4R Nutrient Stewardship is about balance between agronomic and environmental benefits. Nutrient applications need to be applied at the right time, right amount, right rate, and be from the right source. Of course, what is ‘right’ depends on the context. Growing conditions change from year to year, and are changing over time. A better understanding of soil health, or how soil works, will allow producers to make better decisions on nutrient management given the context. Stephen will present an overview of his AAFC research findings on soil health and nutrient management in canola, wheat, soy, and corn in Manitoba.