Field Trial: Precision Application and Curve Compensation on Sprayers

Several months ago I wrote an article about curve compensation in planters and how these systems can help create more uniform stands and improved yield in fields with curves.

Another area where there is a lot of value with curve compensation is product application. Sprayers are getting larger, often coming equipped with 120- or 132-foot booms, which can cause drastic differences in application rates on the inside and outside edges of a curve. This can result in weed, disease, or nutrient problems as product is overapplied on the inside of the boom and underapplied on the outside.

There are several great systems that have been on the market for a few years with individual nozzle control, such as the CapstanAG system, Raven Hawkeye, and John Deere’s new ExactApply system. The ExactApply system not only features individual nozzle control which enables curve compensation, but also has technology that allows for pulse-width modulation at 30 hertz, a turret featuring six nozzles with automatic A/B nozzle switching, and improved monitoring of nozzles for issues such as flow rates and blockage. This monitoring system is visible on the in-cab display and through lights that are built into the ExactApply nozzle body.

I had the opportunity to work with the ExactApply technology this season and conduct a simple field trial illustrating the value of the new system. I worked with a team of Product Specialists at RDO Equipment Co. to conduct the field trial at a precision agriculture field day they held for customers. We made an oval track with a 180-degree turn on each end to put the curve compensation system to the test.

The field trial consisted of two treatments, curve compensation on and off, and evaluating the effect of a curve on spray coverage across the boom. We expected that, with curve compensation off, product would be overapplied on the inside of the curve and underapplied on the outside. With the system on, the application rate would then be consistent across the whole boom. To measure this, we put water-sensitive paper across the length of the spray pass and then calculated the percent spray coverage on each sheet.

The results showed that the new system works as advertised, and that with curve compensation off there was a statistically significant difference between the inside and outside edges of the boom. With the feature turned on, there was no statistical difference, meaning that the spray rate was maintained across the length of the boom in the curve.

Whether the system used is John Deere’s ExactApply, CapstanAg’s Pinpoint II, Raven Hawkeye, or another option on the market, there are several benefits for a customer. One of the biggest benefits is with the 4Rs of nutrient or product application: applying the right product in the right place, at the right time, and at the right rate. These systems ensure that product is delivered at the correct rate where it’s needed, enabling practices such as variable rate, and shutting off nozzles as you cross headlands and interior and exterior boundaries. This saves on product application costs and could help with issues such as weed, insect, or disease resistance.

To conclude the field trial, we put together a video for customers who could not attend the event. In today’s digital age it’s not only important to work with and show the value of the latest technology, but to use new ways to communicate this information to others.

Watch the field trial video below:

