fbpx
Print this page
Friday, 15 December 2023 12:55

Fert spreaders with curve control

Written by  Mark Daniel
Amazone fertiliser spreader Amazone fertiliser spreader

Amazone's CurveControl won a silver medal winner at Agritechnica 2023.

It adjusts the lateral distribution to the various cornering speeds and corrects the movement of the spread pattern in centrifugal fertiliser spreaders when driving around bends, resulting in more uniform crops and also helps prevent over-fertilisation inside the bend and fertiliser placement beyond the field boundary.

While curve compensation has already been implemented by Amazone in its crop sprayers, the geometry of the sprayer boom being located tight behind the physical pivot point of the machine means only the application rate within the boom needs adjustment to compensate for curves.

In the case of a fertiliser spreader, the typical throwing distance is up to twice the working width and the application area can be many metres behind the spreader, depending on the type of fertiliser, while the spread fan is kidney-shaped area. This demands a detailed knowledge of the way that the spreading unit works with various fertilisers, along with a corresponding complex implementation of a control algorithm.

Modern centrifugal fertiliser spreaders have the disadvantage that over- and under-fertilised areas inside of the working width occur when negotiating bends as a result of different speeds.

This effect is amplified by the combination of forward speed and swivelling of the spread pattern caused by the steering angle. This means that significant over-fertilisation arises in some areas because of these multiple overlaps, whereas gaps occur in other areas. In addition, the swivelling of the spread fan at the edge of the field causes fertiliser to be applied beyond the field boundary.

CurveControl prevents these effects, which are undesirable from an ecological and economic point of view, and thereby minimises the risk of nutrients leaching into the ground water. Furthermore, incorrect application beyond the field boundary when negotiating bends is prevented by the system.

In addition, CurveControl can further improve the environmentally friendly use of mineral fertiliser in combination with existing solutions such as ArgusTwin, WindControl and GPS part-width section control.

More like this

Pro feeding robots to cut, load silage

While feeding dairy animals in New Zealand is largely centred around feed trailers, mixer wagons or baleage, one wonders whether there is a place for robotic feeders, particularly in South Island locations, where cows are housed during winter or full time.

Fliegl offers effluent solutions

Founded in Germany as recently as 1977, today, the Fliegl Group employs more than 1100 workers, offering an expansive range of transport solutions, from their base in Bavaria.

LDV unveils all-new Terron 9 Elite ute

As if there wasn’t enough choice in the New Zealand ute market, LDV New Zealand is expanding its offering, by showcasing the all-new Terron 9 Elite at Fieldays.

Featured

Big return on a small investment

Managing director of Woolover Ltd, David Brown, has put a lot of effort into verifying what seems intuitive, that keeping newborn stock's core temperature stable pays dividends by helping them realise their full genetic potential.

Editorial: Sensible move

OPINION: The Government's decision to rule out changes to Fringe Benefit Tax (FBT) that would cost every farmer thousands of dollars annually, is sensible.

National

Machinery & Products