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FertiClear® Mar-K

Low salt index liquid potassium and sulfur fertilizer

FertiClear® Mar-K is a nitrogen, potassium and sulfur blend and is an effective bulk fertilizer program for the soil. Mar-K contains Mar Vista’s Nutri-Drive® technology to improve nutrient uptake efficiency. Mar-K also includes non-plant food ingredients that enhance nutrient uptake and soil health. The proprietary technology in Mar-K helps alleviate plant and soil stresses during crucial growth stages throughout the season.

  • Contains 2% nitrogen, 10% soluble potash and 6% sulfur
  • Excellent potassium choice for inclusion in a season-long fertilizer program
  • Drip-friendly formulation

Packaging Options
Available in 275-gallon totes or bulk volumes.

Product Type
Crop Nutrition Icon
Crop Nutrition
Enhanced Products Icon
Enhanced Products
Application Type
Fertigation Icon
Soil Icon
Product Line
BlueTerra Icon
Nitrogen Icon
Potassium Icon
Sulfur Icon

Application Details

FertiClear® Mar-K fertilizer may be applied pre-plant, as a starter, side-dressed, fertigated, top-dressed or banded to the soil. Dilute with water if needed to ensure uniform distribution.

Nutrient Function

Nitrogen Icon
Nitrogen is the main plant protein component and is needed in large quantities for healthy plant growth. Nitrogen deficiency can lead to root disease, reduced photosynthesis, stunted plants and reduced crop yield, while sufficient nitrogen can increase tolerance to early-season soil diseases.
Potassium Icon
Potassium is critical for cell wall water balance regulation and sugar production and transportation within the plant. Adequate potassium levels support pest and disease tolerance by enhancing stem strength.
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