Digging into Research
On the semi-arid plains, this 6-year crop rotation study found that increasing cropping intensity with spring wheat, pea or lentil could match annualized total grain yields of winter wheat-chemfallow, as long as winter wheat followed a cover crop or fallow. Winter wheat-fallow rotations are practiced to...
Three enhanced efficiency nitrogen (N) fertilizers applied at seeding or in split applications between fall and spring did not reduce nitrous oxide emissions compared to conventional urea or UAN fertilizer when applied at 80% of recommended rate. A split application of 30% N at seeding...
A long-term study at Indian Head, Saskatchewan evaluated the effect of medic on grain yield, N and P of flax, wheat and oats with three different N treatments. Overall, medic had the greatest impact on crop productivity at the low N rate of 20 per...
Soybeans were found to be largely unresponsive to potassium (K) fertilizer even on low K-testing soils in Manitoba. Despite visual K deficiency symptoms mid-season, there were still no yield responses to K fertilizer at varying rates and placements. The current soil test threshold of 100...
At chloride-responsive sites, Cl- fertilization increased annual canarygrass yield by 70%. However, without Cl- fertilizer, the application of other macro- and micro-nutrients did not provide a yield response at these sites. Additionally, soil testing did not adequately predict Cl- fertilizer response, indicating that Cl- fertilizer...
A nitrogen fertilization rate of 44.5 lbs N/ac maximized canarygrass seed yield. Foliar fungicide application increased seed yield by 8.5%, and is important in areas where septoria leaf mottle is prevalent. The fungicide application did not improve the responsiveness of canarygrass to N fertilizer, so...
A rate of no more than 9 lbs. N + 9 lbs. P2O5/ac as a starter seed-row 28-26-0 fertilizer blend was found to be the optimum rate that maximized yield in soybean and lentil. Higher rates reduced emergence and decreased the proportion of nitrogen derived...
In the first season after winter bale grazing, forage yield at the grazing site was reduced by 68% compared to control plots, but no difference in the second season. Residual nitrate-N and Olsen P in the soil were also higher at the centre of the...
Twenty short season soybean cultivars were evaluated for root rot on saline soils. While there were differences among cultivars in tolerance to Fusarium avenaceum and Rhizoctonia solani and different salinity levels, all cultivars were still impacted to varying degrees. The objectives of the research were to...
Applying monoammonium phosphate fertilizer using broadcast without incorporation, especially at rates above that normally recommended for a single season, is not recommended due to the increased potential for P export offsite in spring snowmelt runoff. Phosphorus from non-point sources such as snowmelt runoff is a contributor...
