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| I've been thinking about potassium quite a bit over the last couple days and am wondering about how Ag Talkers manage potassium.
Answers to any of the following Qs would be of interest to me (and probably many others).
What K sources do you apply and how do you apply?
What is the range of K soil test levels for the soils you farm? please include units (e.g., ppm) and method of extraction if you know (e.g. ammonium acetate)
How much variability have you noticed in K soil test or tissue test results?
How do you determine what rates of K to apply? e.g., attempt to build up to X ppm or x % saturation
Have you substantially changed K soil test levels on your farm(s) and have you observed clear benefits from these changes?
Do you VRT K products and if so do you have different goals for different soils? Also have your K soil test levels become more uniform?
Have you ever done any on-farm trials of K products, placements or rates?
How much confidence do you have in your current approach to K management?
Thanks for your time.
Joel
WIU Agriculture
Edited by jbgruver 11/25/2014 19:59
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How do you manage potassium?
