On The Go Sensors In Cotton Country

Cotton growers in the MidSouth and Southeast have used GreenSeeker sensors to make variable-rate PGR applications. GreenSeeker sensors measure reflected light at wavelengths that correspond to crop vigor. An on-board computer calculates the PGR requirement based on the sensor measurements and changes the applied rate as the applicator moves through the field. University research has demonstrated savings of 40 and 33% on PGRs and harvest aids, respectively, using GreenSeeker variable-rate application. However, for sensor-based systems like GreenSeeker to be even more economical for cotton farmers, variable-rate N needs to be part of the package.

Variable-rate N applications in cotton have not been developed as rapidly as in other crops like wheat and corn. However, beginning in 2008, Cotton Incorporated named sensor technology as its precision agriculture research focus. In addition to the internal work being conducted in their core program, Cotton Inc. is coordinating university research in 13 states across cotton producing regions of the USA. As part of this program, various methods to determine cotton N requirement using optical sensors are being evaluated.

Nitrogen rates can be determined based on estimated yield potential. This approach has been used successfully in wheat and corn in several states. States evaluating this method for cotton include Louisiana, Oklahoma, South Carolina, and Texas. This method requires in-field, high-N reference areas for calibration. The South Carolina work has shown that different calibration values need to be established for different soil types.

Other work has identified a link between sensor measurements and leaf N. Researchers at Mississippi State University have established strong relationships between leaf N and sensor measurements across a range of cotton growth stages. The ability to use sensors to indirectly determine leaf N can result in accurate N rate recommendations without having to collect and analyze leaf tissue samples.

Another approach being evaluated in Tennessee uses known field history and current sensor measurements. For example, a field with historically high yield potential resulting in high sensor readings would be considered typical and N fertilizer would be applied normally based on expected yield. The same would be true for low sensor readings in a known low-yielding field. Using this approach, changes in fertilizer management will be needed only if the sensor measurements and field history don’t match. For example, a typically low-yielding field giving high sensor readings could indicate rank growth and N rates might need to be reduced.

Variable-rate N management in cotton using ground-based sensors still needs to be refined, but the potential for success is evident. Several states have not advanced past small-plot research work, but those that have taken the technology to grower fields are encouraged by the results.

Topics:

