Anyone using Ammonium Sulfate ?

Discussion in 'Pesticide & Herbicide Application' started by redbuckcavs, Aug 20, 2008.

  1. redbuckcavs

    redbuckcavs LawnSite Member
    from indiana
    Posts: 135

    With the ever increasing cost of fert ( my supplier Quoted me 30-0-10 @ $25 per bag) I am thinking about using Ammonium Sulfate as a N source. I can get this in bulk @ 410 per ton ($10.25 per bag will cover 10500 Sq ft @ 1# N)

    Before using the Ammonium Sulfate (21-0-0) I would appreciate any input from anyone who uses this product

    1) I believe it is very slow released,so how soon would we see results (I realize the amount of rainfall would be a factor)

    2) would it be a problem to use in Late Aug and again sometime this Fall (or could we apply in Late Fall as a "winterizer
     
  2. jkranium

    jkranium LawnSite Member
    Posts: 131

    I have used it and was very happy. Probably gonna use it again in the fall. Just curious as to where you are getting it from?
     
  3. Hoots

    Hoots LawnSite Senior Member
    from DFW
    Posts: 327

    Be careful. They don't nickname it "white hot" for nothing. If you apply 21-0-0 with any moisture on the grass and don't water it in immediately, you will burn it into next month. When I worked on a golf course we sometimes had to apply 21-0-0 with some dew left on the greens, it collected on the spreader tires and lightly burned tracks even with immediate water.

    The only use I have for 21-0-0 is to melt it into the sprayer and apply it as a foliar. This will not burn.

    As for the slow release, I don't think it is. I may be mistaken but it is one that gets in quick and gives you a quick heavy green growth when applied at 1#N. I sometimes add it like 46-0-0 Urea-foliar only.
     
  4. teeca

    teeca LawnSite Bronze Member
    Posts: 1,202

    quote **As for the slow release, I don't think it is. I may be mistaken but it is one that gets in quick and gives you a quick heavy green growth when applied at 1#N. I sometimes add it like 46-0-0 Urea-foliar only. ***

    i was thinking the reverse.. i was thinking the ammonium was not as easly taken up by turf grass, thats why we use urea. corn on the other hand does take it up very fast. i could by wrong, but this is what i was lead to beleave.
     
  5. evergreenedmond

    evergreenedmond LawnSite Senior Member
    Posts: 310

    I have to agree with Hoots, we use 21-0-0 in the late winter to green up fescue & rye. It seems to be pretty hot.
     
  6. heritage

    heritage LawnSite Bronze Member
    Posts: 1,250

    Teeca,

    Ammonical N is Available to roots right away in Organic SOIL.

    Plants take up Nitrate and Ammonical quickly and Nitrate will Raise PH in the Rhizosphere while Ammonical will Lower PH in Rhizosphere.

    Urea Converts to Ammonical N sooner or later depending on Soil Temps....Warmer/Faster.

    21-0-0 AS is good stuff.

    Can we get it Polymer Coated?????

    That would be GREAT, and eliminate the Burn issues!

    Pete
     
  7. Hoots

    Hoots LawnSite Senior Member
    from DFW
    Posts: 327

    Poly coat would be good in a 21-0-0. They already do it with some of the urea in my bags of 24-0-11. It has 10.80% slow release poly plus sulfur coated urea from JDL.
     
  8. quiet

    quiet LawnSite Senior Member
    Posts: 720

    I prefer AS over urea. Good quick response, far less disease issues, breathtaking color, and for soils with a high pH, the combined sulfur portion really helps free up bound up P, and the minors like Iron, Manganese and Zinc. It is also much less volatile. It is not considered a slow release product, however, in clay soils, the positive ammonium charge is highly attracted to the negatively charged clay particles.

    As mentioned, don't apply it when moisture is present on the grass! And it needs deep thorough irrigation.

    That $10.25 is a good price. It's jumped from $8.00 to $13.25 for me this year.

    I like the idea of a coated AS! But if you're looking for a slow release product, you may wanna check out Lebanon's MESA. A lot pricier, but great stuff.
     
  9. jkranium

    jkranium LawnSite Member
    Posts: 131

    I have used it up here on wet turf and never had a problem with burning. Granted it was early in the year but still the grass was not dormant.
     
  10. Marcos

    Marcos LawnSite Gold Member
    Posts: 3,720

     

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