SNEAK PEEK: A small amount of tillage isn’t disastrous for soil quality or yields
By Top Crop Manager
Jeff Schoenau, a soil scientist with the University of Saskatchewan was involved in a research study conducted in the mid-2000s that compared four tillage treatments that were imposed on no-till fields (longer than 10 years) at Rosthern (Black soil), Tisdale (Gray soil) and Central Butte (Brown soil), Sask.
The minimum-till treatment was a single cultivation with a chisel plow, with sweeps in the spring prior to seeding. Conventional tillage was a fall and spring cultivation. A maximum tillage treatment included a fall and spring cultivation plus a spring tandem discing. These tillage treatments were compared to the standard no-till control treatment.
As it turns out, total and particulate soil organic carbon, soil pH, and soil aggregation were not affected by the tillage operations….