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Stubble height – The key factor |
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Research shows clearly that stubble height has a dramatic
impact on a combine harvester’s operational performance. The higher the cutter bar
is set the less straw is processed by the combine and therefore its capacity to
thresh is increased. Farmers have reported increased output by as much as 20% after
raising the cutting height by just 10 centimetres.
This results in up to 50% less straw going through the combine, increasing threshing
capability considerably as well as the capacity for separation. The operator is
also able to undertake the harvesting at increased speeds which ensures the process
is carried out much more quickly and, crucially, at much lower fuel consumption
levels.
Importantly, you can also harvest with a far greater degree of latitude when it
comes to the moisture level of the crop as it is being cut higher and is therefore
far more likely to be drier. This alone can extend early morning or later evening
harvesting opportunities and reduce expensive drying costs.
Another relevant benefit is derived from the fact that with longer stubble, the
threshed straw from the combine sits higher in the field and therefore dries faster.
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