Digging into Research
Four experiments conducted from 2015 through 2022 under dryland conditions in southern Alberta found that narrow row spacing of 20 inches and planting rates of 25,000 seeds/ac with nitrogen rates between 100 and 160 lbs N/ac optimized yield. Early maturing grain corn hybrids have expanded where...
Canola yield increased with increasing plant stand no matter flea beetle density, flea beetle control methods or geographic regions. Insecticide seed treatment and foliar spray at threshold level produced similar yield. Flea beetles are a perennial pest issue on the Canadian Prairies. Insecticide-coated canola seed, primarily...
Comparing five early- and five late-maturing CWRS wheat varieties, ultra-earlyseeded late-maturing CWRS wheat varieties generally yielded higher with more stable yields than either early-maturing cultivars or conventional seeding. Ultra-early seeding increased yield stability for nine of the ten cultivars. Numerous studies have been conducted since 2020...
Phosphorus (P) fertilization did not increase seed yield, regardless of P rate, P placement or Olsen soil test P level, except for one out of 28 site-years. High rates of seed-placed P reduced stand establishment at 5 of 28 site-years. Limited research had been conducted on...
Averaged across 4 years, tall stubble increased yields by about 13% and short stubble increased yields by about 4% compared to yields from cultivated stubble treatments. On the semi-arid Prairies, moisture is often the limiting factor in pulse crop production. While this research is 20 years...
The economic optimum seeding rate for irrigated soybeans in southern Alberta was calculated to be 58 seeds/m2 at 80% emergence, which is equivalent to 5.8 seeds/ft2 or 252,000 seeds/acre. In southern Alberta, the development of very early maturing varieties in the MG 00 and MG 000...
Moving to a high seeding rate increased DM and TDN yields and decreased CP and P concentrations in forage corn. Using a high nitrogen fertilizer rate increased yields of DM, TDN and CP, increased soluble protein concentration, and reduced P concentration. However, when net returns...
Low plant density, split nitrogen, and PGR application all showed potential to reduce lodging risk without reducing grain yield or protein concentration. Today’s high yielding spring wheat varieties bring with them the potential for lodging under high nitrogen inputs. The objectives of this study were to...
Using fungicide and a high nitrogen (N) rate most consistently increased flax yield (11% increase). The combination of high plant density, narrow row spacing, high N fertilizer, and fungicide produced the highest yield response (23% more), but not in unfavorable growing environments. The most well-rounded...
Under irrigated and high-precipitation conditions, canola yield from 12 inch narrow-row precision planted canola was 10% higher than canola seeded with a 12 inch row air drill. However, under more water-limited conditions, yield from air drill seeded canola was equal or higher than the precision...
