After years of using the vacuum principle for maize seed singulation, Amazone has introduced a pressurised wheel metering system for its Precea models.
The option is available on its 9m, 12-row trailed machine and 6m, eight-rower and works by pressurising the hopper to force the seed into a grooved wheel before it is fired into an airstream and down to the soil.
One of the biggest issues with these types of system is the pace at which the seed hits the soil, as it has a tendency to bounce. To remedy this, a 300mm rubber catcher roller follows closely behind to secure the seed.
There are two options – either a mechanical Special coulter or electronic Super coulter, with the latter benefiting from individual row shutoff and planting speeds of up to 15kph.
FertiSpot has also been added to the coulters. This drops fertiliser in blobs rather than rows to get the product closer to the plant.