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Analyzing Field 7
V6 · June 14

Field 7 is at V6 corn. Should I side-dress nitrogen today or wait?

Field 7 · Boone County, IA

Hold 48 hours. Soil moisture at 38% field capacity — application now risks surface loss. A 0.8" rain event is 74% probable Thursday 6–10 AM. Side-dress Friday morning: soil will be firm enough to carry equipment, moisture will move product down to the root zone. At V6, your uptake window peaks in 9 days. Friday puts you ahead of that curve.

What rate? I was planning 80 lbs/ac anhydrous.

NDVI + yield history

Your NDVI variance across Field 7 suggests a 12-acre low-vigor zone in the NW corner — likely compaction from last fall's harvest pass. Blanket 80 lbs/ac will over-apply there. Recommend 80 lbs/ac on 91 acres, 55 lbs/ac on the 12-acre zone. Saves ~300 lbs product, reduces leaching risk in that pocket.

Ask about Field 7…|
NDVI · Field 7Sentinel-2 · Jun 12
103 ac
Low vigor
Moderate
Good
High
Soil moisture · 0–12"
38% FC
Jun 35791113
72-hr forecastThu 74% precip
6 AM8%61°
9 AM12%64°
12 PM20%68°
3 PM🌦35%70°
6 PM🌧74%67°
9 PM🌧68%63°
12 AM🌦40%60°
3 AM18%58°
Every crop. Every scale.

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02Vineyard · Paso Robles, CA · Cabernet Sauvignon

My Brix is at 19.2 on Block C. Do I have 10 days before harvest?

Yield

Marginal. Your 10-day accumulation model shows 148 GDD remaining to reach 24.5 Brix at your target harvest window. The issue is a heat spike forecast Sep 18–20 — 3 consecutive days above 98°F will accelerate maturation by 4–6 days. If you're targeting balance over maximum Brix, your window opens Sep 16 at first light. Block C's east-facing rows will be 0.3–0.5 Brix behind the west slope; harvest sequentially.

GDD accumulation · Block C
19.2
Current Brix
24.5
Target Brix
4d
Days to heat spike
Sep 16
Revised window
Current Brix
Target Brix
Days to heat spike
Revised window
03Agronomist · Central Valley · Multi-farm portfolio

I'm consulting 14 farms in the basin. Which 3 need attention this week?

Yield

Priority 1: Hendricks Farm (Section 12) — sudden NDVI drop of 0.18 in 6 days, consistent with sudden death syndrome onset. Scout roots before Thursday rain. Priority 2: Torres Ranch — soil moisture at 18% FC across 340 acres, critical stress threshold. Irrigation trigger was missed Tuesday. Priority 3: Blackwood Fields — aphid pressure probability 83% based on degree-day model; beneficial insect counts from last week's trap data are below economic threshold. The remaining 11 farms are tracking within normal variance.

Portfolio scan · 14 farms
3 / 14
Farms flagged
−0.18
NDVI drop · Hendricks
−20%
Torres FC deficit
83%
Aphid probability
Farms flagged
NDVI drop · Hendricks
Torres FC deficit
Aphid probability
12.4M
Acres analyzed
Across corn belt, high plains, and Pacific Coast vineyards
97.2%
Recommendation accuracy
Validated against end-of-season yield records
340ms
Avg. response time
Including satellite pull and soil model recalculation
$47
Avg. input savings/acre
Nitrogen, water, and chemical optimization combined
"

I manage 18 client farms. Yield cut my scouting time in half — it flags the three fields that need me today instead of making me check all 18.

Older male agronomist with weathered face in field setting wearing a cap
Marcus Thielen
Independent agronomist · 11,200 ac under management
"

The nitrogen timing call on our V6 corn saved us roughly $18,000 in product last season. The rain probability was dead on.

Middle-aged woman farmer in overalls standing in a corn field at dawn
Dena Kowalczyk
Corn/soy operator · 2,800 ac · Boone County, IA
"

Veraison is chaos. Having Yield track every block's Brix trajectory against the heat forecast meant I picked Block C four days earlier than planned — perfect sugar-acid balance.

Hispanic male vineyard manager in his 40s standing among grape vines
Rafael Ibáñez
Vineyard manager · 340 ac · Paso Robles, CA
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