P.O. Box 64089
St. Paul,
MN 55164
ph: 651-355-5126
Agrium Inc.
13131 Lake Fraser Drive SE
Calgary, Alberta Canada T2J 7E8
,
ph: 403.225.7000 or toll free Agronomy Line: 1.800.661.6757
28232 Endicott Rd.
Colfax,
WA 99111
ph: (509) 397-4691
4R Nutrient Stewardship represents an innovative approach to fertilizer best management practices (BMPs). The 4Rs imply there are four aspects to every fertilizer application and it provides a framework to assess whether a given crop has access to the necessary nutrients. Asking “Was the crop given the right source at the right rate, at the right time, and in the right place?” helps identify opportunities to improve fertilizer efficiency and prevent nutrient movement from each field.