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Also
called colloidal phosphate or Lonfosco. Its popularity is due to a fast to
medium release rate of 2% phosphorous per season out of a total of 20%. Lonfosco
also contains 16% total calcium and several trace minerals. In addition to
immediate nutrient benefits, soft rock phosphate helps to balance acidic soils.
Unlike synthetic super phosphates, colloidal phosphate will not burn tender root
hairs or leach quickly away into fragile watersheds. Soft rock phosphate comes
highly recommended for orchards, pastures, flower and vegetable beds and compost
piles.
Richard,
It looks like this company may have gone out of business, but it's
possible that being so close to it, you may be able to find some company that
still has some on hand. Here was one of their web
pages:
Aha, I called their number, and they are primarily a
logging company but for years ran a plant that bagged this stuff. they
weren't making any money, so they closed it down 4 years ago. However,
there is another company that was mining the same stuff. Canton Mills in
Minnesota takes orders for it, but it's shipped out of Florida. You may
find it's not that far away from you. What I've done in the past is pick
the stuff up from various people who have bought a truckload, on my way home
from something I had to do anyway. I've bought it 3X I think, always from
different farmers. They never need a whole truckload, so they spread
the word around and peddle off the excess. Donna
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