Telematics, GPS and tractor-implement automation are just a few of the technological developments set to revolutionise how operators spray in the future, according to those attending an Association of Applied Biologists (AAB) workshop last week.

As legislation tightens it’s grip and factors like the Water Framework Directive come into force, herbicide and pesticide application is going to come under ever increasing levels of scrutiny.

Chris Potter of Househam Sprayers explained that most sprayers sold now have some level of advanced control software, whether it be on a mounted or self-propelled machine.

“Using GPS mapping and Total Machine Control (TMC), it’s possible to set boundaries and set rates in the office to decrease the chance of operator error. And increased levels of automation regulation are also options that are becoming more common.

Individual nozzle control is available up to 36m and is auto regulated by either flow or pressure, depending on the rate being applied. “Being able to increase forward speeds is becoming more important, and the Auto Nozzle Select (ANS) system is able to apply seamless application rates from 100 to 800 litres/ha.”

Househam revealed that, as well as offering features that are now considered as standard like auto-nozzle shut-off and boom levelling – the company would shortly be in a position to offer real-time data capture straight to the farm office via telematics.

“As well as using GPS mapping and Field Master software, we are developing a system that uses telematics to transfer data and application rates.” Using GPRS, managers will also be able to access data remotely as well as update software, and dealers will be able to keep an eye on service schedules and operators will be able to access things like directions and details of the next job.

“As regulation increases, systems like this will go some way in reducing operator error, as well as providing proof of application rates and weather conditions.”

Spraying is becoming increasingly automated, but there’s a way to go yet, according to John Deere’s Mark James.

“It’s easy to make mistakes with far reaching consequences,” warned Mr James. Automation begins at the start of the process, he explained. Launched earlier this year, the Tank Fill Calculator allows operators to enter the the desired chemical and dilution, and whether it’s a full tank or part tank-load. “Instead of a part-tank load being worked out on the back of an envelope, this is all done automatically when the operator enters the application rate.”

Features like auto boom switching aren’t just for large-scale farmers either, he added. “On average, savings of 2-5% are possible using auto shut-off systems, but the greatest savings are to be had when using wide booms in odd-shaped or smaller fields.”

Mr James is quick to point out, however, that even with technology like boom levelling and auto shut-off, these need to be set up properly to result in any savings. “For example, to get nozzle switching as accurate as possible, forward speed has to be taken into account as well as GPS accuracy.” Things are set to become even more automated, added Mr James. “We’re already looking into using tractor generated electricity to power sprayers, as well as using ISOBUS to allow the implement to ‘talk’ to the tractor.”