NPK Industries offers discounted recurring purchases on eligible RAW Nutrients and KALIX CPN products.
Subscriptions require a minimum commitment of two consecutive scheduled purchases.
By enrolling in a subscription, the customer agrees to purchase and pay for the initial order and at least one additional scheduled order at the selected subscription frequency.
Subscription discounts are offered in consideration of this minimum purchasing commitment.
After the minimum two-order commitment has been fulfilled, customers may cancel future recurring orders through their available subscription management options or by contacting NPK Industries.
Unless canceled, subscriptions continue automatically at the selected frequency and applicable subscription price.
Cancellation requests must be submitted before the next recurring order is processed to prevent that order from being charged or fulfilled.
Cancellation does not automatically cancel, refund, or reverse orders already processed.
Requests for cancellation before completion of the minimum commitment will be reviewed in accordance with the subscription agreement and applicable law.
Nothing in this policy limits cancellation rights or other protections required by applicable law.
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Description
Description
RAW Humic Acid is a highly concentrated, water-soluble biostimulant derived from leonardite (59% humic acid). Rather than acting as a fertilizer, humic acid enhances nutrient efficiency by improving availability, buffering soil pH, and supporting root and microbial activity.
Humic acid builds the foundation for productive growth by improving how plants interact with nutrients and water at the root zone. It supports healthier soil structure, stronger roots, and more efficient fertilizer use, giving growers better results from the same inputs.
Key Benefits:
Nutrient Uptake Support: Humic acid binds minerals and increases their availability for absorption at the roots.
“Battery Effect”: As agronomist Harley Smith explains, humic (and fulvic) acids increase the voltage potential across plant cell membranes. This helps plants move essential trace elements like iron, manganese, and copper more effectively—improving nutrition and stress tolerance.
pH Buffering: Stabilizes acidic or alkaline soils, creating a more balanced root environment.
Proven Combination: Most effective when paired with RAW Kelp in the Virginia Tech–verified 5:2 humic-to-kelp ratio, shown to amplify nutrient uptake and microbial activity.
RAW Humic Acid is fully soluble and easy to integrate into soil, coco, or hydroponic systems.
👉 For a deeper dive, check out agronomist Harley Smith’s video below, where he explains how humic acid improves root-zone efficiency, supports stress tolerance, and acts like a “battery” for nutrient movement.
