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liquid vs granular

Discussion in 'Pesticide & Herbicide Application' started by mtnrn, Mar 4, 2004.

  1. mtnrn

    mtnrn LawnSite Member
    Messages: 5

    I am looking for information on liquid vs granular fertilizers for trees. I live at 8000' in the Colorado mountains and deal with fir and aspen trees. Is a slow release, granular application once a year sufficient, or is a liquid injected fertilizer more effective? Any pros or cons you could pass my way would be appreciated.
  2. Mike@Haines

    Mike@Haines LawnSite Member
    Messages: 22

    I live in coastal washington, so I don't have any info yea or nay re: 8000' up, but many of the trees feeder roots are in the 6-10 inch range below the surface. We use 8 inch lances to do deep root ferting in the winter and spring. It's slower (WAY slower), but the results are awesome.

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