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Tricks To reduce fertilizer usage?

Discussion in 'Fertilizer Application' started by ChemicalKing, Jun 14, 2008.

  1. Dandylyin Slayer

    Dandylyin Slayer LawnSite Member
    Messages: 81

    Chemicalking this is such a true statement !! Warm season turf is much more costly in our area to maintain . Reading how the northern guys can operate their programs seems so different to me.
  2. ChemicalKing

    ChemicalKing LawnSite Member
    Messages: 33

    Also, nobody had anything to say about my origional inquiry on this thread pertaining to increased nitrogen efficiency via urease inhibitors/dicyandiamide.

    Before anybody says no scientific evidence, see this link:


    Is there anybody out there with personal experiences relating to NPK reduction via methods that reduce leaching & ammonia volitilization?

    Thanks Everyone!
  3. Turfdoctor1

    Turfdoctor1 LawnSite Senior Member
    Messages: 707


    huh. that is interesting. i don't believe that this was from the turfgrass research, not to say that it isn't relevant, just to say that I was not working on that those trials. And, if it was within the turfgrass research area in 2005, i would have known about it. who was the author?
  4. ChemicalKing

    ChemicalKing LawnSite Member
    Messages: 33

    Roger Bowman was the investigator. Not sure who else was involved. The research is specific to treated & untreated plots of warm season turfgrass.
    It seems pretty conclusive on the reduction in leachate of n-p & K...
  5. humble1

    humble1 LawnSite Silver Member
    from MA
    Messages: 2,519

    i recall reading somewhere that it made herbicides work better, at lower rates, any input?
  6. naughty62

    naughty62 LawnSite Senior Member
    from iowa
    Messages: 369

    Up here the biggest improvements I have seen are on lawns,that have been top dresser and seeded with the correct seed at appropriate rates .Water retension and CEC.But most people dont have equipment or room for amendment storage .thin lawns with poor top soil scorch and and have all kinds of problems .But if basic IPM is not a priority ,there is not much a guy can do.
  7. Turfdoctor1

    Turfdoctor1 LawnSite Senior Member
    Messages: 707

    any way you could email me that data? i know roger, worked with roger, and i don't remember that data. i would be interested to see the whole study. When i mentioned above that the studies we had done returned no differences, these are the exact studies i was talking about.
  8. ChemicalKing

    ChemicalKing LawnSite Member
    Messages: 33

    Unfortunately, the files are much too large to e-mail & the attachment file types allowed here are limited. But here is a compressed excel sheet with much of the data, in addition to the screen shots from the power point that I posted here earlier. The full research is available from either UA or I got it thru my sales rep at Helena Chemical.

    Attached Files:

  9. ChemicalKing

    ChemicalKing LawnSite Member
    Messages: 33

    Of all the data I have reviewed on humates, there are no claims of any herbicide enhanced efficacy - surfactants/adjutant/sticker your best bet here. Maybe buffering agents, depending on the ph of your water...

    The idea is that it is a known fact that a substantial amount of your fertilizer applied to turf is lost via leaching & ammonia folitilization. If you can reduce that loss, then you can reduce your usage equally - with no difference in response.
  10. ICT Bill

    ICT Bill LawnSite Platinum Member
    Messages: 4,115

    Humates, Humic acid, fulvic acid (carbon compounds) are food for the soil microbes. These guys can mine nutrients that may not be plant avialable, if you are able to get nutrient cycling going in the soil you can indeed reduce fertilizer inputs. The no Till farmers (closed system) are getting great results, turf is much the same in this instance as it is also a closed system

    Here is part of an explanation from the site http://www.humate.info/ . the info is from HumaTech Inc. so it may be slanted towards their product but the basics are pretty good.


    Humic substances are a good source of energy for beneficial soil organisms. Humic substances and non humic (organic) compounds provide the energy and many of the mineral requirements for soil microorganisms and soil animals. Beneficial soil organisms lack the photosynthetic apparatus to capture energy from the sun thus must survive on residual carbon containing substances on or in the soil. Energy stored within the carbon bonds functions to provide energy for various metabolic reactions within these organisms. Beneficial soil organisms (algae, yeasts, bacteria, fungi nematodes, mycorrhizae, and small animals) perform many beneficial functions which influence soil fertility and plant health. For example the bacteria release organic acids which aid in the solubilization of mineral elements bound in soil. Bacteria also release complex polysaccharides (sugar based compounds) that help create soil crumbs (aggregates). Soil crumbs give soil a desirable structure.

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