Leave a Reply

Your email address will not be published. Required fields are marked *

Growers Stories
Craige Mackenzie
GrowersAgribusiness: Efficiency Through Precision Farming
September 6, 2016
Craige MacKenzie travelled recently to St Louis, MO, to receive the award of Precision Agriculture Farmer of the Year from Read More
GrowersFarmers Find New Ways To Profit With Precision Ag
August 19, 2016
Steve Cubbage has seen that precision agriculture use has been closely tied to farmers’ ability to see a profit from Read More
Filling The Planter from Cab
GrowersPrecision Farming Act Would Give Farmers Access To Broadband Internet
July 26, 2016
Like it’s done for many other industries, the internet is improving the agricultural sector. Farmers are making more use of Read More
Philippines banana farming
GrowersInternet of Things Ushers Precision Farming In The Philippines
July 6, 2016
Who says agriculture is a low-tech enterprise? Not conglomerate Calata Corp., which has partnered with Austrian firm Pessl Instruments GmbH Read More
Trending Articles
Ian Yule, ISPA
ResearchLeading Ag Technology Researcher Appointed ISPA President
September 26, 2016
Massey University’s Professor Ian Yule, one of the world’s leading agri-tech researchers, has been voted president of the International Society Read More
Business2016 Farm Science Review: Talkin’ New Products, Education and Big Data
September 21, 2016
The Ohio State University’s Farm Science Review has become an annual rite of fall for Buckeye State growers, retailers and Read More
Mitchell Technical Institute students with drone
IntegratorsMTI Precision Ag Students Use Drone Technology
September 19, 2016
After weeks of sitting in the classroom, several Mitchell Technical Institute students were able to spend a few hours outside Read More
Robotics AGCO Fendt Guide Connect
Market ImpactReport: Ag Robots And Drones May Be A $10 Billion Market By 2022
September 7, 2016
Robots and drones have begun to quietly transform many aspects of agriculture. In fact, the IDTechEx Research report on Agricultural Read More
SDWG Bret Weisenburger
BusinessMZB Technologies, Climate FieldView Announce Data Integration for 2017 Season
September 6, 2016
MZB Technologies announces a data connectivity agreement with The Climate Corporation, a subsidiary of Monsanto Co., providing increased precision agriculture Read More
Deere R4023 cab
BusinessReport: Smart Agriculture Market Worth $19 Billion By 2021
September 6, 2016
Research and Markets has announced the addition of the “Smart Agriculture Market – With Forecast (2016-2021)” report to their offering. Read More
Latest News
BusinessFarm Bureau Insurance Services, Granular Announce Partn…
September 29, 2016
American Farm Bureau Insurance Services (AFBIS Inc.), a Managing General Agent (MGA) for Approved Insurance Providers (AIP’s), has partnered with Read More
Sentera Rise Above
BusinessRise Above Selected To Resell Sentera Solutions Through…
September 28, 2016
Sentera, LLC, a global provider of remote sensing hardware and data management solutions signs a reseller agreement with Rise Above Read More
Western Canada Wheat field
DataFarmers Edge Partners With New Holland Dealer
September 28, 2016
Farmers Edge, a global leader in precision agriculture and independent data management solutions, has partnered with Mazergroup, North America’s largest Read More
A Satshot NDVIR analysis running on an iPad.
BusinessSatshot’s Landscout IOS Now API Linked With John …
September 28, 2016
Satshot’s Landscout IOS mobile software is now connected with the John Deere Operations Center through John Deere’s API services. Landscout Read More
Ag Drone
BusinessDroneDeploy Launches Turbo Uploader
September 27, 2016
DroneDeploy today announced a new solution that addresses drone data portability challenges in remote areas that have Internet bandwidth constraints. Read More
FUSE Farm Graphic
DataAGCO Is Founding Member Of The DKE Data-Hub Initiative
September 26, 2016
AGCO Corp., a world-leading manufacturer and distributor of agricultural equipment, has announced its participation as a founding member of the DKE Read More
Ian Yule, ISPA
ResearchLeading Ag Technology Researcher Appointed ISPA Preside…
September 26, 2016
Massey University’s Professor Ian Yule, one of the world’s leading agri-tech researchers, has been voted president of the International Society Read More
BusinessADAPT Conversion Toolkit Making In Roads With Equipment…
September 22, 2016
A leading group of equipment manufacturers will soon release products that greatly enhance a grower’s ability to manage data across Read More
Business2016 Farm Science Review: Talkin’ New Products, Educati…
September 21, 2016
The Ohio State University’s Farm Science Review has become an annual rite of fall for Buckeye State growers, retailers and Read More
Farmers Edge Truck
DataFarmers Edge Awarded $6.1M Investment From Sustainable …
September 21, 2016
Farmers Edge, a global leader in precision agriculture and independent data management solutions, has announced that it will receive $6,107,563 Read More
BusinessGMO Aphids to Battle Weeds? It’s Not as Far Fetch…
September 21, 2016
No, I am not talking about optimizing aphids for a global agricultural armageddon. That would be silly. I’m talking about Read More
Young Corn Field
Best PracticesNitrogen: The Key to Reducing Greenhouse Gas Emissions
September 20, 2016
Precision ag can play a key role in reducing agriculture’s impact on greenhouse gases by limiting the nitrogen rate. Read More
W. Wade Robey, Raven
Industry NewsRaven Adds New Director Of Engineering
September 19, 2016
W. Wade Robey, Ph.D., joined Raven Applied Technology in August 2016 as Director of Engineering. In this role, he leads Read More
Mitchell Technical Institute students with drone
IntegratorsMTI Precision Ag Students Use Drone Technology
September 19, 2016
After weeks of sitting in the classroom, several Mitchell Technical Institute students were able to spend a few hours outside Read More
BusinessOPINION: Climate Corp. is the Jewel in Bayer’s Monsanto…
September 15, 2016
PERSPECTIVE: Over the next few days and weeks in the ag media space the major players will examine this latest Read More
Sugarcane India
Market ImpactPlantations International Brings Precision Farming Tech…
September 14, 2016
Hong Kong-based plantation and farm management company Plantations International has announced it is moving its contact centre from the Indian Read More
Corn close up
Start-UpsLewis & Clark Ventures Raises $20 Million For Agric…
September 13, 2016
Lewis & Clark Ventures, a venture capital firm focused on Series A and B stage investments, has announced $20 million Read More
BusinessSentera Joins Forces With Another Drone Distributor
September 13, 2016
Sentera has signed an exclusive distribution agreement with Dynamic UAV Solutions North America, LLC, a new distributor in the commercial Read More