Electrostatic Spraying Grows in South American Agriculture

Sprayer-Brazil
Electrostatic spraying of crops is gaining momentum in South American countries such as Brazil.

Electrostatic spraying of crops continues to become more popular in South America. This technique consists of inducing a static electric charge in each emitted drop, which causes it to be attracted to the plant that has a neutral charge. The air jet of the spray added to the high energy charge of the drops causes them to reach the plant very quickly, even before being volatilized. In addition, the fact that all drops are with electric charges of the same signal causes a repulsion between them. With this, it is possible to reach the plants in a more uniform way, even in more hidden regions.

In practice, this means higher spraying efficiency, savings in the use of pesticides and, consequently, greater efficiency in the application service, since the need for tank refueling is lower. In addition, by reducing the amount of pesticides used, the technology brings benefits to the environment.

Electrostatic spraying will typically produce fine drops with a diameter between 50 and 120 microns. Here are a few common questions related to drop size:

Application-nozzles
Application nozzles on equipment featuring an electrostatic spraying system.

How important is the diameter of the drop?
Let’s compare two drop sizes: 220 microns and 80 microns. With the volume of a drop of 220 microns, we can make 21 drops of 80 microns. With 21 drops of 80 microns, you can cover 2.75 times more area than with a drop of 220 microns. In 1 liter of pesticide, we can get 180 million drops with a diameter of 220 microns or 3.8 billion drops with 80 microns, approximately 22 times more droplets generated with a smaller diameter, allowing the product to reach the target in more places. If we were to spray a flat area with only 1 liter of water, covering 100% of that area, when using the 220 microns, we would cover an area of 6.8m2 and with drops of 80 microns, we would cover 18.7m2. In this way, we almost have three times more coverage with fine droplets.

Why can’t we work with fine drops in conventional application?
Fine drops evaporate, are easily carried by the wind, suffer from thermal inversion, among other factors. Spray drift is probably the biggest concern. Studies show that up to 75% of conventional spraying is lost by drift or to the ground.

Why can we work with fine droplets in an electrostatic application?
Fine droplets with electric charge speed toward the target, which reduces evaporation loss. The force of attraction is so great that it can even overcome the turbulence of high winds.

Assembled-System
Fully assembled electrostatic spraying system.

Why is electrostatic spray coverage more uniform than conventional applications?
All drops are loaded with the loading table. Remembering that bodies loaded with the same charge repel each other, we can have drops that do not clash during their course to the target, causing drops to land side by side, instead of drop over drop as with conventional applications. Also, we must not forget that charged drops have so much force of attraction that even after they pass through a leaf or fruit, they are able to return and deposit on the back of the target.

One company, SPE, that offers electrostatic spraying systems in Brazil and has been working for three years with the technology. SPE has already installed thousands of these systems in South America, including many in Mato Grosso this past season. I learned about the technique last year, when we evaluated it after one of my clients had it installed in two John Deere 4630 sprayers. The cost is around R$ 1000 (US $ 330) per nozzle. We are applying with a volume of 30 liters per hectare product with the cone empty nozzle, where we had used 70 liters per hectare. And even reducing the volume of product we continue with good quality of application.

For more information, visit www.monagriap.com or www.eletrostatico.com.br.

