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Jonathan Zettler πŸ‡¨πŸ‡¦ Profile
Jonathan Zettler πŸ‡¨πŸ‡¦

@FieldwalkerAg

Followers
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Following
10K
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I post about field crops | CCA-ON | Benchmarking Yield Potential | @TheCropwalker Newsletter, SWAT Maps, Crop Planning, Metos Weather Stations

Ontario, Canada
Joined January 2013
Don't wanna be here? Send us removal request.
@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
20 days
According to OntAg - about 99% of Ontario's soybeans have been harvested and 69% of grain corn is off as of Sunday evening - November 16th, 2025. Thank you for your participation, will poll again Friday Nov 28th for the last poll of the harvest season. Full report
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@JLinvilleFert
Josh Linville
2 days
To everyone new to fertilizer markets. Reason why prices are high, here are the highlights: Urea - European production at 75% UAN - Russian exports low/European production at 75% NH3 - Russia/Europe Phosphate - Chinese exports low Potash - it is actually decently priced This
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
5 days
When it comes to top performers (sports, business, life), the
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@kowalchukfarms1
John Kowalchuk🧒
8 days
Unsolicited advice from a regular πŸ‡¨πŸ‡¦ farmer: Ag in Canada is in an interesting position once again We are facing rising costs of production and political pressure on commodity prices It’s always good to know your numbers but it’s even more important in the current state of
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
8 days
Seed treater for on-farm trials? Best option is?
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@JLinvilleFert
Josh Linville
9 days
Phosphate values are continuing to get squeezed lower out there. Finally seeing some relief. That said, do not bury your head in the sand and try to call the bottom. Everyone I know sells their grain in layers. Fertilizer purchases should be the same.
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
9 days
Let's talk planters, your doing a rebuild, what row unit are you putting on the frame?
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@GrainFarmers
Grain Farmers of Ontario
14 days
Unlock the secrets to high-yield wheat with the Great Lakes YEN, a pioneering cross-border collaboration! Connect with farmers, agronomists, academics, and agricultural experts to elevate your farming game. Learn more and register:
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@GrainFarmers
Grain Farmers of Ontario
10 days
The 2025 Ontario Soybean Variety Trial Report is now available in the soybean section on https://t.co/CdEL2tIwy6. The trials contain registered or certified varieties and share multi-year agronomic performance tables, with trial locations across the province. Grain Farmers of
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@GrainFarmers
Grain Farmers of Ontario
10 days
The 2025 Ontario Hybrid Corn Performance Trials are now available in the corn section on https://t.co/CdEL2tIwy6. The trials encompass multiple locations across Ontario. Grain Farmers of Ontario is a voting member for the Ontario Corn Committee.
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
11 days
Still working at corn? Trying to pain the picture of where, still seeing some out in my travels.
@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
14 days
Cropwalker Harvest Progress Survey – Asking for a friend, does ice corn command a premium like ice wine? Please post percentage of corn harvested and county below. Harvest maps posted mid week. RT’s appreciated.
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
12 days
Was maybe abit wintery at the time, found the last row this week for @formosafarmer
@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
20 days
According to OntAg - about 99% of Ontario's soybeans have been harvested and 69% of grain corn is off as of Sunday evening - November 16th, 2025. Thank you for your participation, will poll again Friday Nov 28th for the last poll of the harvest season. Full report
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
12 days
@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
14 days
Cropwalker Harvest Progress Survey – Asking for a friend, does ice corn command a premium like ice wine? Please post percentage of corn harvested and county below. Harvest maps posted mid week. RT’s appreciated.
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
14 days
Cropwalker Harvest Progress Survey – Asking for a friend, does ice corn command a premium like ice wine? Please post percentage of corn harvested and county below. Harvest maps posted mid week. RT’s appreciated.
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
14 days
Cropwalker Harvest Progress Survey – Asking for a friend, does ice corn command a premium like ice wine? Please post percentage of corn harvested and county below. Harvest maps posted mid week. RT’s appreciated.
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@GreatLakesYEN
Great Lakes Yield Enhancement Network
15 days
Our year-end wrap up meetings are scheduled for February 18th (Michigan) and 20th (Ontario), with a very special guest... Dr. Roger Sylvester-Bradley! Register now to attend one of these full-day data deep dives into the 2025 @GreatLakesYEN:
gfo1.typeform.com
Turn data collection into an experience with Typeform. Create beautiful online forms, surveys, quizzes, and so much more. Try it for FREE.
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
15 days
Snow day here, working on 2026 and looking for ideas on soil sampling setups for ATV/UTV. What has worked for you?
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@GreatLakesYEN
Great Lakes Yield Enhancement Network
17 days
πŸ“’Registration for the 2026 Great Lakes Yield Enhancement Network is now open!πŸ“’ Join farmers and agronomists across the region in a collaborative effort to push wheat yield potential and learn from real on-farm data. Sign up today:
Tweet card summary image
greatlakesyen.com
Participate in the Great Lakes YEN project to contribute to learning more about how wheat crop grows and develops, and how yield is formed.
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@CropTechInc
Crop-Tech Consulting
18 days
Ever wonder why Triple is cheaper than MAP or DAP? In the Beyond the Basics series, Ken covers this in the hour long session all about Phosphorus and what it does in the soil and in the plant. To see all the sessions and get tickets: https://t.co/fLulEiegbh
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@rebeccahannam
Rebecca Hannam
18 days
Hey #OntAg, I'm working with @GrainFarmers on a history project. If you were involved in the OSG, OCPA or OWPMB and have memorabilia or stories, please reach out.
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@FieldwalkerAg
Jonathan Zettler πŸ‡¨πŸ‡¦
19 days
Harvesting the annual β€œseed, no seed” trial today. Added a yield monitor to the combine this fall to help verify the results. Hopefully the last year for this test. 🫣
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