Does rock mineralizer increase yield of heritage wheat?

Farmer: Shelley Spruit

Farm: Against the Grain Farms

Region: East

Publish Date: February 4, 2020

Article Type: Research Project

Research Priorities: Soil Health 

Basalt rock dust is a remineralizer that is used in other parts of the world but there is limited information on its effectiveness to supply crops with nutrients in neutral and alkaline soils. To test the efficacy of basalt as a mineralizer for grain, Shelley and Tony grew Heritage Amber Spring Wheat in replicated plots with and without basalt amendments.

Key Findings

  • Basalt rock dust had no detectable effect on Heritage Amber Spring Wheat yield, and benefits may take years to detect.
  • There were also no other observable differences in growth, seed quality or disease resistance between treatment and control.
  • It was a bad year for wheat production but, overall, Heritage Amber Spring Wheat – a landrace variety – performed well against lodging and Fusarium.