Winter wheat fields across Ontario have great yield potential as the crop grows quickly thanks to favorable growing conditions in the spring.
With growers busy initially dosing nitrogen to crops, focus has shifted to whether crops can benefit from plant growth regulators (PGRs) as wheat progresses beyond growth stage 30.
About this episode Real Agriculture Wheat SchoolSyngenta Canada agronomist Marieke Vanderlaan and moderator Bernard Tobin discuss findings from three years of Great Lakes Yield Enhancement Network (YEN) data: the number of ears per square foot. highlights the important role it can play in high-yielding wheat.
See also: Wheat School: More Heads, More Yields
Simply put, more head per square foot means higher yield potential, but it also increases the risk of lodging and crop loss in these fields. In the video, Vanderlaan evaluates a rapidly developing wheat field near West Montrose, Ont., to determine if PGR would be beneficial and when to apply it.
The total number of stems in this field averages 80 stems per square foot. Based on his experience scouting wheat fields since the introduction of his PGR in Ontario several years ago, Vanderlaan says the crop will benefit once the stalk count reaches his 65 or higher. states.
Once the decision to use PGR has been confirmed, the next task is to decide when to make the application. Vanderlaan says the sweet spot for optimal application of growth regulators is between growth stages 30 and 32, but there’s no need to panic if your crop is growing quickly. Vanderlaan says his PGR product from Syngenta, his Moddus, can be applied up to growth stage 37.
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