- Some stockmen prefer the use of acid phosphate and kainit mixed half- and- half. - "Crops and Methods for Soil Improvement", Alva Agee.
- Kainit is a low- grade potash because the impurities have not been taken out. - "Crops and Methods for Soil Improvement", Alva Agee.
- For the legumes, a good fertilizer to use per acre is: Kainit, 100 lbs. - "The Pecan and its Culture", H. Harold Hume.