Diamond Grow ® Humi[K] WSP (Water Soluble Powder) was designed specifically to be mixed with water to produce a liquid humic concentrate. The resulting organic solution is compatible with many liquid fertilizers and micro-nutrients, acting as a chelating agent aiding plants in the uptake and usability of nutrients essential for a crops healthy and productive life cycle.  In addition to being made into a liquid concentrate, our powder was also designed to be used as a fertilizer coating.

Humi[K] WSP contains the same benefits as our liquid product, which we make available in powder form for dry mix fertilizers, as well as for cost effective shipping. 

Our Humi[K] WSP is derived from the finest, richest, and purest source of humic acid in North America and arguably the World. This humic acid source is a weathered type of oxidized sub-bituminous coal rich in humic substances. This humic acid source is similar to the commonly found Leonardite (lignite coal), but our source contains a higher concentration of Humic Acids and significantly lower levels of ash and heavy metals, such as lead, arsenic, and mercury.

We began spray drying our Liquid Humi[K] to serve our customers manufacturing dry mix fertilizers and customers that are located abroad. The addition of our spray dry line has enabled us to deliver the same great organic humic product in larger quantity without the water weight, significantly reducing the shipping costs, which passes on cost savings to the customer.


Methods of Analysis

Typical Analysis:

Potassium 12%

A&L Labs: 95-99% Potassium Humate (Humic Acid)
CDFA 65-70% (Humic Acid)
ISO/Lamar/AOAC/IHSS: 60-65% (Humic Acid)

Fulvic Acid 10-15%

Organic Carbon 30-35%

Organic Matter 55-65%  

Organic Wet Chemistry Activation

Functional Humate Groups

pH range: 9.0-9.5

AGRONOMIC USES:  Apply directly to the soil in fall or early spring and as many as 4 to 6 applications per growing season.  Always conduct a soil test to determine nutrient levels and make needed amendments to assure good fertility levels in your soil.  Diamond Grow® - Humi[K] WSP is an ideal supplement to aid in the effectiveness of your fertilizer program.  Application rates will vary depending on soil conditions, plant type, nutrient requirement and application method. Consult your local agronomist or Ag Extension Agent for more information for your specific application.

MIXING INSTRUCTIONS:  Mix 1lb of Humi[K] WSP into 1 gallon of water (1kg into 5 liters) to create a Liquid Humi[K] Concentrate. 

SHAKE WELL prior to further diluting/mixing.  When mixing with water, ­fill container half full, then add Liquid Humi[K] Concentrate to the remaining water.  When mixing with pesticides, dilute Liquid Humi[K] Concentrate with water prior to the addition of buffering agents and pesticides. DO NOT tank-mix with carbonate-based pesticides, as efficacy will decrease. Follow all directions and precautions on pesticide labels prior to mixing with Liquid Humi[K] Concentrate. Ensure adequate agitation in all situations. DO NOT mix Humi[K] Concentrate with calcium nitrate, phosphoric acid, zinc sulfate or other solutions with a pH of less than 6.5

DIRECTIONS FOR USE:  Proper timing, rate, and placement of Diamond Grow ® Humi[K] is important for desired results and highly dependent on stage of crop growth, soil fertility levels and environmental conditions.  If unsure of application rates for your specific soils, please consult your local Ag Extension Agent


  • Agronomic Crops: 4 - 10 pounds per acre


SPRAY INSTRUCTIONS:  Apply 2 quarts of Liquid Humi[K] Concentrate per acre diluted with a minimum of 20 gallons of water.


  • 2,200lb/1MT (Super Sack)

  • 55lb/25kg Bags (Pallet)

  • 22lb/10kg Bags (Pallet)

At this point, no scientists have been able to provide a descriptive and definitive molecular picture of humic substances. They are polydispersed polyanions and are supermixtures of many different acids containing carboxylate and phenolate groups and others, so that mixtures behave functionally as dibasic or tribasic acids. Humic acids can form complexes with ions that are commonly found in environments creating colloids. Research has shown carboxylate and phenolate group substituents link together for functionality.  These delicate and relative ratios allow humic acids to form complexes with ions. Many humic acids have two or more of these groups arranged so as to enable formation of chelate complexes. The combination of these functional groups thus regulates bioavailability of metal ions.

The formation of humic substances is one of the least understood facets of humic sciences. There have been various theories posited on this matter. If we had a clearer molecular picture, it would be much easier to infer what is occurring, and by extension the nature of these fascinating interactions. For example, if we knew urea, ammonium sulfate, calcium nitrate.... we would know their precise molecular makeup and be able to unlock their inherent mysteries.

Humic is a complex and fascinating creation. A plethora of unknown dynamics, such as chemical, biological, and bioorganic molecules, along with physical, biophysical, physiological, and other elements of combinatorial chemistry makes it difficult to make fair and clear judgments about interactions which are consistently occurring. It is long term combinatorial chemistry that creates these mysterious balances. To put this into perspective, most of us five fingers. If we added one more, its impact would be difficult to assess. The same applies to the unique biosignature of humic chemistry. We cannot say how adding one thing or another is going to have a profound influence on these complex super mixtures and their unique web of interactions.

To give another example that illustrates these inherent mysteries, another component in humic chemistry is charged density. The molecules may form a supramolecular structure held together by a myriad of noncovalent forces. In a nutshell, there are major complexities that we cannot resolve by adding this and that such as enzymatic and autoxidation, peptides, amino acids, phenolic radicals, etc.

The best course of action is to do comparative work under controlled conditions in greenhouses and fields, assess plant performance, yield, and quality, allowing the results to speak for themselves. Some studies have been done to further identify these components, using various methods such as liquid chromatography and liquid-liquid extraction, which can be used to separate the components that comprise humic substances. The substances identified, according to some research, include mono, di, and tri-hydroxy acids, fatty acids, carboxylic acids, linear alcohols, phenolic acids, and terpenoids.

Humic substances are natural phenomena that have been developed in humic chemistry over lengthy periods of time. They reflect the mystery of the universes intelligent and marvelous design. The proverbial proof is in the pudding. Again, with that in mind, the best course of action is to do comparative work under controlled conditions and allowing these plants to communicate these dynamic mysteries through their unique metabolisms.