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Arable Farming
Cropping
Calculating fertiliser cost per unit
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<blockquote data-quote="curlietailz" data-source="post: 8136710" data-attributes="member: 11831"><p>Nitram is 34.5% N which means there is 34.5% N per tonne = 345kgN per tonne</p><p></p><p>in old money that’s 34.5 units per hundredweight (50kg) </p><p>Or 17.25kg/N per hundredwieght</p><p></p><p>so</p><p>At £290/tonne the N costs 84.05p per N</p><p>Or</p><p>42.02p per unit </p><p></p><p>so 4 cwt/acre = 4 x 34.5 = 138 units x 42.025p = just shy of £58/acre </p><p></p><p>1 tonne = 20 cwt so £290. / 20 = £14.50/cwt x 4 = £58. </p><p></p><p>so using the new season price of £635 (ish)</p><p>Those 4 cwt/acre now = £127/acre</p></blockquote><p></p>
[QUOTE="curlietailz, post: 8136710, member: 11831"] Nitram is 34.5% N which means there is 34.5% N per tonne = 345kgN per tonne in old money that’s 34.5 units per hundredweight (50kg) Or 17.25kg/N per hundredwieght so At £290/tonne the N costs 84.05p per N Or 42.02p per unit so 4 cwt/acre = 4 x 34.5 = 138 units x 42.025p = just shy of £58/acre 1 tonne = 20 cwt so £290. / 20 = £14.50/cwt x 4 = £58. so using the new season price of £635 (ish) Those 4 cwt/acre now = £127/acre [/QUOTE]
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Arable Farming
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Calculating fertiliser cost per unit
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