New Liquid Potassium Nitrate Solution for Specialty Crops

New Liquid Potassium Nitrate Solution for Specialty Crops

SQM North America is introducing Ultrasol®ution Ka liquid fertilizer formulation composed of macronutrients that are readily available for plant uptake, making an ideal source of nitrogen and potassium. Initially, it will be available in two grades — 2.7-0-9 for cool season and 3-0-10 for warm season.


“Ultrasol®ution K will address the need for chloride-free potassium and safe-handling nitrate-nitrogen in the liquid fertilizer market, opening up new possibilities for nutrient management in California specialty crops like almonds and strawberries, where water quality and use efficiency are of utmost importance,” says SQM Agronomist J.W. Lemons.

In University of California, Davis research, a fertilizer program with liquid potassium nitrate in continuous fertigation, following a banded application of SOP (sulphate of potash), resulted in a 17% cumulative yield increase over SOP alone. The program including Ultrasol®ution K in continuous fertigation resulted in a 22% yield increase over a program including PTS (potassium thiosulphate) and SOP.

“Beyond its performance benefits, the liquid formulation will allow retailers to easily adapt this product into their existing tank farm for convenient, safe, and compliant storage,” says Lemons.  “For growers, no conversion is needed, making Ultrasol®ution K ideal for liquid blending or mixing in the field.”

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