Anyone use 46-0-0 UFLEXX for Fall App - results?

Discussion in 'Fertilizer Application' started by DA Quality Lawn & YS, Oct 11, 2012.

  1. DA Quality Lawn & YS

    DA Quality Lawn & YS LawnSite Fanatic
    Messages: 9,296

    Wondering if anyone has used this product for a fall app on Northern Turfgrass.
    What are your thoughts?
    I am speaking of spreading as granular not melting. I will be using a PG.

    Kicking around using this more economical product vs. the 33-0-5 100% slow release product I have been using.
  2. KS_Grasscutter

    KS_Grasscutter LawnSite Gold Member
    Messages: 3,336

    Last year I used granular 46 0 0. I don't recall if it was slow release at all. Woulda worked great if I didn't spread it at 4lbs per K. Had great spring green up, but WAY too much growth.
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  3. tilawn

    tilawn LawnSite Member
    Messages: 112

    That's straight nitrogen! That will change your grass three or four shade of green darker almost overnight and you have to mow it every 3 days.
  4. DA Quality Lawn & YS

    DA Quality Lawn & YS LawnSite Fanatic
    Messages: 9,296

    I realize it is all urea, albeit stabilized.
    And it wont cause excessive topgrowth this time of year. I am more concerned with feeding the winterization process of the plants. Thoughts?
  5. Greenie

    Greenie LawnSite Member
    Messages: 105

    I have been putting out a late fall application of Urea for over 10 years now - right around Thanksgiving depending on the weather.
    From Purdue's Turf Tips:
    "The late-fall or November application timing should be near or after the last mowing of the year, but while lawn is still green. Typically, there may be a month or more between your last mowing and the time the grass turns brown or goes under snow cover. Generally the first few weeks of November are when to apply. Earlier Purdue research suggests that the nitrogen must be taken-up by the plant before winter to be most effective. Therefore, a quick-release (or soluble nitrogen source) such as urea, ammonium nitrate, calcium nitrate, or ammonium sulfate is most effective. The target application rate for this November fertilization should be 0.5 to 1.0 lbs. N/1000 square feet."

    I've had great luck, lawns have developed deeper roots, the turf is denser and there has never been a problem with mold or disease.
  6. phillie

    phillie LawnSite Senior Member
    Messages: 861

    I have looked into 46-0-0 for a winter app but it is somewhat a waste of money. If you are wanting to put out 1lb of N per K it is nearly impossible with this product as a granule especially in a ride-on. That would make your rate at 2lbs per k and most spreaders cannot go that low. With that said even though a 30-0-6 is a little more expensive per bag you will be able to put down correct rates for about the same amount of money per k. Another thing to think about is customer perception. If you are trying to put it down at 2lbs/k and they are used to seeing 3-5lbs/k they are going to question you and think you are skimping them. Just my opinion.
    I agree that all mineral is the way to go for last apps so that the plant can absorb as much as possible before dormancy.
  7. xtreem3d

    xtreem3d LawnSite Senior Member
    Messages: 801

    The deeper root growth isn't a result of straight Urea..correct?
  8. phillie

    phillie LawnSite Senior Member
    Messages: 861

    I would say that is correct. A nice deep root system is a result of a few different things, usually not from just 1 thing. The point of the last app is to help the plant store carbs and nutrients over winter dormancy.
  9. xtreem3d

    xtreem3d LawnSite Senior Member
    Messages: 801

    gotcha ..just read a study from some university (can't find the link ) basically dismissing a ratio of 1-2-1 1-3-1 ect because phosphorus remains in the soil longer than previously thought. Basically it thought you might only need it for new seed. Anybody have any thoughts?
  10. DA Quality Lawn & YS

    DA Quality Lawn & YS LawnSite Fanatic
    Messages: 9,296

    True - did not think about my Mag being able to spread the UFLEXX. One bag covering 23K sq ft....that would be pretty thin. Suppose I could try a bag out (on my own lawn) and if it doesn't cover the best move on. I really think I am going to go as much mineral fert as possible this last app as the whole 'spring holdover' thing with slow release N, in my opinion, just does not hold stock.

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