Sentinel Ag

End the guesswork - let your crop guide your nitrogen plan.

[Sentinel Ag @Sentinel_Ag]

The N-Time™ app has arrived.

Monitor nitrogen trends. Respond to notifications. Schedule fertigation events. Log nitrogen applications.

All with a few taps on your phone or tablet.

App Store: https://t.co/k2h3RZo0Jh.
Google Play: https://t.co/7qgtWwS0pC

[Sentinel Ag @Sentinel_Ag]

Every field has a point where more nitrogen stops paying. On 903 Big in 2026 we measured it at about 108 lb/ac. Past that, extra N bought almost no yield. Knowing the number lets you hold the rate with confidence.

#SentinelAg #Harvest26 #InSeasonNitrogen

[Sentinel Ag @Sentinel_Ag]

One cornfield, 2026, read two ways. Left: where the bushels came from. Right: crop health in July. Neither is uniform, and an average can't see it. That is where the right nitrogen rate starts.

#SentinelAg #Harvest26 #PrecisionAg

[Sentinel Ag @Sentinel_Ag]

Fall tillage gets you a quick nitrogen burst. Strip-till and no-till release nitrogen in-season, when corn needs it most.

Pay now or pay later. @BobGunzy breaks it down:
https://t.co/ZcPpxXos2f

#FallTillage #StripTill #Nitrogen #SoilHealth #PrecisionAg

[Sentinel Ag @Sentinel_Ag]

Field Recon |

We’re running a dryland cotton nitrogen trial in Mississippi. Sentinel and grower sides look nearly identical on boll counts, plant height, and internode spacing, but Sentinel is carrying about 20 lbs less N. Now we wait for results. #SentinelAg #Plant26 #Cotton

[Sentinel Ag @Sentinel_Ag]

It was dry across parts of NE and the Dakotas. When the rain doesn't come, the crop leaves N in the soil, and a dry winter keeps it there.

Before you set 2027 rates, find out what's left. https://t.co/ti0kLmJgkp
#Drought #Nitrogen #Agronomy

[Sentinel Ag @Sentinel_Ag]

We’ve been watching this field all season. With 30, 60 and 90 lb N/ac base rates, now we’re getting close to seeing what harvest tells us. #SentinelAg #FieldRecon #NitrogenManagement #PrecisionAg #Corn #Agronomy #NitrogenUseEfficiency

[Sentinel Ag @Sentinel_Ag]

Field Recon is back. Evaluating All-N Advisor vs. standard practice in dryland trials. Colten explains deep denting and hot temps' impact on test weight. Harvest will reveal all.
#FieldRecon #NitrogenEfficiency #CornHarvest

[Sentinel Ag @Sentinel_Ag]

Your corn residue isn't trash — it's a resource. Know what's in it, manage it right. @BobGunzy breaks down the numbers. https://t.co/WcwtEqD1tG

#PrecisionAg #NitrogenManagement #CornHarvest #Agronomy

[Sentinel Ag @Sentinel_Ag]

Silage data can reveal where extra N is making it into the plant. Know where your N is going before you spend more.
Read: https://t.co/uUe9lncyhB
@BobGunzy

#AgronomyTips #SentinelAg #SilageData #NitrogenManagement

[Sentinel Ag @Sentinel_Ag]

Your stover is a scorecard. Leaves hold the most N (1.0–1.8%), stalks run lower, and the Corn Stalk Nitrate Test tells you if your crop was a luxury feeder. @BobGunzy breaks it down.
https://t.co/WcwtEqD1tG

#PrecisionAg #NitrogenManagement #CornHarvest #Agronomy

[Sentinel Ag @Sentinel_Ag]

We're at Husker Harvest Days. Scan the QR code to reach our team directly. Catch us Tuesday 9/15 at Balz Sports Bar on State St. in Grand Island, 4:30–5:00 PM. #HuskerHarvestDays #PrecisionAg #SentinelAg

[Sentinel Ag @Sentinel_Ag]

@OrvinBontrager Top 24” had 55-76 lb-N/ac in spring samples. SOM 4%. Irrigation nitrates at 36.9 ppm. Overall credits add to between 184 and 227.

[Sentinel Ag @Sentinel_Ag]

Field Recon | NREC Farm

Jack Tickner checks the 90-lb sector at R6. About a leaf or two separate the firing from the ear, with little visible difference between the 30, 60, and 90-lb rates.

#SentinelAg #FieldRecon #InSeasonNitrogen #PrecisionAg

[Sentinel Ag @Sentinel_Ag]

We'll be at Husker Harvest Days.
Find us at the ATP200 & TAPS booth or meet up Tuesday 9/15 at Balz Sports Bar, 4:30-5:00 PM. Let's talk.

#HuskerHarvestDays #PrecisionAg #NitrogenManagement #SentinelAg

[Sentinel Ag @Sentinel_Ag]

Silage harvest tells you more than yield. Whole-plant data shows how much N the crop removed and where N availability varies. @BobGunzy explains: https://t.co/uUe9lnc0s3

#NitrogenManagement #SilageAnalysis #SentinelAg #CornProduction

[Sentinel Ag @Sentinel_Ag]

Field Recon | NREC Facility

30-lb-N Lower Leaf firing as the field dries down?
Jack Tickner checks the 30-lb sector. Brown leaves are still two leaves below the ear leaf as harvest approaches.

#SentinelAg #FieldRecon #InSeasonNitrogen #PrecisionAg

[Sentinel Ag @Sentinel_Ag]

Increased nitrogen at grain fill boosts protein, not yield, costing you more. Know your corn's needs at R5.
Read: https://t.co/G4NL9qgDRr @Bob-Gunzy #CropManagement #AgronomyTips

[Sentinel Ag @Sentinel_Ag]

More N at grain fill won't buy you more bushels. Corn will luxury-feed and stack it into protein instead. Know your hybrid's remobilization traits before you over-apply. @BobGunzy explains: https://t.co/sOgv3EeFqB

#NitrogenManagement #CornProduction #SentinelAg

[Sentinel Ag @Sentinel_Ag]

"The crop itself is the test."

Sentinel reads what the plant is integrating in real-time. That's the whole point. Read Jackson's August Founder's Note here: https://t.co/JnvC3hpKho

#PrecisionAg #NitrogenManagement #SentinelAg #Corn2026

[Sentinel Ag @Sentinel_Ag]

Your corn is remobilizing nutrients into grain at R5. Late-season heat and disease can impact seed mass. Learn more from @BobGunzy: https://t.co/SHkBQMB4ds #GrainFill #SentinelAg