SmartScript™ Weeds

FieldInsights

Product Specification

Product Name:SmartScript™ Weeds

Product SKU:71310-02

Revision Date:2025-03-12

Product Overview

Description

SmartScript™ Weeds detects and characterizes weeds delivering a herbicide spray prescription and field report within 24 hours of image data capture. Additionally, Stand Count with Uniformity is provided at sampled locations across a field to deliver a Spot Scout layer that measures early season crop performance including measurements of stand count and related uniformity measurements. Specific deliverables for stand counts are crop and growth stage dependent. This product utilizes directly georeferenced maps derived from high-resolution RGB imagery captured across an entire field.

Recommended Use Cases

Crop Stress
Weed Pressure
Herbicide Application
Targeted Spray Application
Plant Population
Seedling Emergence
Seed Vigor
Plant Uniformity
Stand Quality
Plant Growth
Plant Size
Canopy Development
Yield Potential
Area of Interest Variability

Supported Crops

Soybean
Corn/Maize

Deliverables Summary

SmartScript™ Targeted Spray Prescription
Spot Scout Stand Count with Uniformity

Requirements

General Requirements

Requires FieldAgent Enterprise License (61006-##)
Requires Field Scale Project Setup (71300-00)
All "Cropping System Requirements" met
Optional: All "Targeted Spray Application Requrements" met
Imagery collected following all "Data Capture Requirements" via Flight Services SmartScript™ Weeds Data Capture (71007-05)
Imagery uploaded to the FieldAgent Field created by Field Scale Project Setup (71300-00)
Order Analytics submitted for SmartScript™ Weeds for uploaded Survey

Cropping System Requirements

Row Spacing greater than or equal to 14 inches (36 cm)

Target Spray Application Requirements

Spray Equipment Requirements

Nozzle System

One Of:

John Deere ExactApply™ with Individual Nozzle Control
Raven Hawkeye® 1 or 2 with Individual Nozzle Control
Case IH AIM Command FLEX™ II with Individual Nozzle Control
Capstan Pinpoint III

Monitor System

One Of:

John Deere Gen 4 or 5 CommandCenter™
Raven Viper® 4+

Tank System

One Of:

Single Tank
Dual Tank

Spray Application Requirements

A single tank systems cannot simultaneously spray contact herbicide in a targeted pattern and residual herbicide in a broadcast pattern. If residual herbicide is part of the field's weed control program and a single tank sprayer is used, the sprayer will need to make one pass for broadcast residual and another pass for targeted spray contact herbicides.

Spray Equipment Calibration Requirements

The sprayer and drone have different GPS systems. In order to deliver SmartScript™ Weeds (71310-02) aligned to the sprayers GPS reference system, the offset between the two systems must be measured and recorded.

Completion of Flight Services Sprayer GPS System Calibration (71007-06) at least 2 weeks prior to first Planned Spray Application Date

If Flight Services Sprayer GPS System Calibration (71007-06) is not completed, then a zero offset between Sprayer and Drone GPS will be used

As-Applied Layer Requirements

After execution of targeted spray application, the as-applied layer will be provided by Customer to Sentera.

...

Data Capture Requirements

Imagery Type

RGB (Directly Georeferenced)

Ground Sample Distance

Less than 0.15cm

Timing by Crop

Crop	Timing/Growth Stage	Plant Size
Soybean	V1-R2; Prior to Post-Emergence Contact Herbicide Spray Application	Crop height less than 9 inch (20 cm); Row closure less than 50%
Corn/Maize	V1-V4; Prior to Post-Emergence Contact Herbicide Spray Application	Crop height less than 9 inch (20 cm); Row closure less than 50%
Cotton	-	-
Other	-	-

