growing winter wheat

Selecting the right source will help ensure your soil has a balanced supply of essential plant nutrients. Performing annual soil tests and applying nutrients to meet crop requirements will assist in deciding on the right rate. Applying nutrients at the right time will ensure nutrient uptake when the demand is high. Lastly, the right place helps minimize the risk of loss while increasing the availability of nutrients to the crop.

The 4Rs of Nutrient Stewardship is a site-specific, integrated approach that considers source, rate, time, and place decisions for the cropping system. These decisions work towards the economic, social, and environmental sustainability goals for the farm.

To learn more about 4R practices and programs in Canada, visit