
4R Nutrient Stewardship
Optimizing crop production and on-farm economics while protecting the environment.
What is 4R Nutrient Stewardship?
4R Nutrient Stewardship is a science-based framework that guides fertilizer decisions using the Right Source, Rate, Time, and Place. These practices improve crop performance, strengthen profitability, and reduce nutrient loss to the environment.
How 4Rs Works for You

For Farmers
4R practices help you make the most of your fertilizer investment. By optimizing fertilizer efficiency, you can boost productivity, protect soil and water, and improve your bottom line.

For Nutrient Specialists
4R Nutrient Stewardship provides a clear, science-based framework to guide fertilizer recommendations. It helps you deliver higher-value advice, build trust with farmers, and differentiate your services.
Benefits of 4R Nutrient Stewardship
Economic Advantage
Improve profitability with efficient nutrient management
Enhanced Crop Yields
Optimize nutrient use for higher productivity
Environmental Protection
Reduce nutrient loss to improve soil and water quality
Climate Impact
Reduce emissions intensity and support adoption of practices that advance climate goals
4R Programming
Fertilizer Canada supports national adoption of 4R Nutrient Stewardship through investment in research, training, surveying, verification programs, third-party incentive programs and industry partnerships.

4R Designation
A voluntary professional training program for agri-retailers, agronomists, and certified crop advisors. Designated specialists can develop 4R Nutrient Stewardship plans for farmers and report 4R acres.

4R Certification
A voluntary third-party audited program that verifies nutrient service providers, such as ag-retailers and agricultural service companies, are implementing 4R practices with their farmer customers. Currently available in Ontario.
4Rs Across Canada
Canadian farmers are leaders in sustainability. Fertilizer Canada works with industry and government to track 4R adoption, support continuous improvement, and advance environmental protection.

Fertilizer Use Survey
An annual national survey tracking farmer self reported fertilizer practices, 4R adoption trends and barriers, and farmer perspectives.

4R Acres
A national count of acres managed using 4R Nutrient Stewardship practices through Fertilizer Canada’s agronomy reporting programs (Designation and Certification).

Provincial Partnerships
Collaborative agreements with provincial governments and agricultural partners to expand 4R adoption and support environmental outcomes on the ground.
Hear from Farmers and Retailers
Farmers and retailers across Canada share their experiences using the 4R Nutrient Stewardship framework. Discover how the 4Rs have transformed their approach to nutrient stewardship.
Upgrade Your Knowledge
Expand your knowledge of fertilizer safety, nutrient stewardship, and sustainable practices with Fertilizer Canada’s e-learning courses. Designed for industry professionals, educators, and anyone passionate about agriculture, our courses provide valuable insights and certifications to help you succeed.

In this section
4R Explainer
Understand how 4R Nutrient Stewardship – Right Source @ Right Rate, Right Time, and Right place – works and how it can help optimize nutrient uptake.
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4R Designation
The 4R Designation program educates agri-retailers and certified crop advisors on in-depth sustainable fertilizer principles, allowing them to provide tailored advice to farmer customers.
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4R Certification
Learn about the 4R Certification program for nutrient service providers that confirms adherence to 4R practices by their farmer customers.
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e-learning
Want to deepen your knowledge? Check out our e-learning platform for courses and resources on fertilizer use, safety, and sustainability.
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4R’s Across Canada
See how Fertilizer Canada has collaborated with agriculture stakeholders and provincial governments to promote and enhance the implementation and adoption of 4R practices across Canada.
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4R Climate-Smart Protocol
Discover how a 4R Climate-Smart Protocol could support farmers in adopting 4R best management practices.
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Plant Nutrition Canada
Plant Nutrition Canada provides science support for the fertilizer industry’s efforts to advance nutrient stewardship. We apply, interpret and extend science for sustainable plant nutrition.
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