fertilize spuds under or over?

thefarmguyMarch 15, 2012

over the past years i have been putting a handfull of 4-4-4 organic fertilizer in the bottom of the hole i plant my potato i kick a bit of soil over it and then add the seed potato and fill the hole...it seems to work ok,,,i wondering though if i should reverse this with the fertilizer above the seed potato? anyone sprout a theory on this,,,,thanks

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wayne_5 zone 6a Central Indiana

The tests I have read shows the best results with the fertilizer beside [a couple inches away] the seed piece or perhaps an inch below it.

    Bookmark   March 15, 2012 at 5:15PM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

I can't see what benefit would come from fertilizer above. What are you thinking would be the benefit? It is for the roots and the roots are below.

I plant with the fertilizer worked into the trench base well, then the spuds, then cover, then hill as needed. Side dressing with more fertilizer mid-season.

Dave

    Bookmark   March 15, 2012 at 5:56PM
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RpR_(3-4)

Only the small tap-root of a potato plant grows below the original seed, they actually grow up, which is why potatoes have to be hilled up to stop them from turning green.
The potatoes on the stolons are what need the most nutrients and putting the food above the seed puts it where the stolon parts are._

If a potato is left in the ground it will send out more stems.
Tubers are actually swollen portions of underground stems (stolons) stems have nodes, and buds arise at nodes.

    Bookmark   March 28, 2012 at 12:49AM
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