Canola frequency effects on nutrient turnover and root-microbe interactions

The Challenge

While the effects of disease on crop productivity can be immediately apparent with shortened rotations, negative impacts on soil properties such as balanced nutrient cycling and soil biology are more difficult to recognize.

The Project

Relate nutrient flux differences in long-term canola frequency treatments to corresponding changes in microbial community structure and functional potential.

The Results

Nutrient fluxes in short rotation canola are dependent on fertilizer management, confirming that soil-based fertilizer testing should be used as a primary nutrient management tool. In addition, fungal communities increased in roots and soil, which could contribute to the disease profile of canola.

Grower Benefits

This project will provide new knowledge of the impacts of short rotation canola on soil properties and the microorganisms that associate with canola roots, ultimately affecting crop productivity and profitability.