skip to Main Content

Agri-Hume® Guardian P

Liquid phosphorus and potassium fertilizer with humic acid

The Agri-Hume® product line offers liquid nutrient formulations with a built-in humic acid component. This combination helps complex soil nutrients to improve plant availability and helps improve soil tilth and structure. Agri-Hume® products enhance nutrient uptake, stimulate root development, improve water holding capacity and maximize nutrient availability. Agri-Hume® offers a wide range of benefits at a reasonable cost.

Agri-Hume® Guardian P is a phosphite-based fertilizer that includes Mar Vista Resources’ innovative Nutri-Drive® technology to increase plant uptake and nutrient mobility in the plant.

  • Contains 27% phosphoric acid, 21% soluble potash and 0.4% humic acid derived from leonardite
  • Unique phosphite blend
  • Chloride- and sodium-free
  • Formulated for soil and foliar applications
  • Stimulates root development and early plant growth

Packaging Options
Available in 2.5- gallon jugs, 275-gallon totes and bulk volumes.

Product Type
Crop Nutrition Icon
Crop Nutrition
Enhanced Products Icon
Enhanced Products
Application Type
Soil Icon
Foliar Icon
Fertigation Icon
Product Line
BlueTerra Icon
Phosphorus Icon
Potassium Icon

Application Details

Agri-Hume® Guardian P fertilizer may be applied pre-plant, as a starter, side-dressed, fertigated, top-dressed or banded to the soil. It may also be used as a pop-up or in-furrow at a rate of 1 to 4 quarts per acre. Agri-Hume® Guardian P can also be applied via a dilute foliar spray from the air or ground.

Nutrient Function

Phosphorus Icon
Phosphorus is required for adequate cell membrane function and is crucial for a plant’s metabolic processes, including root and vegetative growth, flowering, and seed production.
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.
Back To Top