Salts of potassium used in the manufacture of fertilizers.(noun)
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Use "kainit" in a sentence
"They consequently require large quantities of manure, and are especially benefited by saline manures -- such as kainit and common salt -- and liberal doses of nitrate of soda, which may be regarded as the most effective of manures for all the cabbage tribe."
"From 1 to 2 cwt. of the muriate or sulphate is a common amount, and from 6 to 8 cwt. of kainit."
"Of these salts there may be mentioned, viz., kainit, an impure form of the sulphate, containing on an average about 12 per cent of potash, and the muriate and the sulphate -- both salts, in a more or less pure form, being used."