SORRY, but bone meal [Blood Meal also] was believed to be a vector for 'Mad Cow' disease [the major use was the production of animal feed] The producers basically discontinued production rather than face the liability of such a problem and it was not worth the testing expence. Also the demand for it by Organic producers takes a large share of the small amount still being produced. The phosphorus provied can be replaced by 'Greensand' and the Calcium by by limestone or a whole group of Calcium materials like oyster shell or chicken egg shell. ~gdso lucky said:Maybe it's being used for food in some third world nation. I'm not trying to be funny--we had a shortage of nyger seed for bird feeding several years ago, and I was told by the sales rep that it was being kept in Africa to use as feed for the people there, due to a famine. With the way nyger seed smells, can you imagine having to eat it?![]()
Sorry, didn't mean to hijack your thread, Marshall.
winstonlacewing said:Hi Marshall,
I'm in SoCal and haven't noticed a shortage down here. We get 50lb. bags for around $30. Have you looked for soft rock phosphate? That's probably the best comparable source. There's also high-phosphorus bat guano...much more expensive, but potent for sure. Greensand has a bit of potash, but no phos. Long-term/sustainable source would have to be from manures.
my two...0 Ah Winston I think you are slightly confused between Potash and Phosphates. Potash is the common name for various mined and manufactured salts that contain POTASSIUM [Chemical symbol K] in water-soluble form. Phosphates contain Phosphorus [Chemical symbol P] these 2 along with Nitrogen [N] are the major components of Fertilizers and are sometimes expressed as (N-P-K) Most don't beleive that the two ane interchangable! ~gd
Winston