Raising the bar for harvest efficiency

17 Sep, 2014 02:00 AM

SOUTHERN grain growers could maximise returns this harvest by simply raising the height of their header’s cutter bar.

An early outcome from research undertaken by CSIRO and Farmlink Research indicates large volumes of biomass passing through the header will inhibit some grain from reaching the bin.

The trial work, featured in a new video from the Grains Research & Development Corporation (GRDC), focused on cereal crops grown in high rainfall zones within the southern region and where harvest high was 15 centimetres.

In comparison a higher cutter bar height of approximately 60 centimetres not only reduced the amount of straw and trash being processed along with the grain, it allowed the harvester to travel faster, improving harvest efficiency. The research project is part of a major GRDC investment under its national Stubble Initiative.

Another outcome from the trial’s first year is that by harvesting higher in retained stubble farming systems, hair pinning at sowing which prevents seed soil contact is also reduced and crop emergence significantly improved.

Date: Newest first | Oldest first


17/09/2014 6:47:32 AM

What ARE these blokes going on about? Grand dad told me to harvest just below the lower heads and to get the most grain. GRDC and their glossy paper seem to be trying to justify their existence.
Pete Rothwell
17/09/2014 7:06:42 AM

Thank you GRDC!!!!! awesome information....................hm mmmmmm.
17/09/2014 7:24:27 AM

I'm not even a farmer, but I reckon I could have figured this one out!
17/09/2014 7:42:05 AM

are this lot serious? if it was their own money and had to justify a return on investment would this type of 'research' be bothered with????? grdc has to go. if their research is so valuable they should have no problem raising money elsewhere to support it
levies are worse than tax
17/09/2014 12:30:53 PM

no matter how you look at levies they are worse than tax as they have to be paid whether you made a profit or not. how the hell did this situation ever come to be??? down with the levey system and let individual farmer groups drive innovation.
17/09/2014 1:30:53 PM

and this folks is a prime example of how levies are wasted on pointless research
drowning in debt
18/09/2014 9:03:03 AM

the only positive of bank foreclosure for me was an end to having to pay these levie taxes. what a rort!
18/09/2014 9:35:48 AM

For real?!! If people want more grain in the box SLOW DOWN.
EU Farmer
20/09/2014 5:17:40 PM

Hey, this is old stuff... CNH/New Holland developed a header with a second cutter bar (double knife system)... See the follwoing link: https://www.youtube.com/watch?v=q 8M6Q6K4Vj8 or this http://agronaplo.hu/files/2013/10 /NH_Dual_Stream_Header_INB.pdf For Example: In some regions of Germany and UK you have 10 t/ha Grain and nearly 8 to 10 t/ha straw... They figured out, for each centimeter higher cutting you will get an boost of 1 % harvest capacity and an lower fuel consumption of 1-1,5%. I love the idea to burn the straw, but in our region it is not allowed...


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