PrimAgro K

Plant- and Soil-Friendly Potash Biofertilizer

PrimAgro K™ is a potash biofertilizer combining the growth-boosting benefits of plant-usable potash with soil-conditioning biologicals. This powerful combination not only provides nitrogen, potassium and sulfur to the plants and soil, but also improves nutrient retention and utilization year over year. Because it works to improve natural nutrient cycles, PrimAgro K™ is a potassium mobilizing biofertilizer that helps to make nutrients more mobile and available for plants to use. This is a helpful addition to row crops requiring regular replenishment of nutrients. These nutrients will be available to crops longer and will be lost into the environment less.

Potassium Mobilizing Biofertilizer

The billions of microbes in the soil are part of the Earth’s natural processes for filtering, restoring, and breaking down nutrients. These microbes keep the soil balanced, and create a healthy environment for plant roots. Without these microbes, nutrients leach away, plant roots have more difficulty reaching nutrients, and nutrient processing cycles end. This makes soil completely reliant on fertilizer additives, and much more vulnerable to nutrient toxicity or deficiency. A potassium mobilizing biofertilizer helps to create soluble potassium, specifically. The microorganisms in PrimAgro K are potassium solubilizing bacteria, which frees inorganic potassium in the soil for plants to use.

PrimAgro K potash biofertilizer renews the natural potassium processing cycle by restoring beneficial microbes. These bacteria decompose organic matter in the soil, naturally releasing potassium into the field. This process also allows plants to reach and use potassium more easily. Potassium moves very slowly through many soil types, if it moves at all. This makes it more difficult for many plants and trees to get the potassium they need throughout their growing cycle. Potassium mobilizing biofertilizer breaks down insoluble potassium and allows the nutrient to move through the soil more freely. Since potassium plays a key role in the formation of sugars and starches, this means larger, higher-quality yields.

Benefits of a Potash Mobilizing Biofertilizer

  • Provides essential nitrogen, potassium and sulfur
  • Restores beneficial soil bacteria
  • Allows the soil to naturally retain plant-usable nutrients
  • Improves soil health and longevity
  • Balances nutrient profile in soil

Soil-Friendly Potassium Biofertilizer

PrimAgro K potash biofertilizer renews the natural potassium processing cycle by restoring beneficial microbes. These bacteria decompose organic matter in the soil, naturally releasing potassium. This process also allows plants to reach and use potassium more easily.

Bacteria such as Acidothiobacillus ferrooxidans, Paenibacillus spp., Bacillus mucilaginosus, B. edaphicus, and B. circulans, among others, all play a role in solubilizing potassium in the soil. This includes naturally occurring potassium materials like feldspar and mica, as well as potassium that is added through fertilizer. When potassium fertilizer compounds bond with existing compounds in the soil, it can form bonds which plant roots are unable to break. This means the potassium accumulates in the soil in an insoluble form, which contributes to soil over-salinization. The potassium solubilizing bacteria contained in PrimAgro K potash biofertilizer help to break these bonds apart and make potassium mobile and usable in the soil.

How to Apply PrimAgro K Potassium Biofertilizer

PrimAgro K potash biofertilizer is best used across multiple applications and in combination with other potash fertilizer products. PrimAgro K may be ideal for early-season potassium, while AgroLiquid Sure-K may be more appropriate for mid- and late-season applications. PrimAgro K should not be used as a foliar. If you are unsure how best to apply PrimAgro K or whether a potassium biofertilizer can improve your crops, yields or soil health, we can help. Talk with our agronomy experts to learn more about application strategies and optimal crop nutrient programs.

Composition Guarantee Analysis

Total Nitrogen (N) 1.00%
0.50% Nitrate Nitrogen
0.50% Ammoniacal Nitrogen
Potash (K2O) 8.00%
Sulfur (S) 6.00%
6.00% Combined Sulfur

Also contains non plant food ingredients.

Contains 401 million total colony forming units per gallon

(4.01×108 total CFU/gallon) of the following bacteria:

Bacillus subtilis 5.30×104 CFU/mL
Bacillus methylotrophicus 5.30×104 CFU/mL

PrimAgro K is derived from ammonium nitrate, potassium carbonate, and potassium sulfate. It also contains beneficial bacteria intended to decompose organic matter in the root zone to release potassium and improve potassium absorption. PrimAgro K™ is best applied across a number of smaller applications. This product is not recommended as a foliar.

Microorganisms exempt from CFR requirements – 40 CFR 725. Store in a cool, dark place to maximize shelf life. Expires 12 months from delivery date.

Have us design a custom nutrition plan for you

An AgroLiquid nutrition plan is dependent on your location, climate, soil conditions, and goals with your crop. All of our tailored programs start with reviewing your soil samples with one of our expert agronomists. After our analysis, our team will provide you with a couple options that will help you meet your goals on a budget that won’t break the bank.

AgroLiquid Scientific Advancements

Agronomists and farmers alike now know that healthy crop growth means more than nutrients and water. The soil composition, particularly the microbes in the soil that naturally produce and process nutrients around plant roots, also plays a key role. Our PrimAgro™ series of biofertilizers are designed to correct and restore beneficial microbial soil activity, while still providing essential macronutrients. This is not only better for plant health and yield, but also better for the future of the farm and the land.

Nutriq Technology

This bonds with your nutrients and creates a protective layer that makes up to 80% more of your nutrients available to plants. It sounds like magic, but it’s just science.

Application strategies for PrimAgro K

Planter Placement

Sidedress or topdress

Broadcast or banded over top of the seed zone


Have a specific crop problem you’re trying to solve?

AgroLiquid was founded because there wasn’t a nutritional product that was solving our fertilizer needs; after 35 years of development and research, our chemists, biologists, and agronomists continue to innovate and create the best products on the market. If you have a specific crop problem, ask one of our agronomists and we’ll help you solve it!

PrimAgro K™ potash biofertilizer is used regularly with

Pro Germinator

Pro-Germinator provides well-balanced crop nutrition and supports early growth at planting. It provides a range of nutrients without damage to plants.


eNhance liquid ammonium sulfate fertilizer supplies essential nitrogen and strengthens plants’ essential processes, improving nitrogen and macronutrient utilization.

Micro 500

Micro500 provides boron, zinc, manganese, iron and copper. This product does not contain sulfur. Speak with an agronomist to find the best micronutrient combination for your crops.

Ready to give AgroLiquid a try?

Our suppliers are experienced crop advisors located throughout the U.S. and Canada.
Each crop advisor knows the soil, climate, market, and most popular crops of the area.