soil test question

Discussion in 'Pesticide & Herbicide Application' started by mrkosar, Jul 27, 2006.

  1. mrkosar

    mrkosar LawnSite Senior Member
    from Ohio
    Posts: 664

    i've been told with results that you want between 68-72% calcium, 15-18% magnesium, 3-5% potassium. are these correct? what is an optimum range for sodium? how do you correct an abundance or deficiency in sodium?

    also the extractable minors:

    what are some ranges to look for in these? these numbers are in the ppm.

    boron 0.90
    iron 105
    manganese 100
    copper 2.52
    zinc 6.05
    aluminum 462

    i know some test results will tell you that the soil is high or low of optimum, but my test results do not state that, plus i would like to learn to read them better anyway. thanks in advance.

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