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Foliar feeding and droplet size Ride-on.

Discussion in 'Fertilizer Application' started by Coachbob, Jun 23, 2020.

  1. Coachbob

    Coachbob LawnSite Senior Member
    Messages: 397

    Been using my Exmark for foliar nutrition a lot lately and think i will be going liquid for a good part of my applications. Reading a few articles on how plants absorb foliar feeding got me thinking that the floodjets on the Ex/Toro are not ideal for full leaf coverage. For best foliar uptake, a fine droplet is recommended, where the FJ is coarse to ultra coarse depending on psi. I also find the floodjet to be lacking for low to ground plantain and think i might prefer better leaf coverage with finer droplet. I installed a boom on my unit and am hoping to add an auxiliary tank and plumbing in the near future. Anyone have any thoughts on nozzle selection for foliar feeding?
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    hort101 likes this.
  2. greendoctor

    greendoctor LawnSite Fanatic
    Messages: 11,070

    I get along fine with AI 110 nozzles calibrated to apply at 1-2 gallon per 1000 sq ft. Upgraded tank, pump system, agitation is a good idea. Those sprayers are made to do something totally different with a different kind of product
     
    Coachbob likes this.
  3. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 16,999

    Coach, I am concerned that you might be tempted to mix it stronger--more concentrated. This might result in fertilizer burn. A concentrated solution applied to the leaf is like salt--it will tend to draw moisture out of the leaf.
    Greendoc is right--you want 1 to 2 gallons of water per thousand sqft. Nitrogen and potassium--need to be applied in plenty of water. Be careful.
     
    Coachbob likes this.
  4. OP
    OP
    Coachbob

    Coachbob LawnSite Senior Member
    Messages: 397

    Thank you Riggle . I use higher volumes for that reason but would line to have finer droplets.
     
  5. AMartinContracting

    AMartinContracting LawnSite Member
    Messages: 150

    I've always wondered if a higher rate of carrier is needed to do foliar apps on a residential lawn mowed at 3.5 inches, vs a fairways at .5 inch.

    Anyways, I keep it at 2.5 G /k the season here.
     
    Coachbob likes this.
  6. lawndude28

    lawndude28 LawnSite Senior Member
    Messages: 419

    AI nozzles would probably be the best for general use. Those XR nozzles are so fine its almost impossible for me to blanket with them due to drift. I spray foliar products, fungicides, iron, pgr and get fine results with the flood jets.
     
    Coachbob likes this.

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