Leave a Reply

Systems Management Stories
John Deere Operations Center
Data ManagementMaximize the John Deere Operations Center for Your Customers
August 16, 2018
Today’s farming operation looks different than it did 20, 10, even just a few years ago. Technology continues to shape Read More
Harvest
Data ManagementAre You Ready for This Year’s Digital Harvest?
August 15, 2018
As the days in the Northern Hemisphere slowly get shorter, they are getting longer in the Southern Hemisphere and everywhere Read More
Data Science tablet
Data ManagementMicrosoft, Agile Networks Detail Central Ohio Broadband Expansion Project
August 9, 2018
Agile Networks, a leading provider of telecommunications solutions, and Microsoft Corp. has announced a new agreement to bring broadband internet Read More
Sentera-Gimbaled-Quad-Sensor
Sensors/IoTSentera Gimbaled Quad Sensor Optimizes Crop Health Data Capture
August 7, 2018
Sentera’s Quad sensor is now available in an integrated gimbal-stabilized package for DJI Inspire and Matrice drones. Featuring four fully-customizable Read More
Trending Articles
Geosys
Industry NewsUrtheCast to Acquire Geosys from Land O’Lakes in $20 Million Deal
August 15, 2018
UrtheCast Corp. and Land O’Lakes, Inc. today announced they have entered a binding term sheet for the purchase of Geosys Read More
1 On 1 With Paul Schrimpf: Simplot’s Allan Fetters
PrecisionAg InstituteOne on One With Simplot’s Allan Fetters
August 8, 2018
Allan Fetters of PrecisionAg Institute partner Simplot Grower Solutions talks about techology trends and key learnings from the recent InfoAg Conference in this exclusive interview with PrecisionAg's Paul Schrimpf. Read More
PrecisionAg InstitutePrecisionAg Institute Whitepaper Library
August 1, 2018
Welcome to the PrecisionAg Institute Whitepaper library! Here you will find free whitepapers and case studies from the PrecisionAg Institute Partners Read More
AmericasIntegrity Ag Group: People Over Precision
July 30, 2018
It’s not every day that this reporter walks into the office of a precision ag dealer, sits across from the Read More
farmer-tractor-tablet
Systems ManagementWhat is Digital Farming — Really?
July 24, 2018
The agricultural community has spent several years synthesizing an operational description for digital farming. In several cases, there have also Read More
Data ManagementInfoAg News: Farmobile Launches DataEngine, Streamlines DataStore Buyer Process
July 17, 2018
Busy times these days out in Leawood, KS, for ag data startup Farmobile, as they continue to – pardon the Read More
Latest News
John Deere Operations Center
Data ManagementMaximize the John Deere Operations Center for Your Cust…
August 16, 2018
Today’s farming operation looks different than it did 20, 10, even just a few years ago. Technology continues to shape Read More
Service ProvidersNew Ag Retail Survey Identifies Key Business Challenges
August 16, 2018
From commodity prices and competition for business to future-proofing the operation, ag retailers shared their challenges and concerns in a recent survey conducted by Proagrica. Read More
WinField’s Joel Wipperfurth On Empowering Data-Driven Decisions
InfoAg ConferenceOne on One with Joel Wipperfurth, Winfield United
August 15, 2018
Winfield United's Joel Wipperfurth discusses ag technology trends and topics during last month’s InfoAg Conference. Read More
Geosys
Industry NewsUrtheCast to Acquire Geosys from Land O’Lakes in …
August 15, 2018
UrtheCast Corp. and Land O’Lakes, Inc. today announced they have entered a binding term sheet for the purchase of Geosys Read More
Harvest
Data ManagementAre You Ready for This Year’s Digital Harvest?
August 15, 2018
As the days in the Northern Hemisphere slowly get shorter, they are getting longer in the Southern Hemisphere and everywhere Read More
Wheelman-Pro
Industry NewsAgJunction Expands Automatic Steering Market to Smaller…
August 14, 2018
AgJunction, the autosteering company, has introduced Wheelman, a new way for farmers to automatically and accurately steer farm equipment at Read More
Drip-irrigation
Precision IrrigationFertigation as a Precision Agriculture Tool
August 14, 2018
Fertigation is a fertilizer application method in which dissolved fertilizers are delivered to the crop through the irrigation system. This Read More
Events5 Reasons You Should Attend Growing Innovations
August 13, 2018
The specialty crop market is wracked by unprecedented change: labor scarcity, water shortages, pressing demands for increased quality and transparency Read More
Data Science tablet
Data ManagementMicrosoft, Agile Networks Detail Central Ohio Broadband…
August 9, 2018
Agile Networks, a leading provider of telecommunications solutions, and Microsoft Corp. has announced a new agreement to bring broadband internet Read More
AmericasIvy Tech Opens Center of Excellence to Train Tomorrow&#…
August 9, 2018
Students interested in careers in precision agriculture equipment technology or diesel technology now have the opportunity to pursue certificates, technical Read More
1 On 1 With Paul Schrimpf: Simplot’s Allan Fetters
PrecisionAg InstituteOne on One With Simplot’s Allan Fetters
August 8, 2018
Allan Fetters of PrecisionAg Institute partner Simplot Grower Solutions talks about techology trends and key learnings from the recent InfoAg Conference in this exclusive interview with PrecisionAg's Paul Schrimpf. Read More
Corn field sunset
Industry NewsTrimble RTX Correction Technology Now Delivers Two Cent…
August 7, 2018
Trimble has announced that its Trimble RTX GNSS corrections technology can now achieve horizontal accuracies of better than two centimeters. Read More
Sentera-Gimbaled-Quad-Sensor
Sensors/IoTSentera Gimbaled Quad Sensor Optimizes Crop Health Data…
August 7, 2018
Sentera’s Quad sensor is now available in an integrated gimbal-stabilized package for DJI Inspire and Matrice drones. Featuring four fully-customizable Read More
BigDataSmall2
Data ManagementPrecision Agriculture: A Smaller Approach to Big Data
August 7, 2018
Big data is one of the most buzzed-about concepts in our industry. Rarely do we read a newsletter, attend a Read More
Grower-Retailer
Industry NewsAgworld, K-coe Isom Form Strategic Partnership
August 6, 2018
Agworld and K-coe Isom have announced a strategic partnership that will see them integrating business advisory and technology to deliver Read More
Industry NewsAgEagle Acquires Agribotix
August 6, 2018
AgEagle Aerial Systems has signed an agreement to acquire substantially all of the assets of Agribotix, a Boulder, CO-based drone-enabled Read More
Digital-Farming
Systems ManagementImplementing Digital Farming’s Five Major Needs
August 2, 2018
Building a house starts with a plan and then a foundation; it does not start with doors and windows. From Read More
PrecisionAg InstitutePrecisionAg Institute Whitepaper Library
August 1, 2018
Welcome to the PrecisionAg Institute Whitepaper library! Here you will find free whitepapers and case studies from the PrecisionAg Institute Partners Read More