early spring fertilization

Discussion in 'Pesticide & Herbicide Application' started by Matthew K. Murnane, Mar 16, 2002.

  1. Kent Lawns

    Kent Lawns LawnSite Senior Member
    from Midwest
    Posts: 870

    You're missing 1 part of the equation, so an answer cannot be reached.

    A few insights:
    1.) You are NOT applying this material for agronomic reasons. You're applying it for ECONOMIC reasons.

    2.) The analysis numbers are meaningless unless you know HOW MUCH NPK you're applying and HOW MUCH you need.

    3.) Are the turf shoots or roots growing? Will they be in 7-10 days?

    4.) If not, then your CEC (Cation Exchange Capacity) must be above 15 for this application to do any good.

    Since you probably don't know the CEC of each lawn and you do not know what the soil needs, you have no idea if your application is sorely needed or a complete waste of time and money.

    Bottom line:
    If the grass ain't growing AND you don't have a soil test, WAIT.
  2. groundsguy1970

    groundsguy1970 Banned
    Posts: 166

    15-10-25 w/ IBDU
    our soils here lack K and the array of minors average PH is 5.5
    I apply for argo and econo reasons ie non irrigated lawns need more spring N because in summer they go dormant But get mowed the rest of the year.
    For summer it's a 21-7-14 with formaldehyde urea and PCSCU...
    I don't believe in soil tests because my area has a few soils in it and after years you just know, with all our rain and long grow season we don't make that big of a deal over "spring" because we mow in the "winter",too! Once you know your area "averages" save yourself some $$$ and skip the soil tests...
    I supplement, liquid Fe8 + Humisolve, over these apps with products that cause allot of top growth, here again our soils are only lacking K and a balanced PH.
  3. selively

    selively LawnSite Member
    Posts: 6

    Here in West Texas
    I wait until April to do the fertilizing
    In March I apply Iron then in april This year Im trying a 30-5 2
    fertilizer ,
    , I follow a landscape architect Tree business who has been in business since 1950 plan but alter it some ,
    find someone who has been doing this for years and use what they use , you will find out that you have more confidece in your program!
  4. 1grnlwn

    1grnlwn LawnSite Bronze Member
    Posts: 1,261


    Just a quick note. If you use Dimension you should need only to apply once. Get a label and read. It will tell you every thing you need to know. As you learned by state testing the label is law.

  5. bruces

    bruces LawnSite Senior Member
    Posts: 648

    My Lesco dealer told me to use gauge setting of 15.
  6. Nebraska

    Nebraska LawnSite Senior Member
    Posts: 525


    They are saying to do it with two applications here in Nebraska... Other posts and posters on this board recommend the same. Am I missing something?
  7. Evan528

    Evan528 LawnSite Silver Member
    Posts: 2,144

    1grnlwn says that because dimension has a longer residual effect than any other pre-emergent used. Its not quite a nessesary, but supposidly it really helps!
  8. Nebraska

    Nebraska LawnSite Senior Member
    Posts: 525

    up to 12 weeks? vs standard up to 8 weeks.... What happens after the 12 or 8 weeks with the seeds that are still there?
  9. Kent Lawns

    Kent Lawns LawnSite Senior Member
    from Midwest
    Posts: 870

    They germinate and then die in the winter.

    A summer germinating weed will not get big by fall anyway.

    With a thick turf canopy, germination is minumal.

    Most crabgrass that will germinate each year will do so (or try to) early. But it DOES in fact germinate all season long.
  10. Nebraska

    Nebraska LawnSite Senior Member
    Posts: 525

    then what happens is we put down 1 application of Dimension starting April 1, soil temps are at about 45-50 when we start and we are done with the applications in 3 weeks?

    If we do not do a second application of Dimension how much crabgrass, foxtail etc are we going to see in 12+ weeks and after the 12 or so weeks, the way it's explained by Kent, the crab grass will begin to germinate..?

    Is this why we are doing two applications or is it overkill on the introduction of a pesticide?

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