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Kainit

Categories: COMMERCIAL SOURCES OF PLANT-FOOD

Unlike muriate and sulphate of potash, kainit is a crude

product of the German mines, having received no treatment to remove

impurities. It contains 12 to 13 per cent of potash, and is rated as a

sulphate, but one third of it is common salt, and in effect upon

quality it should be classed with muriate and not sulphate. Its low

content of plant-food should confine its use to regions relatively near

the seaboard. When shipped far inland, the price becomes too high to

give a reasonably cheap pound of potash.



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