Flight Specifications

✥ Front-lap 50%; Side-lap as specified in table
✥✥ Speed listed is maximum speed and may vary based on environmental and/or field conditions
Sensor	Altitude	Speed	Overlap	Flight Direction	Buffer	Heading	Gimbal Pitch	Terrain Informed
65R + DGR, Fixed Mount	40ft (12m)	8mph (3.5m/s)	30%	Perpendicular to rows	-40ft (-12m)	Forward	-90° (Nadir)	On
WeedScout Phase 2	40ft (12m)	15mph (6.5m/s)	15%	Perpendicular to rows	-40ft (-12m)	Forward	-90° (Nadir)	On
WeedScout Phase 3	100ft (30m)	18mph (8m/s)	10%	Perpendicular to rows	-40ft (-12m)	Forward	-90° (Nadir)	On

Environmental Conditions

Lighting

Imagery should be captured between the time of 2 hours after sunrise and 2 hours before sunset. Consistent lighting conditions required for best results, including avoidance of hard shadows cast over the field which cause bright spots and dark spots in the dataset.

Wind

Wind conditions should be within the specified limits of the aircraft or system being used to carry the imaging sensor.

Precipitation

There should be no active precipitation during imagery capture.

Deliverables

Analytics

Analytic	Imagery	RGB (Directly Georeferenced)
SmartScript™ Targeted Spray Prescription (84010-01)
Spot Scout Stand Count with Uniformity (84001-01)

Analytic by Crop

Analytic	Soybean	Corn/Maize	Cotton	Other
SmartScript™ Targeted Spray Prescription (84010-01)
Spot Scout Stand Count with Uniformity (84001-01)

SmartScript™ Targeted Spray Prescription (84010-01)

Description

A layer where the location of individual weeds or groups of weeds are bounded with zones appropriately sized for intended spray equipment and can be used as a prescription to deliver a targeted spray herbicide application. Weed detection is designed for weeds with height greater than or equal to 0.25 inch (0.6 cm).

Deliverable List

Deliverable	Format	Description
Targeted Spray Prescription	GeoTiff	Targeted spray herbicide application prescription file and visualiztion layer. The ZIP file can be unzipped and the four files (.shp, .shx, .dbf, .prj) can be copied to the sprayer monitor to execute the prescription. The GeoTiff file can be viewed in FieldAgent.
Side-by-Side Targeted Spray Prescription	GeoTiff	Side-by-side targeted spray herbicide application prescription file and visualiztion layer, where one half of the field is assigned a targeted spray prescription and the other half of the field is assigned a broadcast prescription. This deliverable is intended for use in field trials to evaluate weed control efficacy of SmartScript™ Weeds targeted spray herbicide application compared to broadcast herbicide application. The ZIP file can be unzipped and the four files (.shp, .shx, .dbf, .prj) can be copied to the sprayer monitor to execute the prescription. The GeoTiff file can be viewed in FieldAgent.

Data Attributes

Targeted Spray Prescription

Attribute	Description	Units Metric	Units Imperial
Rate	The prescribed herbicide rate. For field areas with weeds detected, the rate is the Customer provided rate (or the default rate of 15 gallons per acre if not provided by Customer). For field areas without weeds detected, the rate is set to 0 gallons per acre.	Liters / Hectare	Gallons / Acre

Side-by-Side Targeted Spray Prescription

Attribute	Description	Units Metric	Units Imperial
Rate	The prescribed herbicide rate. For field areas assigned to the targeted spray prescription where weeds are detected or field areas assigned to the broadcast prescription, the rate is the Customer provided rate (or the default rate of 15 gallons per acre if not provided by Customer). For field areas assigned to the targeted spray prescription where weeds are not detected, the rate is set to 0 gallons per acre.	Liters / Hectare	Gallons / Acre

Spot Scout Stand Count with Uniformity (84001-01)

Description

Provides either an absolute plant count or relative plant count using percent row-fill based on planting population as well as related uniformity statistics including plant population, gap analysis, seed spacing, singulation/skips/multiples, canopy cover, and weed cover.

