1. Front tools
a) Straw distribution
Uniform distribution of straw is a requirement in shallow tillage, in order to create equal germination conditions for all seeds. A straw harrow in front of Carrier helps to distribute the straw over a greater area, particularly when the operation is carried out at a slight angle to the driving direction of the combine.
b) Ultrashallow cultivation
CrossCutter Knife slices the material at a 90 degree angle to the working direction of the discs and helps increase the intensity of cultivation. CrossCutter Knife is suitable for stubble cultivation and for breaking up an intercrop. When used on stubble, it further improves the breakdown of straw. In oilseed rape stubble, germination of leftover seed can be improved by working to shallower depth, thus improving field hygiene. In intercrops, all straw is fractured and simultaneously incorporated to a suitable working depth.
a) With discs
Two rows of special V55 hardened Swedish steel discs aggressively slice the soil and mix harvest trash down to 10-12cm depth. The conical shape of the discs ensures good crumbling of the soil which gives perfect germination conditions for the false seedbed. Another benefit of the conical shaped disc is a constant working angle despite of wear. The 450mm discs provide a high rotation speed with exceptional high disc pressure which effectively chops straw and create a fine tilth structure.
The disc X-shape eliminates side forces ensuring a straight operation behind the tractor. The X dividing discs are placed behind the tractor wheels for an optimum even result.
b) With discs and CrossBoard
An option for most Carrier models is the CrossBoard. CrossBoard is used mainly for crushing, pulverising and levelling ploughed land and for seedbed preparation.
In shallow cultivation it is important to leave the soil surface well consolidated, in order to create optimal conditions for germination of volunteer and weed seeds and decomposition of straw. Carrier is equipped with a steel or rubber packer that efficiently compresses the surface and finishes off the task. The diameter of the packer is 550 or 600 mm depending on model. For lighter soils with lower need for reconsolidation a cage packer can be fitted on Carrier 300 and 350.