PSI® Technology: Redefining Plant Biostimulants
In the face of increasing agricultural challenges, growers are being asked to deliver more yield, better quality, and greater consistency than ever before. This demand comes at a time when natural resources are under strain, climate variability is impacting growing conditions, and environmental regulations are tightening. Farmers and agronomists are seeking solutions that do not simply boost performance for one season but that fit into a long-term, sustainable strategy. PSI® Technology, developed by Brandon Bioscience, is changing the way plant biostimulants are understood and applied. It is not a generic extract or a loosely defined blend; it is a platform that combines scientific precision, proven field performance, and environmental responsibility in one coherent system.
The Growing Demand for Smarter Agriculture
Global agriculture is undergoing a transformation. Population growth is driving the need for increased food production, yet the land available for farming is finite. At the same time, climate patterns are becoming more erratic, leading to extremes such as prolonged droughts, sudden heatwaves, and salinity build-up in soils. Traditional inputs, from water to fertilisers, are becoming more expensive, more regulated, and in some cases, less effective under stress conditions. These pressures have created a strong demand for smarter agricultural tools, solutions that are grounded in research, targeted in their application, and proven in both controlled trials and real-world conditions. PSI® Technology is built with this context in mind, offering growers a way to do more with less while maintaining profitability.
From Nature to Precision Engineering
PSI® Technology starts with nature’s own biological resources, most notably the brown seaweed Ascophyllum nodosum. For centuries, coastal farmers have recognised its benefits for plant growth, but raw material alone is not enough to achieve modern agricultural demands. Brandon Bioscience has spent years refining proprietary extraction processes that preserve, release, and concentrate the most valuable bioactive compounds from this seaweed. The process is carefully controlled to ensure that the composition, the exact size, structure, and molecular profile of these compounds, match the intended crop benefit. This is not simply about taking something from nature; it is about engineering precision into a natural product so that its performance is repeatable, reliable, and optimised for targeted outcomes.
How PSI® Technology Works
The core principle behind PSI® Technology is plant signal induction. Plants communicate internally through biochemical signals that control growth, flowering, nutrient uptake, and stress responses. PSI® Technology tunes into this communication network and delivers bioactive molecules that enhance or adjust these signals at just the right time. By doing so, it helps plants to respond more efficiently to their environment, whether that means increasing water uptake during drought, improving nutrient efficiency when fertiliser inputs are reduced, or enhancing flowering and fruit set under heat stress. Every product developed under the PSI® platform has a clearly defined mode of action that is supported by laboratory analysis, physiological studies, and field data.
Unlocking Bioactive Potential
Not all seaweed extracts are created equal. The effectiveness of a biostimulant depends on the precise composition of its bioactive compounds, and this composition is influenced by the extraction process, temperature, pH, and other critical factors. PSI® Technology uses advanced physicochemical and bioactivity analysis to ensure the final product contains the optimal profile for its intended purpose. This means that growers can be confident they are applying a biostimulant that has been designed, not guessed at.
Targeted Modes of Action for Specific Crop Needs
One of the strengths of PSI® Technology is its flexibility. It is not tied to a single “all-purpose” product. Instead, it supports a portfolio of solutions, each aimed at solving a specific crop challenge. For example, products like ISKAMAR® target water use efficiency by enhancing stomatal control and relative water content, while BLOCSAL® improves tolerance to irrigation salinity by promoting ionic balance and osmotic adjustment. This targeted approach ensures that each product has a clear role and measurable outcomes for the grower.
Precision That Translates to Performance
Precision without performance is meaningless. PSI® Technology products are validated through a multi-step process that includes controlled environment trials, replicated field studies, and commercial-scale demonstrations. This layered testing approach allows the company to gather data across crop types, climatic zones, and farming systems, ensuring that results are consistent and reproducible. Growers need to know that when they apply a product, it will work as expected, regardless of the season’s variability.
Consistency Through Scientific Validation
By applying strict quality control to every stage of production, from raw material selection to final formulation, PSI® Technology ensures batch-to-batch consistency. This scientific discipline is why PSI® Technology-backed products have a reliability rate that growers can trust year after year.
Proven Benefits in the Field
The proof of any agricultural technology lies in the field. Trials with PSI® Technology products have shown tangible improvements such as increased yield, better quality markers like °Brix content in fruit, enhanced root biomass, and improved resilience to stress. Importantly, these benefits are seen not only under stress conditions but also in optimally managed crops, meaning the technology adds value across a range of growing scenarios.
Sustainability at the Core
Sustainability is woven into the DNA of PSI® Technology. The ability to improve yield and quality while using fewer resources directly addresses the dual challenge of feeding a growing population and protecting the planet’s ecosystems. By improving nutrient use efficiency, PSI® products can help reduce fertiliser inputs, cutting both costs and environmental impact. Similarly, by enhancing water use efficiency, they allow crops to maintain performance with less irrigation, a critical advantage in regions facing water scarcity.
Reducing Inputs, Maximising Output
With PSI® Technology, growers can maintain or even increase yields while reducing inputs such as nitrogen fertiliser or irrigation water. This shift not only saves money but also reduces the farm’s carbon footprint and lowers the risk of nutrient leaching into waterways.
Supporting Climate-Resilient Agriculture
As climate change accelerates, the ability to protect yields against unpredictable stress events becomes a key measure of resilience. PSI® Technology equips crops with physiological advantages that allow them to recover faster from drought, heat, or salinity, protecting growers’ profitability and food supply stability.
PSI® Technology in Action
The versatility of PSI® Technology has been proven in a variety of settings. In potatoes grown under severe water deficit, products have increased relative water content and preserved tuber yield. In table grapes and tomatoes exposed to heat stress, targeted formulations have improved fruit set and marketable yield. These successes are the result of not just the technology itself, but of collaboration, working closely with growers, agronomists, and research partners to ensure that the solutions fit into real-world farming systems.
Looking Ahead: Innovation for the Future of Farming
Brandon Bioscience continues to invest in research to refine PSI® Technology further. This includes exploring new bioactive molecules, developing advanced extraction techniques, and expanding field validation programmes. The aim is to anticipate future agricultural challenges and deliver solutions that are not only effective but also economically and environmentally sustainable.
Learn More About PSI® Technology
If you would like to discover more about how PSI® Technology can support your crops in achieving higher performance while meeting sustainability goals, contact us to learn more.
