Severe yellowing of the lawn...pics included

Discussion in 'Fertilizer Application' started by Raymond S., Aug 14, 2012.

  1. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,080

    The experiments in the research papers were done on sandy, high pH soils with rootzone temps at 94 degrees... the OP said he had sand as well...
     
  2. Raymond S.

    Raymond S. LawnSite Senior Member
    Posts: 977

    Correct, sandy soil and high soil temps as well. The study was indeed conclusive on the cause. What I would like to see (and will continue to study myself) is a corrective action.
    Also, water definitely contributes, in fact overwatering is an obvious contributor. Double edged sword though. Water enough to keep from drying out and this is what you get. I believe the key factor is the high pH of the soil. Getting pH down to allow the turf to utilize the iron (and keep it down) I think is the first step.
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  3. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,080

    Did you try irrigating in the middle of the day to cool the soil??? Dealing with pH is such a temporary fix...
    Michigan must have cooled off by now, correct??? Seems like I'm a bit North of your position, but we're enjoying Summer again on this side of the Lake... :)
     

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