Building on the success of its Phosphate Power tool, biologicals specialist Unium Bioscience has launched a complete suite of online nutrient decision-support tools, including Nitrogen Power and Potassium Power, to help UK farmers maximise nutrient efficiency, reduce input costs, and improve crop performance.

Together, the tools form an intuitive, free-to-use platform that allows farmers to assess the biological availability of nitrogen, phosphorus, and potassium (NPK) in their soils. With a simple postcode entry, growers can access tailored, field-specific recommendations, generated by combining soil, weather, and environmental data with peer-reviewed science.

“Nitrogen, phosphorus and potassium availability is often constrained by soil structure, pH, temperature, and moisture,” explains John Haywood at Unium Bioscience.

“Our tools help unlock those limitations by offering growers real-time, location-specific advice to make better-informed nutrition decisions,” he says.

Each nutrient tool is designed to guide practical on-farm decisions, whether it’s choosing the right seed treatments, foliar applications, or biostimulants to enhance root growth, nutrient uptake, and overall plant resilience.

Nitrogen Power

Rising nitrogen costs mean understanding what’s already available in the soil can help to make crucial savings. This tool allows farmers and agronomists to simply enter a postcode and crop type to see nitrogen bioavailability (rated via a clear traffic light system) and volatilisation risk.

Using up to 150 days of climatic data, including temperature and rainfall, alongside soil type and crop uptake, it provides a reliable picture of in-season nitrogen availability, as well as current volatilisation levels based on weather conditions. Access it here: https://www.uniumbioscience.com/nitrogen-power-nitrogen-calculator/

Phosphate Power

P is classed as being limiting where the soil temperature is too cold and/or soil moisture is too low. Phosphate Power uses climatic and soil temperature information to calculate available soil phosphate. The grower or agronomist enters their post code and will see a forecast of P bioavailability for the next seven days, with a simple traffic light system ranging from poor to good. Access it here: https://www.uniumbioscience.com/phosphate-calculator/

Potassium Power

Potassium Power predicts available K in a similar way to Phosphate Power. By entering a postcode and previous soil management (straw incorporation), growers and agronomists receive a seven-day forecast of K bioavailability. The tool uses climatic data, soil moisture and texture, along with Cation Exchange Capacity (CEC), to assess K retention and availability to the crop. Access it here: https://www.uniumbioscience.com/potassium-power-potassium-calculator/

“This suite of tools helps growers understand when and where nutrient limitations might occur, and how to act on them with the right product, at the right time, and in the right form,” says John. “When conditions are suboptimal, early root establishment is everything.”

The newly launched Nitrogen Power and Potassium Power tools complement Phosphate Power, which was released in Autumn 2024 and widely adopted by farmers seeking a smarter approach to a nutrition strategy.

Cambridgeshire arable farmer Russ McKenzie has already trialled the system on-farm:

“Using Unium’s tools, we’ve seen measurable improvements - both in reduced input costs and stronger crop performance. It’s helping us challenge conventional practices and take a more targeted, data-driven approach to nutrition.”

Key Benefits of the NPK suite:

• Real-time, postcode-based nutrient recommendations
• Smarter, more efficient use of fertilisers and biostimulants
• Improved early root development and nutrient uptake
• Designed to support profitability and long-term soil health

“Farmers today face the dual pressure of sustainability and performance,” says John.

“With our NPK tools, we’re giving them a simple but powerful way to improve decision-making and get more from every hectare,” he adds.

The Full Power NPK suite is now live, accessible at: https://www.uniumbioscience.com/