What happens to P & K in a drought?

Discussion in 'Pesticide & Herbicide Application' started by khutch, Jul 3, 2006.

  1. khutch

    khutch LawnSite Senior Member
    Posts: 495

    Wondering what happened to my 5-10-31 on Tall Fescue put on back in May. It didn't rain for 6 weeks.....Figure the iron would just sit there, but really interested in what happens to P & K in a drought.
    The N (what little bit in 5-10-31) pretty much gone I would think.
  2. GreenUtah

    GreenUtah LawnSite Senior Member
    from SLC, UT
    Posts: 866

    I doubt it would go far, if that's what you are wondering. However, the sun is your enemy, breaking down the fert and most chems for that matter. Humidity can also play a role, as anyone who has had a hole in a bag of fert in their shops with a swamp cooler running can attest, slow release or not. depending on P-K type, heat, etc., burning could be an issue where prills are contacting plants, but hopefully you've got the rain you needed and the fert is starting to work it's way into a soluable, usable form.
  3. Grandview

    Grandview LawnSite Gold Member
    from WI
    Posts: 3,251

    The P and K did not go anywhere. It is the soil.
  4. khutch

    khutch LawnSite Senior Member
    Posts: 495

    Its IN the soil or ON the soil?
    The question is WITHOUT rain what happens....

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