Leave a Reply

Americas Stories
AmericasNutrien Ag Solutions Brand, New Digital Platform Launched
July 9, 2018
Nutrien (formerly Crop Production Services) has officially rebranded its retail business to Nutrien Ag Solutions, aligning the company’s retail operations Read More
AmericasRaven Name to Grace New South Dakota State University Facility
June 27, 2018
According to a press release issued by the company, Raven Industries was recognized today in the naming of South Dakota Read More
AmericasMFA Precision Head Talks Precision Ag, Cover Crops at 2018 4R Summit
June 18, 2018
Although implicit to anyone that spends a good chunk of their career in agriculture, the link between advanced precision technology Read More
David-Perry-featured-image
AmericasIndigo Touts ‘New Approach to Agricultural R&D’
June 13, 2018
Indigo, the Boston-based microbial crop technology startup that has raised more than $400 million, announced it is expanding its research Read More
Trending Articles
ISPA-Yoshua-Bengio
EventsHighlights from the 14th International Conference on Precision Agriculture
July 9, 2018
The 14th International Conference on Precision Agriculture (ICPA) presented by the International Society of Precision Agriculture (ISPA) was held in Montreal, Read More
Topcon X30 Console in cab
EventsAssociation Seeks Definitive Definition of “Precision Agriculture” — What’s Your Vote?
July 2, 2018
More than two-dozen definitions of precision agriculture have been identified through the years — but which is the best and Read More
AmericasRaven Name to Grace New South Dakota State University Facility
June 27, 2018
According to a press release issued by the company, Raven Industries was recognized today in the naming of South Dakota Read More
dropcopter
DronesNew York Apple Orchard Claims World First in Pollination by Drone
June 18, 2018
Beak & Skiff Apple Orchard in LaFayette, NY, is the first orchard in the world to use drones to pollinate Read More
JDandPessl
Sensors/IoTJohn Deere, Pessl Instruments Team Up to Create Opportunities
June 18, 2018
John Deere is best known for its line of tractors, combines, sprayers, and implements. However, in an effort to help Read More
Matt-Waits-featured
Decision Support SoftwareSST’s Matt Waits: Innovative Data Solutions Key to Transforming Global Agriculture
May 31, 2018
Proagrica, part of RELX Group, earlier this year acquired U.S.-based precision agriculture solutions company, SST Software, in a move set Read More
Latest News
Industry NewsFarmobile Acquires Prime Meridian, Taps Cubbage as New …
July 13, 2018
Farmobile today announced an agreement to acquire the assets of Prime Meridian, a precision agriculture data management company based in Read More
group-photo
DronesPrecision Agriculture Takes Flight at North Carolina St…
July 13, 2018
Take a walk into the Suggs Laboratory for Precision Agriculture and Machine Systems and it’s hard not to be impressed, Read More
Skeketee-IC-Weeder
DronesAutomated Weeders Have Arrived in Vegetable Fields
July 12, 2018
The vegetable production areas of the Central Coast of California have lifted vegetable cultivation to a high art, writes Richard Read More
AgJunction, InfoAg 2014, Autosteer, GPS
Industry NewsAgJunction Settles with Raven in Patent Infringement Su…
July 12, 2018
AgJunction Inc., a leader in advanced guidance and autosteering, has settled a patent infringement lawsuit it filed against Raven Industries, Read More
Retailer-Grower-tablet
Business ManagementTaking Measure of the Precision Agriculture Program: 6 …
July 12, 2018
In the overall agriculture market, the rhetoric surrounding emerging technology over the past half-decade has been nothing short of breathless. Read More
raven-slingshot-job-generator-job-sync-1
Industry NewsNew Raven Slingshot Advancements Will Help Save Time, R…
July 11, 2018
Raven Industries, Inc. has announced several new services available on the Slingshot and Viper 4 platforms: Job Generator and Job Read More
Onsite-logo
Industry NewsAgIntegrated Acquires Exclusive Licence to Satshot’s Im…
July 11, 2018
AgIntegrated, Inc. (AGI), a leader in precision ag data integration and software development, and Satshot, a leader and pioneer in Read More
Australian Harvest
Australia/New ZealandAustralian Agritech Plants Blockchain for Efficiency
July 11, 2018
“Agritech” at one time would have meant new equipment such as tractors and combine harvesters, but today it refers to Read More
Tomato-crop-India
AsiaIndia: Using Artificial Intelligence for the Good of Fa…
July 11, 2018
After graduating from IIT-Madras, the first thing that Vivek Rajkumar did was to buy four acres near Thiruvananthapuram and start Read More
BrightFarms
Industry NewsForbes List of Innovative Ag-Tech Companies Includes Gr…
July 9, 2018
Forbes magazine recently posted a list of the 25 most innovative ag-tech startups in 2018, which includes a few companies Read More
AmericasNutrien Ag Solutions Brand, New Digital Platform Launch…
July 9, 2018
Nutrien (formerly Crop Production Services) has officially rebranded its retail business to Nutrien Ag Solutions, aligning the company’s retail operations Read More
ISPA-Yoshua-Bengio
EventsHighlights from the 14th International Conference on Pr…
July 9, 2018
The 14th International Conference on Precision Agriculture (ICPA) presented by the International Society of Precision Agriculture (ISPA) was held in Montreal, Read More
TerrAvion
Industry NewsTerrAvion Integrates Aerial Imagery with John Deere Ope…
July 6, 2018
TerrAvion, Inc., a large volume provider of aerial imagery to agriculture, has announced an integration to allow TerrAvion’s aerial imagery Read More
Farmer-Tablet
Data ManagementAgriculture’s Next Breakthrough: New Technologies…
July 3, 2018
We live in an exciting time in agriculture. Not only is technology advancing rapidly, but the understanding and comprehension of Read More
Nebraska-Storm
Precision IrrigationNotes from the Field: A Look at Irrigation Management P…
July 2, 2018
One of the things I love most about my work is making periodic treks into the field – more often Read More
Topcon X30 Console in cab
EventsAssociation Seeks Definitive Definition of “Preci…
July 2, 2018
More than two-dozen definitions of precision agriculture have been identified through the years — but which is the best and Read More
Industry NewsAg Equipment Manufacturers: 3 Trends to Shape Farming G…
July 2, 2018
Bottom line instead of brand loyalty. Tractors and harvesters will look more like computers. Data will drive productivity. These are Read More
Ag Retailer and Growers with tablet WinField United
Service ProvidersPrecision Ag Technology: Act Like You’ve Been There Bef…
July 2, 2018
One of my dad’s favorite, albeit borrowed, sayings was, “Act like you’ve been there before.” He was mostly referring to Read More