Agronomic and Economic Assessment of Variable Rate
Determine the agronomic information required to choose the optimum nutrient rates and assess the economic the benefits of variable rate fertilization.
IPNI-1995-CAN-SK17
30 Mar 1997
1996 Annual Interpretive Summary
Agronomic and Economic Assessment of Variable Rate Fertilization, 1996
A precision farming study was initiated on rolling terrain in central Saskatchewan to evaluate variable rate fertilization based on landscape position. Part of the study involves developing mapping tools to separate the landscape into differing management units (i.e. knolls, mid- and lower slopes). First year results have been very encouraging using this approach. Wheat and canola growth, and yields have been found to vary with the landscape management units defined and to respond differently to applied N and P. Using landscape as a basis for delineating management units for fertilizer inputs has the potential to make precision farming practices profitable in the Canadian prairies. SK-17