NutrientStar will inventory and assess all nutrient management tools on the market and share results publicly.

More and more food companies and manufacturers are sourcing nutrient-efficient crops to reduce business risk and pollution in their supply chains. Nutrient management tools and products can help farmers meet this new demand.

The problem is, farmers and their agricultural advisors have little way of knowing which tools perform as advertised without potentially costly, time-consuming trial and error – the only information available on many tools is limited to marketing materials with sparse data. At the top of the supply chain, big companies that are setting goals for fertilizer optimization find it difficult to verify their suppliers’ progress.

Enter NutrientStar. NutrientStar is an independent, third-party program that determines just how effective nutrient management tools are at helping farmers optimize their fertilizer use – and potentially save on input costs.

To identify fertilizer management products and decision support tools that effectively keep nutrients in the field and reduce fertilizer losses. Scientific assessments will provide valuable information on a tool's performance to the entire commodity crop supply chain – from farmers to food companies – while benefiting air and water quality across America.

Meeting NutrientStar standards means you’re meeting your goals, wherever you are in the supply chain.

Food Companies and Manufacturers
The companies that manufacture and sell food products have set goals for more efficient fertilizer use in their supply chains, but they’re still searching for the best way to support tangible changes at the farm level. NutrientStar points farmers to the most effective tools for optimizing their fertilizer use. By recommending that suppliers use NutrientStar information to reach fertilizer efficiency goals, food companies and manufacturers will be able to more accurately claim progress on their goals.

Agribusinesses
Companies that create tools to help farmers manage nitrogen input can submit those tools to NutrientStar for assessment. When the tool appears as NutrientStar-reviewed, farmers, crop advisors and even food companies will gain confidence about its performance, giving the tool's maker a competitive edge in the market. Companies will also benefit from having access to standardized field trial protocols and guidelines for research that will produce robust, credible performance data.

Crop Advisors/
Agricultural Service Providers
By turning to NutrientStar, these providers will have the most current, reliable information available on nutrient management tools to share with their farmer clients. When they recommend certain tools based on transparent performance data, their clients benefit and they build their reputations based on expertise.

Farmers
More and more farmers are turning to nutrient management tools to help them use fertilizer more efficiently. No tool can be perfect 100% of the time, but thanks to NutrientStar, farmers can have greater confidence that their tool of choice can help them cut expenses, meet new sustainability demands coming down the supply chain, and even improve their yields.

Consumers
Consumers pay much more attention these days to how their food is grown. When a food company or manufacturer can truthfully claim – and prove – that their foods are produced more sustainably, consumers are likely to reward that company with more of their business.
The NutrientStar program is built on…
Reliable, localized data
Tools and products are evaluated based on results of field trials by geographic region. If a company submits a tool for evaluation, but that tool has not previously undergone testing that meets NutrientStar protocol, our team will work with the company to plan and implement the necessary field trials. The company can choose to conduct the trials on its own, or for a fee through the NutrientStar field testing network.
Multiple entry points
The process of engaging with NutrientStar varies for every company. NutrientStar is designed not only to evaluate existing tools, but also to offer companies valuable feedback on their tools’ performance – so companies can submit tools for evaluation at any point in the development process, provided field trial data is submitted or field trials are planned.
Objectivity
At the heart of NutrientStar is our independent review panel. Our panel members are respected experts in soil science, nutrient management and precision agriculture technologies who rely on field-tested results to measure tools’ performance.
Meet the NutrientStar team

We’re here to help your organization meet its business and sustainability goals through NutrientStar. We work with companies throughout the review process, plus we’re available to food companies, crop advisors and farmers who want to learn how NutrientStar can benefit them.

Karen Chapman

NutrientStar Project Manager, Environmental Defense Fund

Karen Chapman pairs expertise in implementing farmer networks and coordinating supply chain solutions with top-notch analysis and management skills to help every organization get the most from its engagement with NutrientStar. She helps the makers of nutrient management tools understand the review process and works with the review panel to assess the nutrient management tools that are submitted.

John McGuire

Co-Founder, S Squared | Owner/Manager, Simplified Technology Services

For 20 years, John McGuire has used his skills in data management, geographic information systems, remote sensing and computer programming to improve precision agriculture practices. He has an inside perspective on both agribusinesses and agricultural consulting. He co-founded consulting firm S Squared to partner with Environmental Defense Fund in the establishment and management of the NutrientStar program.

Greg Kneubuhler

Co-Founder, S Squared | President, G&K Concepts

Greg Kneubuhler, owner of G&K Concepts, an independent crop consulting firm, has nearly two decades of agronomic experience in improving corn, soybean and wheat production. His focus on precision nutrient management led to his role in the founding of S Squared and his leadership in building the framework for the NutrientStar program.