From a crop nutrition perspective, nitrogen losses as N2O or nitrous oxide pale in comparison to what's lost in N2 form, but N2O has a much greater impact on the total greenhouse gas emissions from fertilizer. As part of this Wheat School episode filmed at Manitoba Crop Diagnostic School, Manitoba Agriculture's John Heard shares a... Read More
Category: Crop Schools
When thinking about protecting yield from disease, one of the first things to understand is where yield actually comes from. Jeremy Boychyn, agronomy research extension specialist with Alberta Wheat and Barley Commissions, understanding how the each leaf of the wheat plant builds yield helps inform decisions on how to best manage risks to yield. "One... Read More
Water hardness is a factor that needs to be considered when spraying, especially when it comes to glyphosate. The high amount of dissolved calcium and magnesium in hard water will tie up weak acid salts such as glyphosate, making it ineffective at killing weeds, and potentially increasing the risk of weeds developing herbicide resistance, explains... Read More
Deciding when and how much pesticide to spray on a pulse crop can have a significant impact on the yield come harvest, but aside from yield, growers need to consider and be aware of maximum residue limits, or MRLs, for each specific crop to ensure they don't fall outside of the acceptable range. On this... Read More
Soil health has certainly gained more attention and become a higher priority when it comes to farming practices, but it remains a very personal idea, depending on who you talk to and where you are. While the results and practices may look similar, the definition of success when it comes to soil health can differ... Read More
Wireworms are one of the biggest insect pests for cereals across the Prairies. Not only can they cause extreme damage to the crop, they are incredibly difficult to control. John Laurie, research scientist of molecular biology with Agriculture and Agri-Food Canada (AAFC), and Haley Catton, research scientist of field crop entomology at AAFC, have been... Read More
Pea aphids love to feed off the sap flowing to new pods on the plant. The trouble is, just two aphids per plant at the right stage can siphon off as much as five per cent of yield. Laura Schmidt, production specialist with the Manitoba Pulse and Soybean Growers, says that modern pea varieties are... Read More
Grasshoppers are usually associated with dry conditions and go hand-in-hand with drought. And yet, grasshoppers are once again showing up in high numbers and causing crop damage in areas of the Eastern Prairies where there's been flooding, and more than enough rain and soil moisture for the first half of the growing season. Why is... Read More
Diamondback moths blow in at some point early in the season (thanks, America!), and set about living on the Prairies and in the canola crop for the rest of the growing season. Jordan Bannerman, entomologist with the University of Manitoba, says that understanding when the moths arrive, through the use of pheromone traps, and how... Read More
Grasshoppers are out there, and, in some areas in the Prairies, in large numbers. It's important to get into your field and scout, not only for populations, but also as a friendly reminder that not all hopping insects are grasshoppers. There are other insects in the field that hop and jump but aren't grasshoppers, says... Read More