THE range of emission-control farm equipment sold in Australia continues to take shape.
Manufacturers are advocating re-circulation or treatment options.
Fitting selective catalytic reduction emissions control to its T series range of tractors, New Holland claims to be "challenging the market (by) exploring new ways to enable farmers to minimise emissions."
This year, Tier 4a diesel exhaust emission regulations became a requirement for medium and heavy-duty engines above 174hp (130 kW) across Europe and North America.
With New Holland fitting SCR to its latest lineup the company is claiming the lead in "solutions that make farming productive and more efficient, while respecting the environment."
New Holland's tractor product manager, Don Forrester, said change was almost certainly coming for off-road vehicle emission control.
"Currently, all on-highway vehicles are legislated for emission control in Australia, and whilst off-highway vehicles are not, this is likely to be different in the very near future," he said.
"We are committed to integrating the best available engine technology for every machine and operation, and, as part of that, we also believe that aligning to the latest technology for emission control is the best practice in recognising future generations of farming in Australia."
As part of New Holland's strategy, SCR technology has been adopted for tractors with engines above 74kW (100hp).
"With the new technology, you can operate a Tier 4a-compliant tractor for 100 days and produce the same amount of exhaust emissions as a tractor would have produced in just one day back in 1996," Don said.
"Simply put, this technology means that we can be 100 times better, or cleaner, than we were a decade ago."
SCR technology is an after-treatment system that is completely separate from the main engine function and does not compromise engine responsiveness, horsepower or torque.
And New Holland says the use of SCR technology actually improves performance.
SCR uses a catalyst in the exhaust system that treats the nitrous oxide in the exhaust gas with an odorless mixture of chemical urea and purified water - AdBlue is a common brand of the treatment.
The treatment transforms the gases into harmless water and nitrogen.
When compared with previous New Holland tractor models, the company says SCR technology will deliver productivity advantages, ensuring lower emissions do not come at the expense performance.
New Holland claims SCR delivers more power, more torque, greater engine responsiveness to load and reduced fuel consumption, as well as longer engine oil life and filter service intervals.
"We all have a responsibility to the future and the need to reduce toxic emissions," Don Forrester said.
"Tractors with Tier 4a-emission compliance go a long way to ensuring a clean air future for future generations of Australians."