1. Missed the live Ask the Expert event?
    Catch up on the conversation about fertilization strategies for success with the experts at Koch Turf & Ornamental in the Fertilizer Application forum .

    Dismiss Notice

Quick Help Needed!!!

Discussion in 'Pesticide & Herbicide Application' started by Envy Lawn Service, Oct 19, 2002.

  1. Envy Lawn Service

    Envy Lawn Service LawnSite Fanatic
    Messages: 11,087

    I have a lawn I'm renovating today. The soil test showed the ground was basically barren across the board and just very slightly alkiline as far as PH goes. I've never ran into this before.

    My question is what is the maximum rate (lbs per 1,000) of fertilize you would feel comfortable adding in this situation at planting? Since I know someone will probably ask, it's fescue seed and the highs are only getting around 60 degrees.

    I'll check back before applying the fertilize.

  2. Without knowing what you are using hard to tell.

    I am using 25-10-10 40% scu 4%FE. 3.75 #M

    Now since you are seeding, 18-24-12 is good at 4#M
  3. Envy Lawn Service

    Envy Lawn Service LawnSite Fanatic
    Messages: 11,087


    Thanks for atleast trying to help. I've never worked with "completely dead" soil before. So this was a new one on me.

    As for the fertilize used...ever hear of Royster Clark? It was triple 17. Tell me how many lbs you would have put down and maybe...just maybe I'll tell you what I did:D
  4. 3.5 to 4 pounds per 1000, depends on how green the grass is that is already there.
  5. Envy Lawn Service

    Envy Lawn Service LawnSite Fanatic
    Messages: 11,087

    I don't know how you compute yours but I was taught to break it down in terms of lbs of N-P-K per 1,000 sq ft. For example roughly 3 lbs of triple 17 will deliver roughly 1 lb of N-P-K per 1,000 sq ft.

    As for the current grass, it "was" common bermuda (wire grass) and it was already going dormant. That crap will survive anything but cold and I've just proved it!

    Back to the fertilize...I was more aggressive than that. That's all I'll say for now! ;)
  6. tremor

    tremor LawnSite Bronze Member
    Messages: 1,476

    17% of 3lbs is only 1/2 lb of each.

    If the soil is as low as it sounds it was (no values posted) my next question would be what % slow release was that fert? I've never heard of it. Had to be close to an all chem because coatings way something & that something brings down the analysis.

    We also don't know the CEC, but it said "DEAD". I've not seen that on a soil test either. LOL

    Either way, you'd get away with 10lbs/M.
    Thats still only 1.7lbs of each element. Not great, but probably not lethal either.

  7. Envy Lawn Service

    Envy Lawn Service LawnSite Fanatic
    Messages: 11,087

    I meant 1/2.

    I have been taught that you divide 100 by the number on the bag to find out how much of it to apply to get 1 lb of say N. So in 17-17-17 it would take 5.88 lbs to get 1 lb of each or almost 3 lb to get 1/2 lb of each.

    There is no slow release N in this product and I generally don't use it. Personally, I like 10-20-20 for starter fertilize. I just decided to hit it with more N than I usually use.
  8. EJK2352

    EJK2352 LawnSite Bronze Member
    Messages: 1,150

    17-17-17 will cover 8,500 sq. ft at 1 lb. of N,P,&K per 1000 sq. ft. :) ;) :) ED
  9. tremor

    tremor LawnSite Bronze Member
    Messages: 1,476

    Cutting the first number in half works only if the fertilizer is packed in a 50 lb. bag. For all other sizes we're better of with the formula.

    Desired pounds of N (1) divided by the decimal analysis or 17 divided by 100 (.17) = 5.88 lbs/1000 sq. ft.
    Then if the material was packed 40lbs per bag:
    40 divided by 5.88 = 6.802 times 100 = 6800 sq ft

    Envy, What rate did you decide to use?

  10. Wendell

    Wendell LawnSite Member
    Messages: 6

Share This Page