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Posted by JimR on March 20, 2006, 8:55 pm
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Fertilizer that's been kept dry (or capped, if liquid) should keep
indefinitely. One other note -- most Extension Services recommend against
the use of fertilizer stakes. The area immediately adjacent to the stake
has far too much fertilizer and may burn tree roots, while further away they
do not provide enough for the plant's requirements. Out-of-doors, their use
tends to create "bullseyes" with a burn spot in the middle surrounded by
intense growth, which tapers off as you move away from the staked spot. If
you must fertilize something, you're better off to use a more conventional
fertilizer specific to the need.
In general, trees in the landscape don't require separate fertilization and
will do quite well drawing from the fertilizer applied to lawn and garden.
Regards --
>
> Hi...
>
> Playing around with this new electronic fertility meter, and
> looking for some information, if I may?
>
> Ground outside is still frozen and snow covered, but experimenting
> with potted plants indoors. Meter indicates too little fertility,
> (as I suspect it should).
>
> But - as of a month ago, have added the correct pot size number
> of Jobe's fertilizer sticks. Little effect. Have added liquid
> fertilizer to the normal watering. Little effect.
>
> The questions, then. Does fertilizer have a shelf life?
> This stuff I've been using is awful old - perhaps 5 or more
> years.
>
> And looking for an effect - should it be instantaneous, or should
> it take effect slowly and perhaps show up weeks or months later?
>
> Thanks in advance for any shared thoughts...
>
> Take care
>
> Ken
>
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