Ontario Grain Farmer February 2021

ONTARIO 4R NUTRIENT STEWARDSHIP CERTIFICATION In Ontario, the 4R Nutrient Stewardship certification standard was created as part of a voluntary initiative to improve water quality while optimizing the crop uptake of nutrients and minimizing nutrient losses. The 4Rs are based on the principles of the Right Source at the Right Rate, Right Time, and in the Right Place. Soil sampling is the foundation of knowing and understanding soil fertility and associated crop nutrient plans. Without a soil sample, the 4Rs cannot be achieved. The 4R standards specify that a soil test needs to be conducted at least once every four years. And certified crop advisors (CCAs) involved in implementing and following these standards agree it is the foundation of any effective 4R plan. When was the last time you soil sampled? Was it longer than four years ago? Talk to your CCA or agricultural retailer about questions you have, or soil sampling services they can offer to help update your soil tests. Michael Buttenham is the sustainability and environment lead for Grain Farmers of Ontario. l ONTARIO GRAIN FARMER 13 FEBRUARY 2021 This article features insight from Grain Farmers of Ontario's Market Development department.