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Nutrient Stewardship

Help your grower customers get their acres counted



Sustainable farming is the future. In many cases, that future is already underway. 4R Nutrient Stewardship (Right Source @ Right Rate, Right Time, Right Place ®) lets the world know when food has been sustainably grown.

We want to demonstrate this to the world, by getting Canadian agri-retailers and crop advisors 4R Certified and counting millions of acres under 4R Nutrient Stewardship, to demonstrate how Canada is a leader in sustainable farming.

The Ontario 4R Certification program complements an existing program of the same name in Ohio. Together, agri-retailers and farmers from both sides of the border will work in tandem to reduce agricultural impacts to the environment – especially in the Great Lakes basin – while increasing their crop productivity.

1. Learn More About 4R Certification

4R Certification is a voluntary program designed to allow agri-retailers in Ontario to align their business practices with the sustainability principles of 4R Nutrient Stewardship, as verified by a third-party of 37 auditable standards

2. Gather the Required Evidence for Your 4R Certification Audit

The below resources will help you organize for your 4R Certification Audit and become 4R Certified.

Supporting documents referenced in the summary will be provided upon request

3. Book Your 4R Certification Pre-Audit

Your 4R Certification Pre-Audit is a training session, offered by Warriner Ag, that allows agri-retailers to participate in a trail run of the audit process and learn more about the 37 standards.

Book Your Pre-Audit Now

4. Schedule Your 4R Certification Audit

Now is the time to schedule your official 4R Certification Audit – the last step to becoming 4R Certified!

Book your audit now with one of our auditors below: 

Bernie Benoit

Cheryl Garniss


Program Updates and Technical Bulletins

Resources: Get the word out


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