Ontario Diagnostic Day 8: Managing fertility, rotation impacts, and finding tar spot


It’s time for Day 8, our final episode of the virtual Ontario Diagnostic Days!

To wrap up the series, RealAgriculture LIVE! host Shaun Haney is joined by Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) plant pathologist Albert Tenuta, and University of Guelph associate professor Dave Hooker.

During the broadcast, Tenuta looks back at the success of the four-month series, which has featured a new one-hour agronomy video learning opportunity for farmers and agronomists every two weeks. With more than 40 in-field video sessions, Ontario’s top agriculture scientists, researchers, and extension specialists have offered insight on everything from planting timing and planter set-up to controlling troublesome weeds, selecting cover crops, sprayer application, insect and disease control, and much more.

On our final episode, we travel with Tenuta to a field near Ridgetown, Ont. where tar spot, a corn leaf disease, was discovered last month for the first time in the province. He shares insights on how to identify the disease, potential yield impact and management strategies to combat the yield-robbing pathogen. (Story continues after the video.)

Hooker then joins Haney to discuss long-term fertility trials for corn, soybeans and wheat. In a field report, Hooker and OMAFRA soybean specialist Horst Bohner compare two fertility management strategies — build and maintain versus the sufficiency approach. When it comes to the bottom line, growers can expect to see a significant advantage for build and maintain, says Hooker — 12 bushels per acre for corn, 10 bushels for wheat and three for soybeans.

In our final segment, Hooker wraps up the series with a look at the benefits of crop diversity and how crop rotations can impact yield and make soils more resilient to the impact of weather events and the changing climate.

Tenuta also reminds farmers and agronomists that all eight episodes will continue to be available for viewing throughout the fall and winter months here on RealAgriculture as well as OMAFRA’s Field Crop News website.

Virtual Ontario Diagnostic Days also provide some of the best opportunities for certified crop advisors (CCAs) to acquire a broad range of CEUs.

Certified crop advisors are able to collect eight CEUs by registering for the event at: https://bdc.ridgetownc.com/useservices/conferencemanagement/southwest-crop-diagnostic-days/.

Registration is required for processing CEU credit requests and can be done up to December 1, 2020. A CEU code will be provided on screen at various points during each episode.

The videos are free and registration is not required for Grain Farmers of Ontario members, media, and those not seeking CEU credits.

Registration Fees  — Only required if applying for CEU Credits

·      $100 (includes HST) for eight CEU credits. A receipt/confirmation email will be provided.

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