Deliverable List

* Delivered only in some cases
Deliverable	Format	Description
Stand Count with Uniformity - Individual*	Shapefile, GeoJSON, CSV	Summary statistics for representative field locations
Stand Count with Uniformity - Rowfill*	Shapefile, GeoJSON, CSV	Summary statistics for representative field locations
Stand Count Heatmap	GeoTiff	Interpolated map of summary statistics across representative field locations

Data Attributes

Stand Count with Uniformity - Individual

Attribute	Description	Units Metric	Units Imperial
Seeding Rate – User Provided	Seeding rate (user provided input)	count per ha	count per acre
Plant Density	Stand count of the plot measured in plants per acre/hectare	count per ha	count per acre
Emergence	Emergence percentage	percent	percent
Seed Spacing – Expected	Seed Spacing expected based on the user inputs of seeding rate and row spacing	cm	in
Seed Spacing – Median	Seed spacing median. Metric is calculated from spacing of emerged plants (If a seeding rate is not provided, the median seed spacing will be substituted for calculations requiring this input)	cm	in
Seed Spacing – Average	Seed spacing average. Metric is calculated from spacing of emerged plants	cm	in
Seed Spacing – Std. Dev.	Seed spacing standard deviation. Metric is calculated from spacing of emerged plants	cm	in
Seed Spacing – CoV	Seed spacing coefficient of variation. Metric is calculated from spacing of emerged plants	unitless	unitless
Singulation	Estimated percentage of singulation. Singles are plants that are > 0.5x and < 1.75x the expected seed spacing away from any other plant	percent	percent
Skips	Estimated percentage of skips. Skips are gaps between plants that are > 1.75x and < 5x the expected seed spacing	percent	percent
Multiples	Estimated percentage of multiples. Multiples are plants that are closer than 0.5x the expected seed spacing to another plant	percent	percent
Gaps > 5x Seed Spacing	Estimated percentage of gaps that are more than 5x the expected seed spacing	percent	percent
Plant Surface Area – Median	Plant surface area median	cm^2	in^2
Plant Surface Area – Average	Plant surface area average	cm^2	in^2
Plant Surface Area – Std. Dev.	Plant surface area standard deviation	cm^2	in^2
Plant Surface Area – CoV	Plant surface area coefficient of variation	unitless	unitless
Plant Width – Median	Plant width median	cm	in
Plant Width – Average	Plant width average	cm	in
Plant Width – Std. Dev.	Plant width standard deviation	cm	in
Plant Width – CoV	Plant width coefficient of variation	unitless	unitless
Plants per 10 Meters	Total plants divided by total linear length of rows in meters multiplied by 10	count per 10 m	–
Crop Canopy Cover	Percent of the plot covered by vegetation on the row	percent	percent
Total Vegetation Cover	Percent of the plot covered by all vegetation	percent	percent
Weed Cover	Vegetation between rows ("Total Vegetation Cover" - "Crop Canopy Cover")	percent	percent

Stand Count with Uniformity - Rowfill

Attribute	Description	Units Metric	Units Imperial
Seeding Rate – User Provided	Seeding rate (user provided input)	count per ha	count per acre
Plant Density	Stand count of the plot measured in plants per acre/hectare	count per ha	count per acre
Emergence	Emergence percentage	percent	percent
Rowfill	Percent of the row intersecting vegetation only	percent	percent
Gaps > 5x Seed Spacing	Estimated percentage of gaps that are more than 5x the expected seed spacing	percent	percent
Row Width – Median	Row width median	cm	in
Row Width – Average	Row width average	cm	in
Row Width – Std. Dev.	Row width standard deviation	cm	in
Row Width – CoV	Row width coefficient of variation	unitless	unitless
Plants per 10 Meters	Total plants divided by total linear length of rows in meters multiplied by 10	count per 10 m	–
Crop Canopy Cover	Percent of the plot covered by vegetation on the row	percent	percent
Crop Canopy Closure	Percent of the canopy closure (only considers areas where crop is present)	percent	percent
Total Vegetation Cover	Percent of the plot covered by all vegetation	percent	percent
Weed Cover	Vegetation between rows ("Total Vegetation Cover" - "Crop Canopy Cover")	percent	percent