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Farm Machinery
Precision Farming & GPS
The economics of autosteer
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<blockquote data-quote="Brisel" data-source="post: 60906" data-attributes="member: 166"><p>Don't forget that the extra tramlines also get no return on the fertiliser & sprays blanket applied to the field.</p><p> </p><p>I run 650mm tyres on my tractor pulling the sprayer on 30m tramlines = 1.3m out of 29.95m allowing for 1cm overlap on each 6m drill pass with autosteer. Theoretically that's 4% of the land under tramlines & not growing anything. On 24m tramlines with the same tyres & overlap that would be 5%. At 12m tramlines that's 11%. Of course at 12m I would have narrower tyres. The % figure will be higher for headlands & turn ins etc. but in winter osr the % should be lower as the crop fills in the gaps, depending on how much crop loss you have from the pre harvest desiccation pass.</p><p> </p><p>If you block off coulters in Accord/Fenix type pneumatic distributors that don't return the tramline seed to the tank, surely the seed rate on the rest of the drill is higher therefore not wasted?</p></blockquote><p></p>
[QUOTE="Brisel, post: 60906, member: 166"] Don't forget that the extra tramlines also get no return on the fertiliser & sprays blanket applied to the field. I run 650mm tyres on my tractor pulling the sprayer on 30m tramlines = 1.3m out of 29.95m allowing for 1cm overlap on each 6m drill pass with autosteer. Theoretically that's 4% of the land under tramlines & not growing anything. On 24m tramlines with the same tyres & overlap that would be 5%. At 12m tramlines that's 11%. Of course at 12m I would have narrower tyres. The % figure will be higher for headlands & turn ins etc. but in winter osr the % should be lower as the crop fills in the gaps, depending on how much crop loss you have from the pre harvest desiccation pass. If you block off coulters in Accord/Fenix type pneumatic distributors that don't return the tramline seed to the tank, surely the seed rate on the rest of the drill is higher therefore not wasted? [/QUOTE]
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Farm Machinery
Precision Farming & GPS
The economics of autosteer
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