JH Biotech - Fulmax | Concentrated Fulvic Acid

Brand: JH Biotech

Fulmax

WSDA

Fulmax is a liquid concentrate containing 3.0 percent fulvic acid extracted from leonardite. Applied to soil or foliage it improves nutrient availability, stimulates plant growth, and increases the cation exchange capacity of soil. Fulvic acid molecules are small and readily complex metal nutrients, so the product functions as a natural chelating and carrier agent that improves the efficiency of applied fertilizers.

Fulmax is applied as a soil and/or foliar application and is labeled for all crops. Soil application is 1 to 2 quarts per acre with enough water or fertilizer solution to cover the area. Foliar application is 1 to 2 pints per acre in at least 10 gallons of water or fertilizer solution. Shake well before using; it can be tank mixed with water or liquid fertilizer solutions.

Available Options

• 2.5 Gal (sold in packs of 2)
• 55 Gal Drum
• 250 Gal Tote

Key Features

• 3.0 percent fulvic acid derived from leonardite
• Improves nutrient availability to plants
• Stimulates plant growth
• Increases soil cation exchange capacity
• Natural chelating action on metal nutrients
• Dual soil and foliar application
• Compatible with water and liquid fertilizer solutions
• Approved by the Washington State Department of Agriculture Organic Food Program
• Weight per gallon 9.0 lbs

Ideal Applications

• Broadcast or irrigation-delivered soil applications on all crops
• Foliar nutrient programs tank mixed with foliar fertilizer
• Improving cation exchange capacity in low-organic-matter or sandy soils
• Carrier and chelator to improve micronutrient efficiency
• Fertigation through drip or sprinkler with liquid fertilizer

Organic Input Listings

• Registered with the Washington State Department of Agriculture Organic Program as an organic input material.

Organic input listings apply to the product exactly as named and are subject to change on renewal. Confirm current status with your certifier before use.

State Registration

Fulmax is a soil amendment. It is not a pesticide and no pest control claims are made for it. Fertilizing materials must be registered in most states before they may be distributed there.

Per the manufacturer price list dated 7/22/2026, Fulmax is not registered for sale in: AR, CA, IL, KS, MD, MN, MS, MT, OH, OK, OR, PA, SC, SD, UT, WY. Buyers outside those states should confirm current registration status before ordering.