High Lime requirement

Discussion in 'Pesticide & Herbicide Application' started by Athletic field, May 20, 2008.

  1. Athletic field

    Athletic field LawnSite Member
    Posts: 152

    I have a lime requirement of 140lbs/K. I am in Pa, so I used Penn State's soil lab. They recommend splitting the applications in two,(70lbs/k) the yard is 20K

    What are you guys paying for dolomitic lime? I got a quote for $6.00 a bag, I believe it was 50lbs bag. 140lbs/1000 * 20000 = 2800lbs.
    2800lbs/50lbs = 56bags

    56 bags * $6.00 = $336 just for the material. Does this seem high? Obviously I'm trying to use this to price out the job.
     
  2. mngrassguy

    mngrassguy LawnSite Silver Member
    Posts: 2,167

    Price sounds about right but thats a lot of product to put down in 2 apps. Maybe split into 4?
     
  3. turf hokie

    turf hokie LawnSite Silver Member
    Posts: 2,744

    Any more than 50lbs per k per application really does not provide any more benefit. Price is not to far off.

    Look into solu-cal, it is more expensive but you only need 20% of the material to acheive the same results.
     
  4. ICT Bill

    ICT Bill LawnSite Platinum Member
    Posts: 4,115

    Athletic field, what was the soil reading on Mg, you may be raising the Mg too high with the dolomitic lime, depending on the reading you may want to move to calacitic lime
     
  5. Athletic field

    Athletic field LawnSite Member
    Posts: 152

    Bill

    Mg is .74meq/100g of soil and

    Mg 6.3% saturation of the CEC
    Ca 26.6% saturation of CEC
    K 3.5% saturation of CEC
    remander acidity (H)
     
  6. heritage

    heritage LawnSite Bronze Member
    Posts: 1,283



    Wow, That is the Lowest Ca/Mg Base sat % I have ever seen in over 25 years.

    2 season Project IMO.

    Dol Lime 1st season 50 lbs Split 2x....50 Now and 50 Oct 1st. (the price is good)

    Retest March 09, and determine if you finish up with the Hi-Cal Lime.

    Pete
     
  7. gorknoids

    gorknoids LawnSite Senior Member
    Posts: 316

    What is the soil type? Loam has a different requirement than sandy for a desired pH shift.
     
  8. Athletic field

    Athletic field LawnSite Member
    Posts: 152

    Thanks Pete

    What mark up do you guys use for lime?
     
  9. mngrassguy

    mngrassguy LawnSite Silver Member
    Posts: 2,167

    Same price as any other application. Maybe discount a little.
     
  10. Athletic field

    Athletic field LawnSite Member
    Posts: 152

    Gorknoids - Yes loam soils take more lime to change the pH compared to sandy soils. That is called the buffer pH or acidity on the soil. The pH you can test at home is the soil water or soil solution pH. You can get the same pH for a loamy or sandy soil, but the Cation exchange of loamy soils is greater than sand. Therefore a higher lime requirment is needed to exchange the acidity (H+) on the soil. The soil lab bases lime requirments on buffer pH or acidity on the soil.
     

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