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Carbondale, KS | We haven't soil tested for a couple of years now but they usually run 200+ ppm so we've never apply any. However, this year we saw a little bit of K deficiency in a particular variety of corn. Soon as the soil warmed up the symptoms went away but i too wondered how much damage was done. I was going to tissue sample each field and or variety and correlate that back to a soil test this fall just for giggles but the extension office said that if the plant was stressing, for whatever reason, the results could be skewed so we skipped it.
One thing that was explained to me for our soils is that the plant health and stalk strength isn't from the K but is actually from the chloride (mostly potassium chloride used around here) as it wards off stalk diseases like rot or fusaurium (sp). | |
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Potash and drought proofing?
