't keep up with the carbohydrate demand of the quickly filling ear.
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What can I do to get stronger stalks??
