Precision Potassium and Sulfur Fertilizer to Nourish Crops

Kalibrate® is a chloride- and hydroxide-free potassium and sulfur fertilizer. Kalibrate helps plants access potassium and sulfur that is critical to growth and development from seedling to harvest. It can be used by itself to provide plants with an extra source of potassium and sulfur, or it can be used in combination with other AgroLiquid products to provide a complete, balanced fertilizer program. Kalibrate is designed to be easy to use and apply, so growers can give crops and trees what they need without expending lots of extra time and money. Since Kalibrate is a chloride- and hydroxide-free potassium and sulfur fertilizer, it also provides essential nourishment to plants and trees without harming the long-term health of the soil.

Product Benefits

  • Supports early-season delivery
  • Resistant to freezing
  • Easy to use with other nutrients and crop protection products
  • Chloride- and hydroxide-free to protect from salt toxicity
  • Adds crop-available sulfur as well as nitrogen and potassium
  • Multiple application methods
  • Suitable for corn, soybeans, sugarbeets, wheat, and other row crops

Potassium and Sulfur Fertilizer That is Easy to Apply

Kalibrate has excellent application flexibility and can be applied with Y-Drop, drip tape, microjets or a 2×2 planter system without risk of crop injury. Also, this product has superior application compatibility and can be partnered with all AgroLiquid products, as well as many other industry compounds*. Kalibrate’s research-proven technologies have been rewarding growers with dependable results in all soil types and cropping systems.

With this variety of application methods available, Kalibrate is the preferred potassium and sulfur fertilizer for many farmers and growers. Since it resists freezing and can be used with other nutrients and crop protection products, it’s ideal for farmers seeking early-season delivery of corn, sugarbeets, soybeans, or wheat.

*Always consult label directions and perform a jar test before mixing any components.

Protected by Nutriq Technology

In many situations, soil systems may have potassium and sulfur, but they are not in a form that plants can use. Potassium and sulfur can bond with other elements in the soil and form bonds that plant roots can’t break down. This means that even seemingly healthy soils can still cause potassium or sulfur deficiencies. Worse, many potassium and sulfur fertilizers can become tied up in the soil compounds in similar ways. However, Kalibrate is protected from becoming tied up in the soil, thanks to Nutriq Technology.

Kalibrate was developed as a full-season, planter-time liquid potassium source delivered by AgroLiquid’s Nutriq Technology. Protected in a plant-based polymer chain, the potassium and sulfur resist breaking down in the soil, so it can be continually used by plants. This not only gives plants the support they need to start growing strong, but it also provides continuous nutritional support throughout critical growing stages.

Give Your Plants Extra Nutritional Support

Potassium is one of the most essential nutrients that plants need for strong growth and production. Potassium, along with nitrogen and phosphorus, power almost every plant process in some way. In order for water, nutrients, and carbohydrates to move through a plant’s tissues, it needs potassium. It’s also important for the production of protein, starches, and adenosine triphosphate (ATP), which is an important component in regulating photosynthesis. In general, without potassium, plants can’t start initial growth, produce flowers, fruits, seeds, or nearly anything else. Kalibrate is a potassium fertilizer that supports continuous growth through each stage of the plant’s life.

Sulfur, though not not needed in as large of quantities as potassium, also plays a vital role in every plant’s growth and development. Sulfur is essential for the formation of amino acids, proteins, and oils. It’s also important for producing chlorophyll and activating several enzymes and vitamins. Sulfur is often introduced into the soil through decaying organic matter, but this isn’t always possible for some soil types. Sandy soils and areas with high levels of rainfall can cause usable sulfur to leach away. Kalibrate helps to restore sulfur in the soil, without adding excessive soil salinity.

Chloride- and Hydroxide-Free Potassium Fertilizer

Many potassium fertilizers contain chloride and hydroxide, which can affect the long-term health of the soil. Chlorides and hydroxides can affect soil salinity. When there is too much salt build-up in the soil, it can interfere with a plant’s ability to take in water from the soil. It can also interfere with plants’ ability to take in other elements and compounds. Kalibrate is a chloride and hydroxide-free potassium fertilizer that can help you fight salt toxicity, and maintain the long-term health of your soil.

Composition Guarantee Analysis

Total Nitrogen (N) 2.00%
.05% Nitrate Nitrogen
1.5o% Ammoniacal Nitrogen
Soluble Potash (K2O) 10.00%
Sulfur (s) 6.00%
6.00% Combined Sulfur

Kalibrate is designed to be easy to use, making it useful for nearly any crop or climate, including freezing temperatures. Kalibrate is ideally combined with other liquid fertilizers such as Pro-Germinator and Sure-K throughout the season.  Kalibrate is not recommended as a foliar.

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

Though all plants need similar nutrients, not all fertilizer deliver them the same way. AgroLiquid fertilizers are designed to give crops the nutrients they need at the right time. This helps to optimize growth from germination through harvest. In addition, our high-efficiency liquid fertilizers increase nutrient utilization while avoiding nutrient toxification and salt toxificiation. This means you benefit from the same or increased yields, while improving overall soil quality.

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 Kalibrate™

Planter placement

Topdress or sidedress

Broadcast or banded over 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!

Kalibrate 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.

primagro p

PrimAgro P is a liquid phosphorus fertilizer that also contains our BioActivities microorganisms to improve soil health and nutrient 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.