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Soil Amendments

Harrell's Soil Amendments are formulated to improve soil structure, enhance nutrient availability, and support stronger root development.

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Harrell's Potassium Silicate

Harrell's MAX® Potassium Silicate concentrate is a blend of phosphorus, potassium and silica for use by professional applicators as a part of a regular fertilizer program.

0-2-12; Derived from K+ hydroxide, K+ phosphate, K+ silicate, contains: Fulvic acid

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Harrell's Cal Plus

Harrell's MAX® Cal Plus is for use as a supplement on all professionally maintained golf and sports turf, lawn and landscaping.

Contains: 3% Nitrate, 10% Ca, 1% Mg, 0.3 Boron

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