4R Nutrient Stewardship can help grow crops sustainably. By using the Right Source of nutrients at the Right Rate, in the Right Time and applying in the Right Place, the 4Rs work to increase production and profitability for farmers while demonstrating social and environmental benefits of farm practices. Nicole Penney, Precision Ag Manager for FS Partners, a 4R certified agri-retailer serving central and southwestern Ontario, walks through the 4R sustainability goals and the specifics of on farm practices aligning with source, rate, time and place. The agriculture sector recognizes the importance of environmental stewardship and its role in ensuring the proper use of fertilizer. Ontario has been a leader in encouraging famers to use nutrient management planning in crop production, and 4R certified agri-retailers to guide best use of nutrients.