soil test, zoysia, aeration?

Discussion in 'Homeowner Assistance Forum' started by d.m.d., Mar 24, 2007.

  1. d.m.d.

    d.m.d. LawnSite Member
    Posts: 72

    i have an older 95% zoysia lawn.it needs some renovation.got my soil test results and they suggested 50#lime/1000ft. and nitrogen in a couple of weeks when its starts to turn green(missouri)its currently still brown)i aerated 2 weeks ago.im one of those guys who wants a good lookin yard.im not happy with it or zoysia for that matter.what can i do to make this zoysia take of this year???????????
     
  2. jeffinsgf

    jeffinsgf LawnSite Senior Member
    Posts: 641

    Zoysia is never going to look nice in the Spring. Depending on variety, it need soil temps in the 60-70's before it even thinks about coming out of dormancy. The trade off for that is a green lawn in the middle of summer when everyone's bluegrass and fescue looks fried.

    I would double check that lime recommendation. Did your analyzer know you were talking about zoysia? Zoysia prefers a slightly acidic soil, and lime will take it the other way. Unless your pH was over 7.5, I would not spread lime.

    As I understand aeration, you should do it when your grass is actively growing, so it sounds like you were several weeks too early. I know the feeling, I am looking at my yard, just itching to get the aerator after it, but I am just starting to see some green in it, so I am being patient and waiting.

    From what I have read, a balanced fertilizer (12-12-12) is better for zoysia than the high nitrogen ferts that you would use on cool season (fescue/bluegrass) lawns.

    If you haven't yet, I would use some pre-emergent on it right now, to control crabgrass. Don't use a weed & feed -- you'll be wasting the feed part if the grass is still dormant. Then aerate again when it gets green, topdress with compost, and fertilize with a balanced fertilizer.
     
  3. d.m.d.

    d.m.d. LawnSite Member
    Posts: 72

    my ph was 5.7,my recomendation came from the lab at the missouri of university.
     
  4. jeffinsgf

    jeffinsgf LawnSite Senior Member
    Posts: 641

    I kinda got the numbers backwards in my post. Higher numbers are more alkaline, lower numbers are more acidic. Zoysia wants slightly acidic soil -- in the 6's. At 5.7, you're not too far off, and the extension boys have given you a recommendation that is near the maximum application rate you could possibly use at one time. I would try half that -- 25 pounds per thousand, along with the other things I mentioned, and then retest in August. Don't get your pH in the 7's -- which I think 50 pounds per thosand might do.
     
  5. d.m.d.

    d.m.d. LawnSite Member
    Posts: 72

    thanks.there for a minute i was second guessing myself.
     

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